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Sample records for broilers

  1. Space needs of broilers

    NARCIS (Netherlands)

    Bokkers, E.A.M.; Boer, de I.J.M.; Koene, P.

    2011-01-01

    There is continuing debate about the space needs and requirements of broiler chickens, The aims of this study were to measure the amount of floor area a six-week-old broiler occupies for different behaviours and to use the obtained results in two models to estimate the number of birds that can be

  2. Pendulous Crop in Broilers

    Directory of Open Access Journals (Sweden)

    PD Ebling

    2015-09-01

    Full Text Available ABSTRACTPendulous crop is a physiological disorder, which etiology is still unknown and it is characterized by abnormal dilation of the crop of poultry. This article aims at reporting a case of high incidence of pendulous crop in male and female broilers Cobb 500, as well as to discuss its possible causes and consequences. In an experiment with broilers performed at the experimental facilities of Laboratório de Ensino Zootécnico of UFRGS, a high incidence (9.5% of pendulous crop was observed. Genetic predisposition is the most frequently documented and accepted cause of that condition. Despite presenting the same live weight as normal broilers, birds with pendulous crop had lower carcass weight due to dehydration and malnourishment, and should be culled after diagnosis. Therefore, further studies on the origin and control of this physiological disorder are warranted.

  3. Malabsorption syndrome in broilers

    NARCIS (Netherlands)

    Rebel, J.M.J.; Balk, F.R.M.; Post, J.; Hemert, van S.; Zekarias, B.; Stockhofe, N.

    2006-01-01

    Malabsorption syndrome (MAS) is a multifactorial disease that causes intestinal disorders in broilers due to infection of the gastrointestinal tract with different infectious agents. The exact aetiology is unknown, although several viruses are isolated from MAS affected chickens. None of these

  4. Feasibility Analyses of Integrated Broiler Production

    Directory of Open Access Journals (Sweden)

    L. Komalasari

    2010-12-01

    Full Text Available The major obstacles in the development of broiler raising is the expensive price of feed and the fluctuative price of DOCs. The cheap price of imported leg quarters reduces the competitiveness of the local broilers. Therefore, an effort to increase production efficiency is needed through integration between broiler raising and corn farmers and feed producers (integrated farming. The purpose of this study is to analyze the feasibility of integrating broiler raising with corn cultivation and feed production. Besides that, a simulation was conducted to analyze the effects of DOC price changes, broiler price and production capacity. The analyses showed that integrated farming and a mere combination between broiler raising and feed factory of a 10,000 bird capacity is not financially feasible. Increasing the production to 25,000 broiler chickens will make the integrated farming financially feasible. Unintegrated broiler raising is relatively sensitive to broiler price decreases and DOC price increases compared to integrated farming.

  5. Major welfare issues in broiler breeders

    NARCIS (Netherlands)

    Jong, de I.C.; Guemene, D.

    2011-01-01

    Under current practices, broiler parent stock (broiler breeders) encounter several welfare problems, such as feed restriction and injury during mating. Intensive selection for production traits, especially growth rate, is associated with increased nutritious requirement and thus feed consumption,

  6. Using management information in broiler supply chains

    NARCIS (Netherlands)

    Yassin, H.

    2012-01-01

    The Dutch broiler supply chain involves several interdependent firms such as breeding and feed companies, rearing farms, breeder farms, broiler hatcheries and broiler farms. To stay competitive and sustain continuity, evaluation of production at each level of the chain is crucial. Good quality data

  7. Welfare of broiler chickens

    Directory of Open Access Journals (Sweden)

    Federico Sirri

    2010-01-01

    Full Text Available Broiler chickens have been selected for their rapid growth rate as well as for high carcass yields, with particular regard to the breast, and reared in intensive systems at high stocking density ranging from 30 to 40 kg live weight/m2. These conditions lead to a worsening of the welfare status of birds. In Europe a specific directive for the protection of broiler chickens has been recently approved whereas in Italy there is not yet any regulation. The EU directive lays down minimum rules for the protection of chickens kept for meat production and gives indications on management practices with particular focus on stocking density, light regimen and air quality, training and guidance for people dealing with chickens, as well as monitoring plans for holding and slaughterhouse. In this review the rearing factors influencing the welfare conditions of birds are described and detailed information on the effects of stocking density, light regimen, litter characteristic and air quality (ammonia, carbon dioxide, humidity, dust are provided. Moreover, the main health implications of poor welfare conditions of the birds, such as contact dermatitis, metabolic, skeletal and muscular disorders are considered. The behavioural repertoire, including scratching, dust bathing, ground pecking, wing flapping, locomotor activity, along with factors that might impair these aspects, are discussed. Lastly, farm animal welfare assessment through physiological and behavioural indicators is described with particular emphasis on the “Unitary Welfare Index,” a tool that considers a wide range of indicators, including productive traits, in order to audit and compare the welfare status of chickens kept in different farms.

  8. Effects of time of change from broiler starter to broiler finisher diet on ...

    African Journals Online (AJOL)

    A study was conducted to determine the effect of time of change from broiler starter ration (BSR) to broiler finisher ration (BFR) on growth performance and economy of gain of meat- type chickens. Six hundred Abor Acres broiler chickens were used in an 8-week study in which same starter and finisher diets were fed but at ...

  9. Belgian citizens' and broiler producers' perceptions of broiler chicken welfare in Belgium versus Brazil.

    Science.gov (United States)

    Vanhonacker, F; Tuyttens, F A M; Verbeke, Wim

    2016-07-01

    New EU regulations require more stringent country-of-origin labeling, while imports of broiler meat from non-EU countries are increasing. In light of these trends, we have studied citizens' and producers' perceptions of broiler meat originating from Belgium versus Brazil and their perception of broiler production in Belgium versus Brazil. A particular focus was the association between country of origin and perceived level of animal welfare. We also investigated the perception of scaling-up and outdoor access in terms of perceived level of animal welfare. Cross-sectional survey data was collected among Flemish citizens (n = 541) and broiler producers (n = 114). In accordance with literature on general farm animal welfare, both stakeholder types claimed to allocate great importance to broiler welfare and generally agreed with the Welfare Quality model of broiler welfare. Citizens disagreed with the producers that 1) consumers are not willing to pay more for higher welfare products, 2) that broilers suffer little, 3) that broiler welfare in current Belgian production units is generally non-problematic, 4) that scaling-up production units would not have a positive impact on profitability nor a profoundly negative impact on broiler welfare, and 5) that the impact of providing broilers with outdoor access is negative for consumers, farmers, and broilers. Country of origin had a strong influence on the perception of both broiler production and broiler meat. Belgian citizens, and producers (much more than citizens) considered nearly all aspects related to broiler production and broiler meat to be significantly superior for chicken produced in Belgium compared to Brazil. Further research should focus on how these perceptions influence purchase intentions and production decisions. Future avenues for research are to quantify market opportunities for country-of-origin labeling and to investigate to which extent stakeholders' perceptions correspond with reality. © 2016 Poultry

  10. Data Driven Broiler Weight Forecasting using Dynamic Neural Network Models

    DEFF Research Database (Denmark)

    Johansen, Simon Vestergaard; Bendtsen, Jan Dimon; Riisgaard-Jensen, Martin

    2017-01-01

    In this article, the dynamic influence of environmental broiler house conditions and broiler growth is investigated. Dynamic neural network forecasting models have been trained on farm-scale broiler batch production data from 12 batches from the same house. The model forecasts future broiler weight...

  11. Mineral profiling, carcass quality and sensory evaluation of broiler ...

    African Journals Online (AJOL)

    An investigation to determine the mineral composition, carcass quality and organoleptic properties of the meat of broilers fed basal broiler feeds supplemented with different leaf meals was conducted. Four treatments: basal proprietary broiler feed only (T1 - PBF) as control, basal proprietary broiler feeds supplemented with ...

  12. Date stones in broiler's feeding

    Directory of Open Access Journals (Sweden)

    Gualtieri, M.

    1990-01-01

    Full Text Available To evaluate date stones as dietary component for broilers, two trials were carried out. In the first trial, Tunisian Deglet date stones were used and in the second one, stones were the waste product of an Italian distillery. One-day-old Arbor Acres chickens were cage reared and fed for 6 weeks on 4 experimental diets, which were formulated to be isonitrogenous and isocaloric and differed in cereal component (maize or low tannin sorghum and in inclusion level (0 or 10 % of ground date stones. Birds ' performances were slightly different in the two trials, but overall results indicate that date stones are suitable for use in broiler's feeding under such conditions.

  13. Behavioural motivations and abilities in broilers

    NARCIS (Netherlands)

    Bokkers, E.A.M.

    2004-01-01

    Broilers are chickens kept commercially under intensive husbandry conditions for poultry meat production. They grow to a slaughterweight of approximately 2.2 kg in 6 weeks. Broilers show a pronounced decrease in behavioural activity during their short life. The aim of this thesis was to gain more

  14. Flies and Campylobacter infection of broiler flocks

    DEFF Research Database (Denmark)

    Hald, Birthe; Skovgård, Henrik; Bang, Dang Duong

    2004-01-01

    A total of 8.2% of flies caught outside a broiler house in Denmark had the potential to transmit Campylobacter jejuni to chickens, and hundreds of flies per day passed through the ventilation system into the broiler house. Our study suggests that flies may be an important source of Campylobacter...

  15. Broiler Growers. People on the Farm.

    Science.gov (United States)

    Department of Agriculture, Washington, DC. Office of Governmental and Public Affairs.

    This booklet, one in a series about life on modern farms, describes the daily life of the Maurice Layton family, broiler (chicken) growers in Mississippi. Beginning with early morning chores, the booklet traces the family's activities through a typical day while explaining how a broiler farm operates. Although the booklet focuses on broiler…

  16. Boron supplementation in broiler diets

    Directory of Open Access Journals (Sweden)

    EJ Fassani

    2004-12-01

    Full Text Available Boron supplementation in broiler feed is not a routine practice. However, some reports suggest a positive effect of boron on performance. This study assessed the effects of boron supplementation on broiler performance. Diets were based on maize and soybean meal, using boric acid P.A. as boron source. Six supplementation levels (0, 30, 60, 90, 120 and 150 ppm were evaluated using 1,440 one-day old males housed at a density of 30 chickens in each of 48 experimental plots of 3m². A completely randomized block design was used with 8 replicates. Feed intake, weight gain and feed conversion were assessed in the periods from 1 to 7 days, 1 to 21 days and 1 to 42 days of age, and viability was evaluated for the total 42-day rearing period. No performance variable was affected by boron supplementation (p>0.05 in the period from 1 to 7 days. The regression analysis indicated an ideal level of 37.4 ppm of boron for weight gain from 1 to 21 days (p0.05, although feed intake was reduced linearly with increased boron levels (p0.05. Ash and calcium percentages in the tibias of broilers and viability in the total rearing period were not affected by boron supplementation (p>0.05.

  17. Prevalence and characterization of Salmonella in two integrated broiler operations in Korea.

    Science.gov (United States)

    Ha, Jong Su; Seo, Kwang Won; Kim, Yeong Bin; Kang, Min Su; Song, Chang-Seon; Lee, Young Ju

    2018-01-01

    Vertical integration of the broiler industry allows producers to combine different biosecurity and sanitation practices, housing technologies, and feeding regimens to improve food safety. The purpose of this study was to investigate the prevalence and distribution of Salmonella, to determine the source of Salmonella contaminants, and to reveal the relationships between isolates at each step in the vertically integrated broiler production system in two representative integrated broiler companies in Korea. A total of 2148 samples were collected from 2 broiler breeder hatcheries, 14 broiler breeder farms, 3 broiler hatcheries, 16 broiler farms, 8 broiler transporting trucks and 6 slaughterhouses belonging to representative integrated broiler companies, and 205 (9.5%) of these samples were positive for Salmonella. The Salmonella prevalence in broiler hatcheries (34.0%) and broiler transporting trucks (62.5%) was higher (P broiler breeder hatchery (0.8%) was lower (P broiler breeder hatchery, and broiler hatcheries and broiler farms.

  18. Review of environmental enrichment for broiler chickens

    DEFF Research Database (Denmark)

    Riber, Anja Brinch; Van de Weerd, H.A.; de Jong, I.C.

    2018-01-01

    and welfare of the different kinds of environmental enrichments in the production of broilers that have been described in the scientific literature. Environmental enrichment is defined as an improvement of the environment of captive animals, which increases the behavioral opportunities of the animal and leads...... to improvements of the biological function. This definition has been broadened to include practical and economic aspects, as any enrichment strategy that adversely affects the health of animals or that has too many economic or practical constraints will never be implemented on commercial farms and thus never...... benefit animals. Environmental enrichment for broilers often has the purpose of satisfying behavioral needs and/or stimulating the broilers to an increased level of activity, which among others will reduce the occurrence of leg problems. Potentially successful environmental enrichments for broiler...

  19. Relative toxicity of gossypol enantiomers in broilers

    OpenAIRE

    Lordelo, M.M.; Davis, A.J.; Calhoun, M.C.; Dowd, M.K.; Dale, N.M.

    2005-01-01

    Use of cottonseed meal in poultry diets has been avoided in large part because of fear of gossypol toxicity. Gossypol exists naturally as a mixture of 2 enantiomers that exhibit different biological activities. Two experiments were conducted to determine the relative toxicity of gossypol enantiomers on broilers. In the first experiment, 3-d-old broilers were fed a standard diet containing 0, 100, 200, 300, or 400 mg of gossypol from gossypol acetic acid per kilogram of...

  20. Haematological and serum biochemical profiles of broiler chickens ...

    African Journals Online (AJOL)

    MOLM) on the haematological and serum biochemical profile of broiler chickens. Fresh Moringa leaves (FML) were shade-dried for four days and milled into meal. A total of two hundred broilers unsexed chickens (Anak strain) were randomly ...

  1. Effects of broiler feed medications on Salmonella.

    Science.gov (United States)

    Volkova, Victoriya V; Hubbard, Sue Ann; Magee, Danny L; Byrd, J Allen; Bailey, Richard H; Wills, Robert W

    2013-09-01

    This pilot analysis was conducted with data from 52 conventional grow-out broiler flocks in a prospective field observational study in the southeastern United States during 2003-2006. Each flock was sampled for Salmonella 1 wk before the end of grow-out, upon arrival at the processing plant, and during processing (prior to and immediately after carcass chilling). The broiler litter was sampled on the day of bird harvest. The grow-out feeding programs, including the medications delivered in feed, were surveyed with questionnaires completed by the broiler managers and feedmill managers. Each detail of the feeding program was tested for statistical association with the frequency of Salmonella in the flock at each sampling point, after accounting for variation in Salmonella frequency between the farms, broiler complexes, and companies. Significant associations were found between Salmonella frequency in the broiler flock pre- and postharvest and the inclusion of feeds containing individual coccidiostats and other antimicrobial growth promoters, days on feed, and total consumption of feeds containing these products, as well as with practices such as a mash feed and a nonmedicated withdrawal feed. The analysis provided testable hypotheses for how broiler feed medications impact the frequency of Salmonella in the flocks.

  2. Longitudinal study of transmission of Escherichia coli from broiler breeders to broilers

    DEFF Research Database (Denmark)

    Poulsen, Louise Ladefoged; Thoefner, Ida; Bisgaard, Magne

    2017-01-01

    Escherichia coli is of major importance in industrial broiler production as the main cause of salpingitis and peritonitis in broiler breeders. Furthermore E. coli is the most common cause of first week mortality in broiler chickens. The aim of the present study was to investigate the transmission...... hatched chickens from each flock were swabbed in the cloaca on four occasions (parent age 30, 40, 50, 60 weeks) and E. coli was isolated. Causes of first week mortality were determined pathologically and bacteriologically. E. coli isolates from parents, newly hatched chickens and first week mortality were...... chickens. PFGE of E. coli showed identical band patterns in isolates from the three different sources indicating a transmission of E. coli from parent birds to chickens. In conclusion, E. coli isolated from salpingitis in broiler parents were found to be transmitted to broilers in which some sequence types...

  3. Danish strategies to control Campylobacter in broilers and broiler meat: facts and effects

    DEFF Research Database (Denmark)

    Rosenquist, Hanne; Boysen, Louise; Galliano, C.

    2009-01-01

    Thermotolerant Campylobacter spp. have been the most common bacterial cause of human gastrointestinal disease in Denmark since 1999. In 2003, the Danish voluntary strategy to control Campylobacter was intensified. The focus was on biosecurity, allocation of meat from Campylobacter-negative broilers...... to the production of chilled products, and consumer information campaigns. From 2002 to 2007, the percentage of Campylobacter-positive broiler flocks at slaughter decreased from 43% to 27%. After processing, Campylobacter-positive samples of chilled broiler meat fell from 18% in 2004 to 8% in 2007. Furthermore......, the number of registered human Campylobacter cases decreased by 12%; from 4379 cases in 2002 to 3865 cases in 2007. We believe that the observed decrease in the occurrence of Campylobacter in broilers and broiler meat and the coincidental fall in the number of registered human cases is, in part, a result...

  4. Reduction of Phosphorus Pollution from Broilers Waste through Supplementation of Wheat Based Broilers Feed with Phytase

    Directory of Open Access Journals (Sweden)

    Ahmed Abdel-Megeed

    2015-01-01

    Full Text Available The present study was conducted to reduce phosphorus pollution from broilers waste by supplementing phytase enzyme in broilers fee. Two hundred two-week-old broilers (Hubbard were selected and randomly allocated to three dietary treatment groups, one control group (without phytase and two trial groups (group A with 300 U/kg phytase and group B with 600 U/kg phytase. Each group was composed of 5 replicates with 10 chicks. Broilers fed the control diet (without phytase gained weight slower (P 0.05 reduces excreta P and Ca level. Phytase addition did not affect excreta pH. The presence of phytase in feed mixtures significantly (P > 0.05 improves the body weight gain and feed intake of broiler chickens.

  5. Subject Review Article : Broiler litter as feed for ruminants - Potential ...

    African Journals Online (AJOL)

    Generally, growth rate, milk production and feed efficiency were higher in animals (sheep, goats and cattle) fed broiler litter-based diet than in animals fed control diet (without broiler litter). This paper reviews the nutritional value, health hazard, processing techniques and factors affecting the acceptability of broiler litter as ...

  6. Modelling responses of broiler chickens to dietary balanced protein

    NARCIS (Netherlands)

    Eits, R.M.

    2004-01-01

    Protein is an important nutrient for growing broiler chickens, as it affects broiler performance, feed cost as well as nitrogen excretion. The objective of this dissertation was to develop a growth model for broiler chickens that could be easily used by practical nutritionists. The model should

  7. Econometric analysis of the determinants of broiler carcass weight ...

    African Journals Online (AJOL)

    This study was done to evaluate rationale behind the choice of feeding method in broiler management; identifying the variables that influence carcass weights of broilers as well as comparing the mean carcass weights of broilers raised under feed restriction and ad libitum in FUTO Farm, Owerri, Nigeria. Data were collected ...

  8. Carcass and organ characteristics of broilers fed graded levels of ...

    African Journals Online (AJOL)

    The effect of graded levels of heat-treated castor oil bean meal and supplementary L-lysine on carcass and organ characteristics of broiler birds was investigated. In experiment 1, 180 seven-day old broiler chicks (Anak strain) were randomly divided into 12 groups of 15 birds each. In experiment 2, 144 six weeks old broiler ...

  9. Weight prediction of broiler chickens using 3D computer vision

    DEFF Research Database (Denmark)

    Mortensen, Anders Krogh; Lisouski, Pavel; Ahrendt, Peter

    2016-01-01

    descriptors and, finally, predicted the individual broiler weights using a Bayesian Artificial Neural Network. Four other models for weight prediction were also evaluated. The system were tested in a commercial broiler house with 48,000 broilers (Ross 308) during the last 20 days of the breeding period...

  10. Performance of broiler chickens served heat-treated fluted pumpkin ...

    African Journals Online (AJOL)

    The broiler starters were fed the same starter diet, while broiler finishers were equally fed the same finisher diet. Water and feeds were served ad-libitum. The FPLE is a valuable protein and mineral supplement for broiler chickens. One to five minutes heat treatment of FPLE reduced the concentrations of phytate and tannin ...

  11. Hematology and Serum Biochemistry of Broiler Chicks Fed Soybean ...

    African Journals Online (AJOL)

    Hematology and serum biochemical responses of broiler chicks to soybean subjected to varying toasting periods were assessed using ninety 4-week old broilers. In the 28-days trial, broilers were assigned to soybean subjected to five toasting times of 0 minutes as control, 5, 10, 15 and 20 minutes as treatment 1, 2, 3, 4 and ...

  12. Influence of different energy sources on the performance of broiler ...

    African Journals Online (AJOL)

    Influence of different energy sources on the performance of broiler chicks. PN Onu, LLC Ugwu, MO Otuma, EN Uchewa. Abstract. An experiment was conducted with 63 day-old Anak broiler chicks to investigate the growth response of broilers fed diets containing different energy sources. Three experimental diets were ...

  13. Longitudinal study of transmission of Escherichia coli from broiler breeders to broilers.

    Science.gov (United States)

    Poulsen, Louise Ladefoged; Thøfner, Ida; Bisgaard, Magne; Christensen, Jens Peter; Olsen, Rikke Heidemann; Christensen, Henrik

    2017-08-01

    Escherichia coli is of major importance in industrial broiler production as the main cause of salpingitis and peritonitis in broiler breeders. Furthermore E. coli is the most common cause of first week mortality in broiler chickens. The aim of the present study was to investigate the transmission of E. coli, isolated from broiler breeders with salpingitis, to the progeny and the possibility of subsequent first week mortality. Four parent flocks were followed during the whole production period (20-60 weeks) by post mortem and bacteriological examination of randomly selected dead birds. Newly hatched chickens from each flock were swabbed in the cloaca on four occasions (parent age 30, 40, 50, 60 weeks) and E. coli was isolated. Causes of first week mortality were determined pathologically and bacteriologically. E. coli isolates from parents, newly hatched chickens and first week mortality were selected for Pulsed-Field-Gel-Electrophoresis (PFGE) and Multi-Locus-Sequence-Typing (MLST) to determine their clonal relationships. E. coli was the main cause of both salpingitis in parents and first week mortality in broilers, and E. coli dominated the bacterial flora of the cloaca of newly hatched chickens. PFGE of E. coli showed identical band patterns in isolates from the three different sources indicating a transmission of E. coli from parent birds to chickens. In conclusion, E. coli isolated from salpingitis in broiler parents were found to be transmitted to broilers in which some sequence types contributed to the first week mortality. Copyright © 2017 Elsevier B.V. All rights reserved.

  14. Broiler health status has a major negative impact on broiler flock contamination with Campylobacter spp. in Lithuania

    DEFF Research Database (Denmark)

    Legaudaite-Lydekaitiene, Viktorija; Serniene, Loreta; Vismantaite, Vaida

    2017-01-01

    analysed using the statistical package SPSS. Study revealed that 59.3% of the examined broiler flocks were contaminated with Campylobacter spp. Statistical analysis revealed that broiler flock contamination with Campylobacter was abattoir- and farm-dependent. Among a number of risk factors (e.g. the number...... of broiler houses at the farm, the type of ventilation system, the presence of the anteroom and boot security, etc.) identified, two broiler health-associated characteristics: (i) broiler age and (ii) the average weight per bird at abattoir had the highest impact on the increased prevalence of Campylobacter...

  15. Relations between the occurrence of resistance to antimicrobial growth promoters among Enterococcus faecium isolated from broilers and broiler meat

    DEFF Research Database (Denmark)

    Emborg, Hanne-Dorthe; Andersen, J. S.; Seyfarth, Anne Mette

    2003-01-01

    and streptogramin. By February 1998, all antimicrobial growth promoters (AGPs) were withdrawn from the Danish broiler production. The present study investigates, by logistic regression analyses, the (1) changes in the occurrence of AGP resistance among E. faecium from broilers and broiler meat from the fourth...... quarter of 1995 to the fourth quarter of 2001 and (2) relations between the occurrence of AGP resistance among E. faecium isolates from Danish broilers and AGP resistance among E. faecium isolates from the broiler meat of Danish and unknown origin collected in the same quarter within the year....... In the present study, we showed that after the AGP withdrawal, a significant decline in resistance to avilamycin, erythromycin, vancomycin and virginiamycin was observed among E. faecium from broilers and broiler meat. In addition, a decline in the occurrence of AGP resistance among E. faecium from Danish...

  16. Herbal extracts in diets for broilers

    Directory of Open Access Journals (Sweden)

    Tiago Goulart Petrolli

    2012-07-01

    Full Text Available The objective of this study was to evaluate the effect of feeding herbal extracts for broilers on performance and histology of the intestinal mucosa and its effects on the profiting from the metabolizable energy of experimental diets. For so, two experiments were conducted. In experiment I, the inclusion of different herbal extracts in diets on performance and intestinal histology of broilers was evaluated, and in experiment II, the values of apparent metabolizable energy and metabolizable energy corrected by the nitrogen balance of the experimental diets were studied. Treatments consisted of: positive control diet; positive control + avilamycin; negative control; negative control + 100 ppm of a complex containing three different herbal medicines (pepper, cinnamon and oregano; negative control + 75 ppm garlic extract; negative control + 150 ppm garlic extract. In the performance experiment, which comprised the period of 1 to 40 days of age, 960 male broilers were distributed in a randomized block design, with six treatments and eight replicates, with 20 birds per experimental unit. In experiment II, the method adopted was the traditional of total excreta collection with male broiler chicks in the age of 14 to 24 days, in a completely randomized design, with six treatments and eight replicates with five birds per experimental unit. The intestinal villus height was improved with addition of the composite containing the three herbal extracts; however, crypt depth and villus/crypt ratio were not affected. The use of herbal extract in diets for broilers promotes performance similar to that with the use of antibiotics. Herbal extracts can be incorporated into diets replacing antibiotics without compromising the metabolizable energy of diets, performance or intestinal mucosa for broilers in the period of 1 to 40 days of age.

  17. PREVALENT DISEASES AND OVERALL MORTALITY IN BROILERS

    Directory of Open Access Journals (Sweden)

    M. Farooq, Zahir-ud-Din, F .R. Durrani, M.A. Mian, N. Chand and J. Ahmed1

    2002-03-01

    Full Text Available Records from 62-broiler farms located in Swat, North West Frontier Province (NWFP, Pakistan were, collected during the year 1998 to investigate prevalent diseases and overall mortality in broilers. Losses due Hydro-pericardium syndrome (HPS were the highest (17.05 ± 2.08% and the lowest due to coccidiosis 9.39 ± 3.82%. Non-significant differences existed in mortality caused by Newcastle, IBD and yolk sac infection. Differences in losses caused by infectious coryza, enteritis and coccidiosis were also non- significant. Average overall mortality was 13.05 ± 1.16%, representing 7.59 ± 0.46% losses from day-1 to day 14 and 18.52 ± 0.95% from day-15 till marketing of broilers (42-50 days. Lower (p<0.05 overall mortality was observed in broilers reared on well-finished concrete floors (12.43 ± 1.45 % than in those on brick+mud made floors (14.36 ± 1.55. Higher (p<0.05 overall mortality was found in overcrowded houses 5.60 ± 5.62% than in optimally utilized houses (10.69 ± 1.51%. Overall mortality was higher (p<0.05 in flocks under substandard vaccination schedule (15.92 ± 1.55% than in those maintained under standard lancination schedule (10.20 ± 1.21%. Overall mortality was higher (21.11 ± 3.39% when the interval between two batches was ≤ 7 days than 16-20 days (5.72 ± 3.01%. Lower (p<0.05 overall mortality was und in broilers maintained under good hygienic ( 11.59 ±1.93% and sanitary conditions ( 10.82 ± 1.16% compared to those under poor hygienic and sanitary conditions (14.12 ± 2.81% and 15.15 ± 1.68 %respectively. Maintenance of broilers under good hygienic conditions on well finished concrete floor, providing the required space/broiler, following recommended vaccination schedule without HPS vaccine and keeping 8.20 days interval between two batches were suggested as key factors in reducing mortality among broilers in Swat

  18. Thermophilic Campylobacter spp. in Danish broiler production: a cross-sectional survey and a retrospective analysis of risk factors for occurrence in broiler flocks

    DEFF Research Database (Denmark)

    Hald, Birthe; Wedderkopp, A.; Madsen, Mogens

    2000-01-01

    In order to elucidate the rate of thermophilic Campylobacter spp, carriage in Danish broiler production and to identify risk factors for occurrence of campylobacter in broiler flocks, a total of 88 randomly selected broiler flocks were tested for campylobacter infection, and a subsequent study...... days (OR = 5.0, 1.2 important biosecurity measure for production of campylobacter-free broilers....

  19. First week nutrition for broiler chickens

    NARCIS (Netherlands)

    Lamot, David

    2017-01-01

    During the first week of life, broiler chickens undergo various developmental changes that are already initiated during incubation. Ongoing development of organs such as the gastro- intestinal tract and the immune system may affect the nutritional requirements during this age period. Despite the

  20. Detoxified Castor Seed Cake for Broilers

    Directory of Open Access Journals (Sweden)

    DE Faria Filho

    2016-03-01

    Full Text Available Abstract The objective of the present study was to evaluate the effect of the dietary detoxified castor seed cake (DCC inclusion on broiler performance and carcass traits. Two hundred and fifty Cobb-500(r broilers were distributed according to a completely randomized experimental design consisting of five treatments (dietary inclusion of 0.0, 2.5, 5.0, 7.5, and 10.0% DCC with five replicates of 10 birds each (five males and five females. Feed intake (FI, body weight gain (WG, and feed conversion ratio (FCR were evaluated from one to 40 days of age. Carcass yield and the yields of the breast, leg (drumstick+thighs, and wings were determined when broilers were 40 days old. Live performance parameters were influenced by DCC dietary inclusion, and levels 2.00, 1.38, and 1.25% DCC impaired FI, WG, and FCR, respectively. Carcass and parts yields were not affected by dietary DCC inclusion. It was concluded that the addition of DCC levels up to 1.25% to broiler diets does not impair live performance or carcass traits.

  1. Alternative anticoccidial treatment of broiler chickens

    NARCIS (Netherlands)

    Elmusharaf, M.A.

    2007-01-01

    This thesis describes the effects of mannanoligosaccharides (MOS) and electromagnetic fields (EMF) in broiler chickens infected with Eimeria parasites. The question addressed was whether ingestion of MOS or exposure to EMF would counteract the coccidiosis-induced depression of growth performance and

  2. Quantifying transmission of Campylobacter spp. among broilers

    NARCIS (Netherlands)

    Gerwe, van T.J.; Bouma, A.; Jacobs-Reitsma, W.F.; Broek, van den E.W.F.; Klinkenberg, D.; Stegeman, J.A.; Heesterbeek, J.A.P.

    2005-01-01

    Campylobacter species are frequently identified as a cause of human gastroenteritis, often from eating or mishandling contaminated poultry products. Quantitative knowledge of transmission of Campylobacter in broiler flocks is necessary, as this may help to determine the moment of introduction of

  3. Broiler breeding strategies using indirect carcass measurements

    NARCIS (Netherlands)

    Zerehdaran, S.; Vereijken, A.L.J.; Arendonk, van J.A.M.; Bovenhuis, H.; Waaij, van der E.H.

    2005-01-01

    The objective of the current study was to determine the consequences of using indirect carcass measurements on the genetic response and rate of inbreeding in broiler breeding programs. In the base breeding scheme, selection candidates were evaluated based on direct carcass measurements on relatives.

  4. Improving broiler lifestyle: a CFD approach

    CSIR Research Space (South Africa)

    Humbert, U

    2014-01-01

    Full Text Available detrimental effects and can negatively influence the growth or health of the broiler. These houses make use of different combinations of heaters, fans and inlets to warm, cool and ventilate the house. This needs to happen within very specific parameters...

  5. Use of NGS in Commercial Broiler Production

    Science.gov (United States)

    With the development and evolution of next generation sequencing technologies, these powerful tools can be applied to a variety of aspect of commercial broiler production, especially in respect to food safety issues. NGS technologies allow for a deeper understanding of the complex microbiota inhere...

  6. Sweet lupins as a feedstuff for broilers

    African Journals Online (AJOL)

    An experiment was conducted to determine the feeding value of sweet white lupins (Lupinus a/bus variety. Buttercup) for broilers up to 8weeks of age. Two isocaloric and isonitrogenous starter (0- 4weeks) and finisher. (4 - 8 weeks) diets were formulated with one containing no lupins and the other 400 g lupins/kg.

  7. Biological performance and gastrointestinal development of broiler ...

    African Journals Online (AJOL)

    Unknown

    Short paper and poster abstracts: 38th Congress of the South African Society of Animal Science. The South African Journal of Animal Science is available online at http://www.sasas.co.za/Sajas.html. 136. 136. Biological performance and gastrointestinal development of broiler chicks fed diets varying in energy : protein ratio.

  8. Biological performance and gastrointestinal development of broiler ...

    African Journals Online (AJOL)

    Unknown

    The effects of varying E:P ratios on the intestinal function of poultry are less well ... were formulated using maize, maize gluten, soyabean meal, sunfower meal, soya protein isolate, fish meal and vegetable oil. ... Table 1 Effects of varying dietary energy:protein ratios on the biological performance of broiler chicks. Energy (MJ.

  9. Effect of probiotics on broiler meat quality

    African Journals Online (AJOL)

    STORAGESEVER

    2009-08-04

    Aug 4, 2009 ... natives for substituting these traditional growth promoters have been evaluated and probiotics have ... example, conducted a 6 week growth performance study with broilers and found that live weight gain .... whole yeast (WY) or Saccharomyces cerevisiae extract. (YE). However, the present results differ ...

  10. Scoring biosecurity in European conventional broiler production.

    Science.gov (United States)

    Van Limbergen, T; Dewulf, J; Klinkenberg, M; Ducatelle, R; Gelaude, P; Méndez, J; Heinola, K; Papasolomontos, S; Szeleszczuk, P; Maes, D

    2018-01-01

    Good biosecurity procedures are crucial for healthy animal production. The aim of this study was to quantify the level of biosecurity on conventional broiler farms in Europe, following a standardized procedure, thereby trying to identify factors that are amenable to improvement. The current study used a risk-based weighted scoring system (biocheck.ugent ®) to assess the level of biosecurity on 399 conventional broiler farms in 5 EU member states. The scoring system consisted of 2 main categories, namely external and internal biosecurity, which had 8 and 3 subcategories, respectively. Biosecurity was quantified by converting the answers to 97 questions into a score from 0 to 100. The minimum score, "0," represents total absence of any biosecurity measure on the broiler farm, whereas the maximum score, "100," means full application of all investigated biosecurity measures. A possible correlation between biosecurity and farm characteristics was investigated by multivariate linear regression analysis. The participating broiler farms scored better for internal biosecurity (mean score of 76.6) than for external biosecurity (mean 68.4). There was variation between the mean biosecurity scores for the different member states, ranging from 59.8 to 78.0 for external biosecurity and from 63.0 to 85.6 for internal biosecurity. Within the category of external biosecurity, the subcategory related to "infrastructure and vectors" had the highest mean score (82.4), while the subcategory with the lowest score related to biosecurity procedures for "visitors and staff" (mean 51.5). Within the category of internal biosecurity, the subcategory "disease management" had the highest mean score (65.8). In the multivariate regression model a significant negative correlation was found between internal biosecurity and the number of employees and farm size. These findings indicate that there is a lot of variation for external and internal biosecurity on the participating broiler farms

  11. Produksi dan Pemasaran Komoditas Broiler di Jawa Barat

    Directory of Open Access Journals (Sweden)

    Saptana Saptana

    2017-07-01

    Full Text Available The development of broiler industry can be a basis for the economic growth and employment opportunities. There are three broiler breeding patterns i.e. independent breeders, internal-business partnerships, and external-business partnerships. This research aims to analyze broiler production and marketing in West Java Province. The research objectives are: (1 to analyze the performance of each broiler breeding farm; (2 to analyze the market structure of broilers; (3 to evaluate the marketing margin of broilers; and (4 to study market integration of broilers. The method used in this study was a survey method using structured questionnaires. The primary and secondary data used in this study were analyzed using the broiler breeding feasibility analysis, R/C ratio, marketing margin, and market integration analysis. The results showed that: (1 broiler breeding business in various patterns remains profitable and has an effective return to capital in moderate level, (2 both independent and plasma broiler breeders face an oligopolistic market structure, and the brokers also confronts oligopolistic market structure in dealing with the core enterprise through specific prices, and (3 retailers receive the biggest profit margin per unit of output, while the inter-regional wholesalers receive the largest total margin due to its large sales turnover, and (4 broiler markets are not integrated. In summary it can be concluded that broiler farming in various business patterns is profitable; however, and the marketing system is inefficient.Keywords: R/C ratio, market structure, marketing margins, market integration, broilerABSTRAKPengembangan komoditas broiler dapat menjadi basis pertumbuhan ekonomi dan pemerataan kesempatan kerja jika dikelola dengan baik. Paling tidak terdapat tiga pola usaha ternak broiler yakni usaha ternak mandiri, kemitraan usaha internal dan kemitraan usaha eksternal. Tujuan penelitian adalah (1 mmenganalisis kinerja usaha ternak broiler; (2

  12. Economic, ecological, and social performance of conventional and organic broiler production in the Netherlands.

    NARCIS (Netherlands)

    Bokkers, E.A.M.; Boer, de I.J.M.

    2009-01-01

    . In this study, we compared a conventional broiler production system keeping fast growing broilers with an organic broiler production system keeping slow growing broilers in the Netherlands, both managed by one person working a full time year (Full Time Equivalent, FTE). This comparison was based

  13. Escherichia coli in broiler chickens with airsacculitis

    Directory of Open Access Journals (Sweden)

    Leandro S. Machado

    2014-09-01

    Full Text Available ABSTRACT. Machado L.S., do Nascimento E.R., Pereira V.L.A., Abreu D.L.C., Gouvea R. & Santos L.M.M. 2014. [Escherichia coli in broiler chickens with airsacculitis.] Escherichia coli em frangos de corte com aerossaculite. Revista Brasileira de Medicina Veterinária, 36(3:261-265, 2014. Departamento de Medicina Veterinária Preventiva e Saúde Pública, Faculdade de Veterinária, Universidade Federal Fluminense, Rua Dr. Vital Brazil Filho 64, Vital Brazil, Niterói, RJ 24230-340, Brazil. E-mail: leandromachadovet@yahoo.com.br The Brazilian poultry industry grows each year and becomes increasingly representative in the production and export of products. The health care with poultry have accompanied and favored this evolution, however, respiratory agents that affect the weight and carcass quality, continue to cause great damage to the poultry industry. Airsacculitis is considered the main cause of total and partial condemnation of carcasses of broilers, and has been attributed to Mycoplasmosis mostly caused by Mycoplasma gallisepticum (MG and Mycoplasma synoviae (MS and Escherichia coli. The aim of this study was to relate the positivity of MG / MS and E. coli detected by PCR as a risk factor for airsacculitis in condemnation of broilers in Health Inspection Service. We studied 30 broiler poultry slaughtered in a slaughterhouse under Federal Sanitary Inspection, located in the State of Rio de Janeiro. 30 chickens were randomly collected from different lots and tracheas obtained in each PCR. DNA was extracted by phenol-chloroform method and amplified using pairs of “primer”specific for MG, MS and E. coli. Of the 30 chickens analyzed by PCR, 30% (9/30 had lesions in air sacs. None of the birds showed infection with MG and/or MS PCR, however 33.3% (3/9 birds were positive for airsacculitis iss gene from E.coli. E.coli found in broiler chickens that were negative for mycoplasma airsacculitis, implying the presence of such bacteria may be sufficient

  14. Campylobacter in Broiler Chicken and Broiler Meat in Sri Lanka: Influence of Semi-Automated vs. Wet Market Processing on Campylobacter Contamination of Broiler Neck Skin Samples

    Science.gov (United States)

    Kottawatta, Kottawattage S. A.; Van Bergen, Marcel A. P.; Abeynayake, Preeni; Wagenaar, Jaap A.; Veldman, Kees T.; Kalupahana, Ruwani S.

    2017-01-01

    Broiler meat can become contaminated with Campylobacter of intestinal origin during processing. The present study aimed to identify the prevalence of Campylobacter in broiler flocks and meat contamination at retail shops, and determine the influence of semi-automated and wet market processing on Campylobacter contamination of neck skin samples. Samples were collected from semi-automated plants (n = 102) and wet markets (n = 25). From each batch of broilers, pooled caecal samples and neck skin samples were tested for Campylobacter. Broiler meat purchased from retail outlets (n = 37) was also tested. The prevalence of Campylobacter colonized broiler flocks was 67%. The contamination of meat at retail was 59%. Both semi-automated and wet market processing resulted to contaminate the broiler neck skins to the levels of 27.4% and 48%, respectively. When Campylobacter-free broiler flocks were processed in semi-automated facilities 15% (5/33) of neck skin samples became contaminated by the end of processing whereas 25% (2/8) became contaminated after wet market processing. Characterization of isolates revealed a higher proportion of C. coli compared to C. jejuni. Higher proportions of isolates were resistant to important antimicrobials. This study shows the importance of Campylobacter in poultry industry in Sri Lanka and the need for controlling antimicrobial resistance. PMID:29186018

  15. Campylobacter in Broiler Chicken and Broiler Meat in Sri Lanka: Influence of Semi-Automated vs. Wet Market Processing on Campylobacter Contamination of Broiler Neck Skin Samples

    Directory of Open Access Journals (Sweden)

    Kottawattage S. A. Kottawatta

    2017-11-01

    Full Text Available Broiler meat can become contaminated with Campylobacter of intestinal origin during processing. The present study aimed to identify the prevalence of Campylobacter in broiler flocks and meat contamination at retail shops, and determine the influence of semi-automated and wet market processing on Campylobacter contamination of neck skin samples. Samples were collected from semi-automated plants (n = 102 and wet markets (n = 25. From each batch of broilers, pooled caecal samples and neck skin samples were tested for Campylobacter. Broiler meat purchased from retail outlets (n = 37 was also tested. The prevalence of Campylobacter colonized broiler flocks was 67%. The contamination of meat at retail was 59%. Both semi-automated and wet market processing resulted to contaminate the broiler neck skins to the levels of 27.4% and 48%, respectively. When Campylobacter-free broiler flocks were processed in semi-automated facilities 15% (5/33 of neck skin samples became contaminated by the end of processing whereas 25% (2/8 became contaminated after wet market processing. Characterization of isolates revealed a higher proportion of C. coli compared to C. jejuni. Higher proportions of isolates were resistant to important antimicrobials. This study shows the importance of Campylobacter in poultry industry in Sri Lanka and the need for controlling antimicrobial resistance.

  16. Campylobacter in Broiler Chicken and Broiler Meat in Sri Lanka: Influence of Semi-Automated vs. Wet Market Processing on Campylobacter Contamination of Broiler Neck Skin Samples.

    Science.gov (United States)

    Kottawatta, Kottawattage S A; Van Bergen, Marcel A P; Abeynayake, Preeni; Wagenaar, Jaap A; Veldman, Kees T; Kalupahana, Ruwani S

    2017-11-29

    Broiler meat can become contaminated with Campylobacter of intestinal origin during processing. The present study aimed to identify the prevalence of Campylobacter in broiler flocks and meat contamination at retail shops, and determine the influence of semi-automated and wet market processing on Campylobacter contamination of neck skin samples. Samples were collected from semi-automated plants ( n = 102) and wet markets ( n = 25). From each batch of broilers, pooled caecal samples and neck skin samples were tested for Campylobacter . Broiler meat purchased from retail outlets ( n = 37) was also tested. The prevalence of Campylobacter colonized broiler flocks was 67%. The contamination of meat at retail was 59%. Both semi-automated and wet market processing resulted to contaminate the broiler neck skins to the levels of 27.4% and 48%, respectively. When Campylobacter -free broiler flocks were processed in semi-automated facilities 15% (5/33) of neck skin samples became contaminated by the end of processing whereas 25% (2/8) became contaminated after wet market processing. Characterization of isolates revealed a higher proportion of C. coli compared to C. jejuni . Higher proportions of isolates were resistant to important antimicrobials. This study shows the importance of Campylobacter in poultry industry in Sri Lanka and the need for controlling antimicrobial resistance.

  17. Isolation of Pasteurella multocida from broiler chickens

    Directory of Open Access Journals (Sweden)

    Sri Poernomo

    1996-06-01

    Full Text Available Pasteurella multocida, the etiological agent of fowl cholera, was isolated from five, 32 days oldbroilerchickens in the late of 1992. The chickens were from a farm located in Bogor area, raised in cages and each flock consisted of 1,550 broilers . Therewere 230 birds, aging from 28-31 days old, died with clinical signs of lameness and difficulty in breathing. Serological test of the isolate revealed serotype Aof Carter classification . To prove its virulences, the isolate was then inoculated into 3 mice subcutaneously. The mice died less then 24 hours postinoculation and P. multocida can be reisolated . The sensitivity test to antibiotics and sulfa preparations showed that the isolate was sensitive to ampicillin, doxycyclin, erythromycin, gentamycin, sulfamethoxazol-trimethoprim and baytril, but resistance to tetracyclin, kanamycin and oxytetracyclin. This is the first report of P. multocida isolation in broiler chickens in Indonesia, and it is intended to add information on bacterial diseases in poultry in Indonesia.

  18. Use of mannanoligosaccharides in broiler feeding

    Directory of Open Access Journals (Sweden)

    JS Flemming

    2004-09-01

    Full Text Available A study with 2,400 broilers was carried out to compare the effect of the use of mannanoligosaccharides, Saccharomyces cerevisiae cell wall or growth promoter (Olaquindox in the diet on broiler. Diets were based on corn and soybean meal. A completely randomized experimental design was used, and the obtained data were evaluated by analysis of variance and test of Tukey at a level of 5%. The following parameters were measured: feed intake, daily weight gain, feed conversion ratio, and mortality. It was concluded that the effect of the inclusion of mannanoligosaccharides in the diet on the studied parameters was significantly higher as compared to the inclusion of cell wall or to the control diet, but the effect was not different as compared to the inclusion of growth promoter.

  19. Assessment of the Nutrient Contents of Finished Broiler Starter and ...

    African Journals Online (AJOL)

    Similarly, all test broiler starter diets had superior (P<0.05) CP and amino acids profile compared with the NRC recommendation for broilers aged 3-6 weeks. ... It was opined that the limitation has the potential of affecting the performance of birds, especially if not compensated for by other amino acids that were surplus in the ...

  20. Performance of broiler chickens fed South African sorghum-based ...

    African Journals Online (AJOL)

    Two experiments were conducted to determine the influence of sorghum variety and xylanase on performance of broiler chickens. In Experiment 1A, a total of 240 day-old Ross broiler chickens were assigned to a 2 (sex) × 3 (sorghum variety) × 2 (with or without xylanase) factorial arrangement in a completely randomized ...

  1. Growth and carcass characteristics of finishing broilers on acidified ...

    African Journals Online (AJOL)

    The objective of this study was to evaluate the effects of inclusion of acidifer in a blood meal based diet on broiler performance and carcass characteristics. One hundred and eighty un-sexed 4-week old broiler chicks raised on a common starter diet were randomly distributed into four experimental diets of 3 replicates and ...

  2. Identification of critical points of thermal environment in broiler production

    Directory of Open Access Journals (Sweden)

    AG Menezes

    2010-03-01

    Full Text Available This paper describes an exploratory study carried out to determine critical control points and possible risks in hatcheries and broiler farms. The study was based in the identification of the potential hazards existing in broiler production, from the hatchery to the broiler farm, identifying critical control points and defining critical limits. The following rooms were analyzed in the hatchery: egg cold storage, pre-heating, incubator, and hatcher rooms. Two broiler houses were studied in two different farms. The following data were collected in the hatchery and broiler houses: temperature (ºC and relative humidity (%, air velocity (m s-1, ammonia levels, and light intensity (lx. In the broiler house study, a questionnaire using information of the Broiler Production Good Practices (BPGP manual was applied, and workers were interviewed. Risk analysis matrices were build to determine Critical Control Points (CCP. After data collection, Statistical Process Control (SPC was applied through the analysis of the Process Capacity Index, using the software program Minitab15®. Environmental temperature and relative humidity were the critical points identified in the hatchery and in both farms. The classes determined as critical control points in the broiler houses were poultry litter, feeding, drinking water, workers' hygiene and health, management and biosecurity, norms and legislation, facilities, and activity planning. It was concluded that CCP analysis, associated with SPC control tools and guidelines of good production practices, may contribute to improve quality control in poultry production.

  3. A comparison of risk assessments on Campylobacter in broiler meat

    DEFF Research Database (Denmark)

    Nauta, Maarten; Hill, Andy; Rosenquist, Hanne

    2009-01-01

    In recent years. several quantitative risk assessments for Campylobacter in broiler meat have been developed to support risk managers in controlling this pathogen. The models encompass some or all of the consecutive stages in the broiler meat production chain: primary production, industrial proce...

  4. Supplementation of broiler feed with leaves of Vernonia amygdalina ...

    African Journals Online (AJOL)

    Anticoccidial efficacy of the herbal mixture of Vernonia amygdalina (VA 10%) and Azadirachta indica (AI 10%) was tested against naturally infected broiler coccidiosis. A total of 100 four week old broilers naturally infected with coccidiosis were divided into five treatment groups based on the number of coccidian oocyst they ...

  5. Serotyping of Salmonella Isolates from Broiler Vertical Integrations in Colombia

    Science.gov (United States)

    This study analyzed 106 Salmonella isolates from different points in broiler vertical integrations of two important poultry areas of Colombia. It was possible to identify the presence of Salmonella in five categories: breeder farm (17.9%), hatchery (6.6 %), broiler farm (38.7 %), processing plant (9...

  6. Broiler farm size in relation tot sustainability aspects

    NARCIS (Netherlands)

    Horne, van P.L.M.; Leenstra, F.R.

    2010-01-01

    In the Netherlands the number of broiler farms has been reduced by 50%, while farm size doubled between 1990 and 2008. A debate on the positive and negative aspects of large farms emerge. Many entrepreneurs in the broiler sector use increase in scale as strategy to reduce production cost. However, a

  7. Immunological differences between layer- and broiler-type chickens

    NARCIS (Netherlands)

    Koenen, M.E.; Boonstra-Blom, A.G.; Jeurissen, S.H.M.

    2002-01-01

    In commercial poultry husbandry, alternatives for the use of antibiotics and vaccines are under investigation, which preferably have to be applicable for both layer- and broiler-type chickens. There are indications that the defense mechanisms vary between layer- and broiler-type chickens. Therefore,

  8. Dietary balanced protein in broiler chickens. 2. An economic analysis

    NARCIS (Netherlands)

    Eits, R.M.; Giesen, G.W.J.; Kwakkel, R.P.; Verstegen, M.W.A.; Hartog, den L.A.

    2005-01-01

    1. An economic model was developed that calculates economic optimal dietary balanced protein (DBP) contents for broiler chickens, based on performance input and prices of meat and feed. 2. Input on broiler responses to DBP content (growth rate, feed conversion, carcase yield and breast meat yield)

  9. A Trial Diagnosis of Ascites Syndrome in Broiler Chickens.

    Science.gov (United States)

    Liu, Wuyi

    Ascites syndrome is currently a serious disease issue for the global chicken industry. Ascites syndrome is a metabolic disorder frequently found in fast growing broilers including abdominal distention and standing fluid collection in chicken abdomen. It is one of the most common nutrition metabolic disorders. In this study, the clinical diagnosis technology of broiler ascites symptoms mainly included the trial inquiry of feeders and administrators, local observation, detection of farm gas and faeces and pathological autopsy. The study investigated the case of broiler ascites syndrome of local commercial broiler chickens at the age of 4-5 weeks to reduce outburst of ascites syndrome in broiler chickens. Through the trial clinical diagnosis of broiler ascites symptoms and pathological autopsy and observation, it came to the definite diagnosis of broiler ascites. Subsequent investigation found that the rearing houses were closed and sealed with poor ventilation and a high breeding density and much ammonia gas. Under the comprehensive management and drug treatments, there were 800 chickens found ill and later came back to normal from illness after the treatments, except for the death of 38 sick chickens. The appetite and drink of broiler chicken came to normal gradually.

  10. Lighting during grow-out and Salmonella in broiler flocks

    Science.gov (United States)

    Lighting is used during broiler grow-out to modify bird behavior to reach the goals of production. The protocols for lighting intensity vary. In a field project, we evaluated if the lighting protocol impacts the burden of Salmonella in grow-out broiler flocks. Conventional grow-out flocks reared ...

  11. Performance And Economic Analysis Of Broiler Starter Fed Dried ...

    African Journals Online (AJOL)

    A 28-day feeding trial involving 300, day-old Hubbard broilers was carried out in a completely randomized design to evaluate the performance and economic analysis of broiler starters fed dried rumen digesta meal at dietary levels of 0, 2.5, 5.0, 7.5 and 10% respectively. Feed intake, body weight gain and feed conversion ...

  12. Abrupt or gradual increases in photoperiod for broiler breeders ...

    African Journals Online (AJOL)

    Broiler breeders transferred from closed rearing to curtain-sided adult accommodation (similar to that in which a large proportion of broiler breeders are housed) respond similarly to abrupt and gradual increases in daylength as do birds maintained throughout in controlled environment accommodation, and modern ...

  13. Detection and isolation of salmonella in broiler chickens around the ...

    African Journals Online (AJOL)

    Crop contents may serve as important sources of Salmonella carcass contamination within processing plants. This study, evaluated the effect of feed withdrawal before the slaughtering time on Salmonella existence in the crops of broilers from ten commercial broiler flocks reared in individual houses. Crops were collected ...

  14. Assessment of the nutrient contents of broiler starter and finisher ...

    African Journals Online (AJOL)

    Although, estimated chemical scores of analyzed diets revealed a generally high trend, methionine plus cystine appeared limiting in the broiler starter diets compared with recommended levels for birds aged 1-3 weeks; threonine, valine or isoeucine may be limiting in some broiler finisher diets when compared with ...

  15. Digestibility And Hematological Parameters Of Broiler Chickens Fed ...

    African Journals Online (AJOL)

    An experiment was carried out to determine the effect of replacing synthetic lysine (SL) with blood meal (BM) on apparent nutrients digestibility and hematological responses of broiler chickens. One hundred and fifty (150) unsexed Anak broiler chicks were used. There were five diets with diet (T1) containing 0.10% SL and ...

  16. Use of natural zeolite-supplemented litter increased broiler production

    African Journals Online (AJOL)

    The aim of this study was to ascertain the influence of natural zeolite, consisting mainly of clinoptilolite and mordenite, as a component of the litter material in broiler houses on the performance of the broilers and on some litter characteristics. Live weight gain, feed consumption, feed efficiency, viability and leg and body ...

  17. Use of natural zeolite-supplemented litter increased broiler production

    African Journals Online (AJOL)

    smyo

    Abstract. The aim of this study was to ascertain the influence of natural zeolite, consisting mainly of clinoptilolite and mordenite, as a component of the litter material in broiler houses on the performance of the broilers and on some litter characteristics. Live weight gain, feed consumption, feed efficiency, viability and leg and ...

  18. Biomarkers and weight changes in broiler chicks ( Gallus domesticus )

    African Journals Online (AJOL)

    Biomarkers and weight changes in broiler chicks ( Gallus domesticus ) exposed to livestock feed containing residues of phostoxin and actellic pesticides. ... The results of the biochemical analysis of the blood samples of the broilers chicks exposed to sublethal doses of phostoxin and actellic over a 49 day period of exposure ...

  19. Comparison of broiler performance, carcass yields and intestinal ...

    African Journals Online (AJOL)

    This study was conducted to analyze the effects of transgenic glyphosate-tolerant soybeans on the performance, carcass yields and intestinal microflora of broiler chickens. Three hundred and sixty oneday- old Abor Aerec broilers were randomly divided into two dietary treatments, adding genetically modified (GM) ...

  20. A comparison of risk assessments on Campylobacter in broiler meat

    NARCIS (Netherlands)

    Nauta, M.; Hill, A.; Rosenquist, H.; Brynestad, S.; Fetsch, A.; Logt, van der P.; Fazil, A.; Christensen, B.; Katsma, W.E.A.; Borck, B.; Havelaar, A.

    2009-01-01

    In recent years. several quantitative risk assessments for Campylobacter in broiler meat have been developed to support risk managers in controlling this pathogen. The models encompass some or all of the consecutive stages in the broiler meat production chain: primary production, industrial

  1. A comparison of risk assessments on Campylobacter in broiler meat.

    NARCIS (Netherlands)

    Nauta, M.; Hill, A.; Rosenquist, H.; Brynestad, S.; Fetsch, A.; van der Logt, P.; Fazil, A.; Christensen, B.; Katsma, E.; Borck, B.; Havelaar, A.H.|info:eu-repo/dai/nl/072306122

    2009-01-01

    In recent years, several quantitative risk assessments for Campylobacter in broiler meat have been developed to support risk managers in controlling this pathogen. The models encompass some or all of the consecutive stages in the broiler meat production chain: primary production, industrial

  2. Performance of broiler chickens fed neem ( Azadirachta indica ) leaf ...

    African Journals Online (AJOL)

    One hundred and ninety-two day-old marshal broilers were used in an eight weeks feeding trial to evaluate the effects of neem (Azadirachta indica) leaf meal on growth performance and haematological parameters of broiler chickens. The birds were randomly assigned into four (4) groups of forty eight (48) birds each in a ...

  3. Response of finishing broiler chickens to supplemental Neem ...

    African Journals Online (AJOL)

    An eight weeks feeding trial was conducted to investigate the effects of feeding diets containing Neem Leaf Meal (NLM), Garlic Meal (GM) and their combinations (NLM +GM) on oocyst count, bacteria count and gut morphology of finishing broiler chickens. A total of 180 day-old Cobb broiler chickens were divided into twelve ...

  4. ( Jatropha curcas ) on the gut morphology of broilers

    African Journals Online (AJOL)

    In a study conducted to evaluate the effect of Jatropha curcas leaf extract on the gut morphology of broiler chickens, one hundred and fifty day old Arbor Acre broiler chicks were randomly allocated to five treatments, each replicated five times, with six birds per replicate over a period of forty two days. The birds were allocated ...

  5. Effect Of Palm Oil Supplementation On The Performance Of Broiler ...

    African Journals Online (AJOL)

    A 21-day feeding trial was conducted to evaluate the effect of palm oil supplementation on the performance of broiler starter birds fed palm kernel meal based diets. One hundred and twenty (120) one-week-old Anak broilers were randomly assigned to five (5) treatment diets, each treatment diet was replicated four times at ...

  6. Growth performance and immunity status of starter broiler birds ...

    African Journals Online (AJOL)

    This study was conducted to investigate the effects of feeding diets containing Neem Leaf Meal (NLM), Garlic Meal (GM) and their combinations (NLM + GM) on growth performance and serum parameters of starter broiler birds. A total of 180 day-old Cobb broiler chickens were divided into twelve groups of fifteen chicks with ...

  7. Parameters for quantification of hunger in broiler breeders.

    NARCIS (Netherlands)

    Jong, de I.C.; Voorst, van A.S.; Blokhuis, H.J.

    2003-01-01

    The commercial restricted feeding programme of broiler breeders has a major negative effect on welfare, as the birds are continuously hungry. Objective parameters of hunger are needed to evaluate new management or feeding systems that may alleviate hunger and thus improve broiler breeder welfare.

  8. Performance and internal organ characteristics of finisher broilers ...

    African Journals Online (AJOL)

    A 28-day feeding trial was carried out to evaluate the effect of replacing maize as a major source of energy with wild yam (Anchomanes difformis) meal (WYM) in the diets of finisher broiler. One hundred and eighty (180) finisher broilers were fed on five experimental diets formulated such that the maize in diet 1 (control) was ...

  9. A Comparative Analysis of Profitability of Broiler Production Systems ...

    African Journals Online (AJOL)

    This study investigated the cost implications of raising broilers under the battery cage and deep litter system of poultry production. The data used in the study were obtained from a cross-sectional survey of broiler farmers in Edo State from October– December, 2013. A multi-stage sampling process was used to select the 211 ...

  10. Body weight and carcass characteristics of broilers fed different ...

    African Journals Online (AJOL)

    Body weight and carcass characteristics of broilers was investigated in a feeding experiment using 135 broilers of Abor acre strain in a completely randomised design that lasted for eight weeks at the Teaching and Research farm, Department of Agricultural education, Federal College of Education (Technical) Akoka Lagos ...

  11. Effects of folic acid supplementation on the performance of broiler ...

    African Journals Online (AJOL)

    Sixty (60) day- old broiler chicks were used to investigate the effects of graded levels of folic acid supplementation on the performance of broiler chickens. The study was carried out using complete randomized design. Commercial starter and finisher diets were used for the experiment which lasted for eight weeks. The folic ...

  12. Working for food under conditions of varying motivation in broilers

    NARCIS (Netherlands)

    Bokkers, E.A.M.; Koene, P.; Rodenburg, T.B.; Zimmerman, P.H.; Spruijt, B.M.

    2004-01-01

    Broiler chickens, Gallus gallus domesticus, have been selected for rapid weight gain and appear to be continously hungry. If this is so, then energy that broilers invest in obtaining food should be insensitive to their level of feed restriction. We tested this hypothesis by measuring the maximum

  13. Biosensor immunoassay for flumequine in broiler serum and muscle

    NARCIS (Netherlands)

    Haasnoot, W.; Gercek, H.; Cazemier, G.; Nielen, M.W.F.

    2007-01-01

    Flumequine (Flu) is one of the fluoroquinolones most frequently applied for the treatment of broilers in The Netherlands. For the detection of residues of Flu in blood serum of broilers, a biosensor immunoassay (BIA) was developed which was fast (7.5 min per sample) and specific (no cross-reactivity

  14. Sexual dimorphism in the growth pattern of broilers under different ...

    African Journals Online (AJOL)

    Two hundred and seventy day old broiler chicks were randomly distributed among three dietary treatments (iso-nitrogenous high and low energy straight-run diets and a conventional broiler diet) and two housing conditions (the cage and deep litter) to study the comparative growth patterns between the male and female ...

  15. Optimal interventions to control campylobacter in broilers in Denmark

    DEFF Research Database (Denmark)

    Rosenquist, Hanne; Sommer, Helle Mølgaard; Bodil Hald, Anna

    In a multi disciplinary project we have evaluated interventions against Campylobacter in the broiler production chain. Taking into account risk reduction, costs, practicability and public acceptance of decontamination, it was concluded that at present the optimal control measure for the Danish si...... situation is screening broiler houses with fly nets....

  16. Serum biochemical indices of Finisher Broiler Chickens fed diets ...

    African Journals Online (AJOL)

    A 4 week feeding trial was conducted using 180 five-week old Hubbard broiler chickens to determine the effect of feeding variously processed roselle(Hibiscus sabdariffa) seeds on serum biochemical indices with a view to determining the potential of roselle seed as an alternative to soybeans. Five broiler finisher diets were ...

  17. soya meal or cottonseed meal on broiler production.

    African Journals Online (AJOL)

    Effect of meals of sweat potato and cassava varieties formulated with soya meal or cottonseed meal on broiler ... Growing and finishing chickens consumed more of the soyabean- supplemented diets than diets containing cottonseed meal as ..... sweet potato and a protein supplement to broiler and crossbred poultry. Papua ...

  18. Performance of broiler chickens fed diets supplemented with feed ...

    African Journals Online (AJOL)

    Avizyme 1500TM) on the performance and nutrient digestibility by broiler finishers was investigated. A total of 120 d-old broiler chickens was assigned to four treatments each having two replicates of 15 birds in a 2 x 2 factorial block design.

  19. Field study on broilers' first-week mortality

    NARCIS (Netherlands)

    Yassin, H.; Velthuis, A.G.J.; Boerjan, M.; Rielt, van J.

    2009-01-01

    In the Dutch poultry meat production chain, first week mortality (FWM) of the chicks is an important measure to quality and is therefore highly related to the price of the chicks that the broiler farm has to pay to the hatchery. Therefore, next to the total number of broiler eggs produced per hen

  20. Response of broiler chickens to feed supplemented with claybased ...

    African Journals Online (AJOL)

    An eight week study was carried out to evaluate the effects of MFeed®, a nanotechnology growth promoter as feed additive in the diets of broiler chickens. Two hundred, day old Marshal broiler chicks were allotted in a completely randomised design to five dietary treatments supplemented with MFeed® at 0, 1, 2, 3, 4 and 5 ...

  1. Performance, carcass and blood indices of broiler chickens fed ...

    African Journals Online (AJOL)

    The suitability of graded levels of sun-dried raw wild cocoyam (Colocasia esculenta (L.) Schott) corms as partial replacement for maize in the diet of finishing broiler chickens was carried out in a feeding trial that lasted for four weeks. One hundred and twenty (120) four weeks old broilers were used. . The birds were ...

  2. Effect of effective microorganisms on broiler chicken performance ...

    African Journals Online (AJOL)

    A study was conducted between January and March 2001 to assess the effects of Effective Microorganisms (EM) as feed additive in broiler chicken production on growth performance. The experiment involved 210 day-old broiler chicks which were randomly allocated to 14 pens of 15 birds each. There were seven ...

  3. Organsweight and performance characteristics of broiler chickens ...

    African Journals Online (AJOL)

    Key Words: Broiler chickens, burning, flames and fumes, organ weights and performance, simulated crude petroleum. La performance des poulets de chair exposé aux flammes et aux fumées de la combustion du pétrole brut à des distances variables au cours d'une période quotidienne de 16 heures a été évaluée pendant ...

  4. First week nutrition for broiler chickens

    OpenAIRE

    Lamot, David

    2017-01-01

    During the first week of life, broiler chickens undergo various developmental changes that are already initiated during incubation. Ongoing development of organs such as the gastro- intestinal tract and the immune system may affect the nutritional requirements during this age period. Despite the residual yolk that is available at hatch and that may provide nutritional support during the first days after hatch, the growth performance may be affected by the time in between hatch and first feed ...

  5. Campylobacter contamination and the relative risk of illness from organic broiler meat in comparison with conventional broiler meat

    DEFF Research Database (Denmark)

    Rosenquist, Hanne; Boysen, Louise; Krogh, Anne Louise

    2013-01-01

    Danish organic broiler meat, represented by carcasses sampled at the end of processing after chilling, was more frequently contaminated with thermotolerant Campylobacter spp. than conventional broiler carcasses; the yearly mean prevalence being 54.2% (CI: 40.9-67.5) for organic and 19.7% (CI: 14....

  6. Campylobacter contamination and the relative risk of illness from organic broiler meat in comparison with conventional broiler meat.

    Science.gov (United States)

    Rosenquist, Hanne; Boysen, Louise; Krogh, Anne Louise; Jensen, Annette Nygaard; Nauta, Maarten

    2013-04-01

    Danish organic broiler meat, represented by carcasses sampled at the end of processing after chilling, was more frequently contaminated with thermotolerant Campylobacter spp. than conventional broiler carcasses; the yearly mean prevalence being 54.2% (CI: 40.9-67.5) for organic and 19.7% (CI: 14.8-24.7) for conventional carcasses. Campylobacter jejuni was the most frequently isolated species. The difference in prevalence was obvious in all quarters of the year. Contamination of organic and conventional broiler carcasses was more likely to occur in the warmer summer months, in this case in the third quarter, as also documented for conventional broiler flocks. When contaminated, the mean concentration of Campylobacter on neck skin samples of organic and conventional carcasses was not significantly different (P=0.428); 2.0±0.65 log 10 cfu/g and 2.1±0.93 log 10 cfu/g, respectively. Assessing the relative risk of becoming ill following exposure to Campylobacter on conventional or organic broiler meat indicated that the risk per serving from organic carcasses was 1.7 times higher than that of conventional carcasses. The higher risk of illness from organic broiler carcasses compared with conventional broiler carcasses emphasizes the importance of implementing control measures in organic broiler production. Copyright © 2013 Elsevier B.V. All rights reserved.

  7. Wheat starch digestion rate affects broiler performance.

    Science.gov (United States)

    del Alamo, A Gutierrez; Verstegen, M W A; Den Hartog, L A; de Ayala, P Perez; Villamide, M J

    2009-08-01

    Two experiments were conducted to determine the differences in starch digestion rate (KDS) among wheats from different cultivars and origins and to verify if chickens would benefit from a certain digestion rate of starch. In the first experiment, 192 chickens (21 d) were assigned to 4 diets containing 55% of each wheat sample (3 cultivars, one of them from 2 origins). Starch and protein digestion were calculated from the remaining starch and protein in 4 segments of the small intestine and in excreta, using chromic oxide as a marker. Mean retention time was measured in each segment, which enabled calculations of digestion rates. In the second experiment, 2,600 chickens were assigned to 5 isoenergetic and isonitrogenous diets (with KDS from 1.80 to 2.56 h(-1)) and growth performance was determined (1 to 34 d). In 3 treatments, dietary starch was provided each by the wheat cultivars (same origin), whereas in the other 2 treatments, 25 and 50% of the wheat starch with the highest KDS was substituted by pea starch. Clostridium perfringens and Lactobacillus in the cecal chyme and glucose in the blood (glycemic index) were measured in broilers at d 19 and 25, respectively. Starch was gradually digested along the small intestine, mainly in the jejunum (48.5 and 80.4% at proximal and distal jejunum) where the largest differences among wheat samples were found. Starch digestion rate varied with origin (from 1.96 to 2.56 h(-1)) and cultivar (from 2.17 to 2.56 h(-1)). Crude protein digestion rate (average 2.21 h(-1)) was not affected by either cultivar or origin. Broiler growth and feed conversion ratio improved in a quadratic way with KDS. The maximum broiler performance was observed with KDS around 2.2 h(-1). Blood glucose response (glycemic index) was not affected by KDS; therefore, it cannot be used to predict broiler performance. In conclusion, the rate of starch digestion varies among wheats, depending on both genetic and environmental conditions of the grain, and

  8. Implementation of the Welfare Quality broiler assessment protocol – final report : overview of outcome-based measurement of broiler welfare and a general discussion on the Welfare Quality broiler assessment protocol

    NARCIS (Netherlands)

    Jong, de I.C.; Gunnink, H.; Hindle, V.A.

    2015-01-01

    In the current report, two topics related to our study on the implementation of the Welfare Quality® broiler assessment protocol are discussed. First, animal-based measures for broiler welfare, currently included in the Welfare Quality® broiler assessment protocol, are discussed with respect to

  9. Improved Performance of Broilers and Broiler Breeders Associated with an Amended Vaccination Program Against Reovirosis.

    Science.gov (United States)

    De Herdt, Peter; Broeckx, Marlies; Van Driessche, Filip; Vermeiren, Bart; Van Den Abeele, Geert; Van Gorp, Stefaan

    2016-12-01

    A vertically integrated monitoring program was set up for breeders hatched in 2013 and their offspring to detect differences in performance related to the reovirus vaccination schedule. Within the same organization in Belgium, 17 breeder flocks were vaccinated with one dose of live and one dose of inactivated reovirus vaccine, while 14 flocks received two doses of inactivated vaccine without live priming. The hatchability of the eggs produced by these birds was examined. Further, the daily growth, feed conversion, mortality, slaughterhouse condemnation, production index, and antibiotic use were monitored in 110 broiler flocks derived from the breeders. All gathered data were examined statistically. In eggs obtained from breeders vaccinated twice with inactivated reovirus vaccine, a significant 2.88% higher hatchability rate was observed. The progeny broiler flocks of these breeders showed a significant 18.2% lower mortality during the fattening period. Although not statistically significant, the slaughterhouse condemnation rate was 10.1% lower as well. The results may indicate that-under the epidemiologic conditions of this study-double administration of inactivated reovirus vaccine in broiler breeders can at least contribute to higher hatchability of breeder eggs and lower broiler mortality.

  10. Persistence of vancomycin-resistant enterococci (VRE) in broiler houses after the avoparcin ban

    DEFF Research Database (Denmark)

    Heuer, Ole Eske; Pedersen, Karl; Jensen, Lars Bogø

    2002-01-01

    The glycopeptide growth promoter avoparcin was banned from animal production in the EU in 1997 due to concern for the spread of vancomycin-resistant enterococci (VRE) from food animals to humans. In recent Norwegian and Danish studies, extensive occurrence of VRE on broiler farms and in broiler......, and disinfection of the houses between rotations, and two consecutive broiler flocks from each house were sampled by taking cloacal swabs from the broilers at the time of slaughter. A total of 69 vancomycin-resistant Enterococcus faecium isolates obtained from broiler flocks and broiler houses were subjected......-isolates from different broiler houses and from flocks reared in different houses appeared to be genetically unrelated. These findings indicated that VRE was transmitted between consecutive broiler flocks by clones of resistant. bacteria surviving in the broiler houses despite cleaning and disinfection between...

  11. Microbial Phytase and Phosphorus Utilization by Broiler Chickens

    Directory of Open Access Journals (Sweden)

    Martin Kliment

    2012-05-01

    Full Text Available The aim of study was to investigate the mathematical and statistical assesment of the micorbial 6-phytase efficacy on phosphorus utilization at broiler chickens Cobb 500. Broiler chickens fed commercial feed mixtures based on soyabean-maize meal. Each feed mixture was fed ad libitum to chickens in boxes in commercial poultry farm. The trial consited of three groups of broiler chickens, one control group (CG and two trial groups, in which were broiler chickens fed by feed mixtures with decreased phosphorus content (TG1 and with microbial 6-phytase (TG2. A body weight of chickens at the end of the trial (42 day was 1900.0 g compared with 1883,0 g (TG1 and 1827.0 g (CG with not statistically significant differences (P≥0.05. Phosphorus, calcium and magnesium content in blood serum of broiler chickens in every group was not staticstically significant (P≥0.05. Phosphorus content in broiler chickens excreta was most higher in in control group (4.2556 g/kg in comparison with trial group (2.0911 g/kg were was microbial 6-phytase added and in trial group (3.1851 g/kg were was phosphorus content in feed mixtures decreased. In addition we concluded that microbial 6-phytase. Phytase addition into feed mixtures has not negative effect on broiler chickens growth ability and health, and helped to better utilization of phytate phosphorus from feed mixtures in relation to excreted phosphorus.

  12. Specialized protein products in broiler chicken nutrition: A review

    Directory of Open Access Journals (Sweden)

    Sleman S.M. Beski

    2015-06-01

    Full Text Available In poultry nutrition, most attention is given to protein products, due to the importance of protein as a major constituent of the biologically active compounds in the body. It also assists in the synthesis of body tissue, for that renovation and growth of the body. Furthermore, protein exists in form of enzymes and hormones which play important roles in the physiology of any living organism. Broilers have high dietary protein requirements, so identification of the optimum protein concentration in broiler diets, for either maximizing broiler performance or profit, requires more knowledge about birds' requirements for protein and amino acids and their effects on the birds' growth performance and development. It also requires knowledge about the protein sources available that can be used in poultry diets. The broad aim of this review is to highlight the importance of some of the available high-quality specialized protein products of both animal and plant origins which can be explored for feeding broiler chickens. Minimization of the concentration of anti-nutritional factors (ANFs and supplementation with immunologically active compounds are the main focus of gut health-promoting broiler diets. These diet characteristics are influenced by feed ingredient composition and feed processing. The general hypothesis is that these protein products are highly digestible and devoid of or contain less ANFs. Feeding these products to broiler chicks, especially at an earlier age, can assist early gut development and digestive physiology, and improve broiler growth performance and immunity.

  13. A retrospective study on salmonella infection in Danish broiler flocks

    DEFF Research Database (Denmark)

    Angen, Øystein; Skov, M. N.; Chriél, Mariann

    1996-01-01

    -year period from 1992 to 1993 in Denmark. The AM database contains information collected by the ante-mortem veterinarians, from the slaughterhouses, and from the salmonella examinations carried out at the National Veterinary Laboratory. The epidemiological unit was the individual broiler flock......A retrospective longitudinal study was conducted to identify risk factors associated with Salmonella enterica infection in Danish broiler production. The study was based on information in the antemortem database (AM database) where data were available for all broiler Becks slaughtered over the 2...

  14. Densitometric and biochemical values of broiler tibias at different ages.

    Science.gov (United States)

    Barreiro, F R; Sagula, A L; Junqueira, O M; Pereira, G T; Baraldi-Artoni, S M

    2009-12-01

    The objective of this experiment was to determine the normal values of bone radiographic density (BRD) by using the optical densitometry in radiographic images and the biochemical values represented by serum calcium, ash percentage, and minerals (calcium, phosphorus, and magnesium) from tibia ash of Cobb broilers at 8, 22, and 43 d of age. A total of 14 broilers were used for densitometric analysis, and 15 were used for biochemical dosages. The BRD values increased (P aviculture, allowing us to compare, subsequently, pathological and physiological values or results of broilers fed with different diets.

  15. Influence of a probiotic on broiler performance

    Directory of Open Access Journals (Sweden)

    Letícia Cardoso Bitterncourt

    2011-12-01

    Full Text Available The objective of the present study was to evaluate the influence of a probiotic product (composition: Lactobacillus acidophillus (3.5 × 10(11 CFU, Streptcoccus faecium (3.5 × 10(11 CFU and Bifidobacterium bifidum (3.5 × 10(11 CFU on broiler performance. A total of 1200 one-day-old broilers were reared until 42 days of age, and distributed in a completely randomized experimental design with 3 treatments (antibiotic, probiotic and control with 10 replicates of 40 birds each. Weight gain, feed intake, feed conversion ratio and mortality were evaluated. Concerning weight gain, in the periods of 0-7 and 0-14 days of age, the group fed the antibiotic product presented higher values as compared with the other treatments. However, in the periods of 0-21, 0-28 and 0-35 days of age, birds fed the antibiotic presented higher weight gain only in relation to the control group. Feed intake differences were detected only in the initial period of 0-7 days of age, with the group fed the antibiotic product presenting higher feed intake as compared with that fed the probiotic product, although these groups were not different from the control group. No statistical difference was detected in feed conversion ratio among treatments in any of the evaluated age intervals. Mortality was different only in the period of 0-14 days of age, which was higher in the control group as compared with that of the birds fed the probiotic product, but it was not different from the group receiving the antibiotic. Treatment with probiotic product containing Lactobacillus acidophillus, Streptococcus faecium and Bifidobacterium bifidum does not affect broiler performance.

  16. Prevalence of subclinical coccidiosis in broiler farms in Turkey.

    Science.gov (United States)

    Karaer, Zafer; Guven, Esin; Akcay, Aytac; Kar, Sirri; Nalbantoglu, Serpil; Cakmak, Ayse

    2012-03-01

    The presence of Eimeria spp. oocysts in fecal samples collected from 1,108 broiler houses in six regions, representing about 12% of all broiler farms in Turkey, was studied using the modified McMaster method. The age of the chickens in the 1,108 pens varied from 1 to 50 days. Oocysts were found in 602 (54.3%) of these broiler houses, and the mean OPG (oocysts per gram of feces) in those samples was 36,498.7 (50-952,000). No indication of clinical coccidiosis or other clinically evident infection or wide mortality was encountered in any of the pens studied. Further study showed that the age of the chickens, the occurrence of diarrhea on the houses and the density of broiler breeding in the area correlated with subclinical coccidiosis prevalence.

  17. Effect of nucleotides on broiler performance and carcass yield

    Directory of Open Access Journals (Sweden)

    VC Pelícia

    2010-03-01

    Full Text Available This study aimed at evaluating the effect of nucleotides on the performance and carcass yield of broilers fed diets with no antibiotic growth promoters (AGP, anticoccidials, or animal feedstuffs. In the trial, 600 Ross 308 male broilers were distributed in a completely randomized experimental design into six treatments with four replicates of 25 birds each. Treatments consisted of a control diet (CD, CD + AGP, CD + 0.04%, CD + 0.05%, CD + 0.06%, and CD + 0.07% nucleotides. The experimental diets did not contain anticoccidials, and birds were vaccinated against coccidiosis at three days of age. No significant differences were detected among broilers submitted to the different treatments in none of the studied parameters. Under the conditions of this experiment, diets supplemented with nucleotides did not influence broiler performance or carcass yield at 42 days of age, and were not different from the feeds not containing any additive or with AGP.

  18. Performance and carcass characteristics of broilers fed boiled ...

    African Journals Online (AJOL)

    Performance and carcass characteristics of broilers fed boiled cowpea (Vigna unguiculata L Walp) and or black common bean (Phaseolus vulgaris) meal diets. HF Defang, A Teguia, J Awah-Ndukum, A Kenfack, F Ngoula, F Metuge ...

  19. Effects of a novel carbohydrate fraction on broiler performance and ...

    African Journals Online (AJOL)

    p2492989

    based feed ingredient (natural carbohydrate fraction (NCF) isolated from a specific strain of yeast) on broiler chickens, and to examine its mode of action. The trial was set up as a complete randomized design with three treatments and eight.

  20. Broiler-Housing Conditions Affect the Performance

    Directory of Open Access Journals (Sweden)

    D Mesa

    Full Text Available ABSTRACT In the last decades animal production has considerably increased worldwide to sustain an ever-growing human population. Among animal reared for consumption purposes, chickens are undoubtedly one of the most successful, mainly due to their rapid growth rate. The development of broiler farming has been accompanied in recent years by a substantial attention to animal welfare. This study is aimed at assessing the effects of different housing conditions on both feed conversion ratio and mortality of male broiler flocks through a large-scale study (more than 100 million birds involving 977 farms belonging to one major producer. For this, we evaluated nine features of the housing system using a linear model with random effect. The features were: roofing, floor, drinkers, feeders, water source, color curtain color, management, light and ventilation. A total of 3516 poultry flocks were assessed. Positive ventilation, metal and clay roof, dirt floor and owner management were shown to reduced mortality. Concrete floor, negative ventilation, blue curtains, fluorescent lightening, owner management, tap water and well water significantly improved FCR. We discuss our findings in relation with economic constraints and provide advices to encourage farmers using simple devices that will improve both production and chicken survival.

  1. Respiratory risks in broiler production workers

    Directory of Open Access Journals (Sweden)

    M do CB de Alencar

    2004-03-01

    Full Text Available There are many situations that involve health risks to the Brazilian rural worker, and animal production is just one of them. Inhalation of organic dust, which has many microorganisms, leads in general to respiratory allergic reactions in some individuals, "asthma-like syndrome", and mucous membrane inflammation syndrome, that is a complex of nasal, eye, and throat complaints. Furthermore, workers might have farmer's hypersensitivity pneumonia, that is a respiratory health risk along the years. The objective of this study was to evaluate the potential pulmonary health risks in poultry production workers in the region of Curitiba, PR, Brazil. Interviews using a pre-elaborated questionnaire with 40 questions were made with 37 broiler production workers, which were submitted to a pulmonary function test. Results of restrictive function with lower FEV1 (the maximum respiratory potential, the forced expiratory volume in the first second of exhalation and FVC (forced vital capacity represented 24.32% of the total of workers, and severe obstruction represented 2.70%. Other symptoms were found in 67.57% of the workers as well. The results showed that those who work more than 4 years and within more than one poultry house, exceeding 5 hours per day of work, presented higher pulmonary health risks. It is concluded that the activities within broiler houses may induce allergic respiratory reaction in workers. The use of IPE (individual protection equipment besides special attention to the air quality inside the housing may be advised in a preventive way.

  2. Pathogenesis of Helicobacter pullorum infections in broilers.

    Science.gov (United States)

    Ceelen, Liesbeth M; Decostere, Annemie; Chiers, Koen; Ducatelle, Richard; Maes, Dominiek; Haesebrouck, Freddy

    2007-05-10

    Four groups of 23 one-day-old broiler chickens were each inoculated by gavage with a different Helicobacter pullorum strain isolated from humans or poultry. As a control, a fifth group of eight animals was inoculated with phosphate-buffered saline. Faecal samples were collected weekly and tested for the presence of H. pullorum DNA using PCR. At 1, 8, 15, 22 and 42 days postinoculation, birds were euthanized and samples from the liver and intestinal tract were histologically, immunohistochemically and bacteriologically examined. The samples were also tested for the presence of H. pullorum DNA by PCR. All animals remained clinically healthy throughout the experiment although mild lesions in the caeca were present in animals inoculated with H. pullorum. In all H. pullorum-inoculated groups, DNA of this bacterium was detected in faecal samples until 42 days postinoculation. The main site of colonization was the caecum. Immunohistochemical examination revealed that the bacterium was closely associated with the caecal epithelial cells. It was concluded that H. pullorum may colonize the caecum of broilers and is excreted in their faeces until slaughter age. This implies that chicken meat might constitute a source of infection for human beings.

  3. Performance and some carcass measurements in starter broiler ...

    African Journals Online (AJOL)

    A 28 day feeding trial was conducted to investigate the performance and some carcass measurements in starter broiler birds fed sweet potato meal. Three hundred and five (305) Anak broilers of one week old were randomly assigned to five treatment diets. Diets 1, 2, 3, 4, and 5 contain 0, 2.5, 5.0, 7.5 and 10.0% levels of ...

  4. Kinetics of starch digestion and performance of broiler chickens

    OpenAIRE

    Weurding, R.E.

    2002-01-01

    Keywords: starch, digestion rate, broiler chickens, peas, tapioca

    Starch is stored in amyloplasts of various plants like cereals and legumes and seeds of these plants are used as feedstuffs for farm animals. Starch is the major energy source in broiler feeds. The properties of starch from different origin vary condiderably and these properties determine its resistance to enzymatic digestion. The objective of the research project de...

  5. Evaluation of Dietary Glycerin Inclusion During Different Broiler Rearing Phases

    Directory of Open Access Journals (Sweden)

    LW Freitas

    Full Text Available ABSTRACT The objective of this study was to evaluate the effect of the dietary addition of different levels of glycerin on the performance, litter moisture, pododermatitis incidence, and carcass and parts yield of broilers. In total, 1,610 broilers were reared in 35 pens with 46 birds each. A completely randomized experimental design, with five treatments with seven replicates was applied. The experimental treatments were: T1: control diet; T2: dietary inclusion of 5% glycerin from 1-42 days of age; T3: dietary inclusion of 10% glycerin from 1-42 days of age; T4: dietary inclusion of 5% glycerin from 7-42 days of age; T5: dietary inclusion of 10% glycerin from 7-42 days of age. The diets containing glycerin fed since the pre-starter period improved broiler weight gain and feed conversion ratio, but did not influence feed intake or livability. At the end of the experiment, the production efficiency index of the broilers fed 10% glycerin during the entire rearing period was significantly reduced compared with the other treatments. Litter moisture in the pens of broilers fed 10% glycerin during the entire rearing period was higher compared to the other treatments since day 21.Diets containing 10% glycerin, both for the entire rearing period (1-42 days or only after the pre-starter phase (7-42 days, influenced broiler performance and incidence of severe pododermatitis, reducing the production efficiency indexes at 42 days. Glycerin may be added up to 5% in broiler´s diets with no effect on performance, litter moisture and carcass yield, indicating that this co-product of the biodiesel industry can be used as an alternative feedstuff for broilers.

  6. Interventions to reduce the bacterial load in recycled broiler litter.

    Science.gov (United States)

    Vaz, C S L; Voss-Rech, D; de Avila, V S; Coldebella, A; Silva, V S

    2017-08-01

    Two experiments were undertaken to evaluate the bacterial load in recycled litter between broiler flocks following addition of quicklime (T1), windrowing (T2), shallow fermentation (T3), and control (no intervention, T4). The first experiment was developed in field conditions in which the broiler houses were accompanied by 6 consecutive flocks and the effect of the treatments was assessed on enterobacteria and aerobic mesophiles. The second experiment was conducted in an experimental broiler house with recycled litter for assessment of Salmonella Enteritidis phage type 4 (SE PT4). In the field study, T3 presented the best results in reducing enterobacteria in broiler litter in relation to the other treatments, with the highest reduction occurring in the first 3 flocks, tending to stabilization from the fourth flock onward for all the treatments assessed. From the third to sixth flocks, enterobacteria level at the end of the treatments (d 12) was lower than the average in the fresh litter, except in T4. All treatments reduced aerobic mesophiles throughout the flocks, where T2 showed the highest reduction. The percentage of dry matter in the broiler litter diminished in T4 and increased in T3 over the course of the flocks. In the second experiment, the drop in the SE PT4 level in the broiler litter first occurred in T2 and T3. However, all the treatments except for T4 eliminated SE PT4 within 12 d. The temperature of the broiler litter in T2 was higher in relation to the other treatments. The results show that litter treatment prior to reutilization by the successive broiler flock is required to reduce the level of residual bacteria. The fermentative treatments (T2 and T3) were found to be superior to the others in terms of reducing the bacterial load, with shallow fermentation standing out with the highest reduction of enterobacteria and equivalent SE PT4 elimination when compared to windrowing. © 2017 Poultry Science Association Inc.

  7. Performance of broilers fed enzyme-supplemented tigernut ...

    African Journals Online (AJOL)

    A feeding trial was set up to study the effects of replacing maize with tigernut meal (TGN) at 0, 33.33, 66.67 and 100 per cent levels, with 0.10 per cent enzyme supplementation of all levels, on performance characteristics and carcass yield in broiler chicken for 8 weeks (56 days). A total of 200 Anak-2000 breed of broilers ...

  8. Socioeconomic Factors Influencing the Choice of type of Broiler ...

    African Journals Online (AJOL)

    Return on Investment (RI) for Brood-and-Sell broiler enterprise was 0.62 while that of Brood-and-finish Broiler enterprise was 0.58. This indicates that a one naira investment in Brood-and-Sell enterprise realized a profit of 62k while that of Brood-and-finish enterprise realized 58k implying that on the basis of this analysis, ...

  9. The impact of broiler production system practices on consumer perceptions of animal welfare

    NARCIS (Netherlands)

    Jonge, de J.; Trijp, van J.C.M.

    2013-01-01

    This research explores the extent to which different farm management practices influence the perceived animal friendliness of broiler production systems, and how this differs between individuals. Using a conjoint design with paired comparisons, respondents evaluated broiler production systems that

  10. Study on price transmission in China's broiler industry chain based on MCM

    Science.gov (United States)

    Xu, Shiwei; Dong, Xiaoxia; Li, Zhemin; Cui, Liguo; Kong, Fantao; Li, Ganqiong; Yu, Haipeng

    This paper studies price transmission mechanism of China's broiler industry chain with Market-chain Cooperated Model (MCM), according to the monthly price data of corn, broiler compound feed, broiler chicks, live chicken and eviscerated chicken from 1994 June to 2011 October. The result shows that the price system of China's broiler industry chain exists price transmission relationship, the price of representative products from upstream and midstream conducts obviously to downstream, and broiler compound feed price plays an important role in the price system. The result also indicates that the interior adjusting of broiler industry chain cannot guarantee that the entire price system recover to balance quickly. Therefore, the government needs to regulate timely the price system of broiler industry chain, especially the price change of feed and live broiler to maintain the price system relative stable.

  11. THE EFFECT OF BEE POLLEN ON BROILER BREAST AND THIGH MEAT COLOUR L a b

    National Research Council Canada - National Science Library

    Peter Hascík; Ibrahim Elimam; Juraj Cubon; Lenka Trembecká; Jana Tkácová; Miroslav Krocko; Miroslava Kacániová

    2014-01-01

      The present study was aimed to investigate the impact of the addition bee pollen as supplements diet into the broiler feed mixture on broiler breast and thigh meat colour such as L* (lightness), a* (redness), and b* (yellowness) values...

  12. A survey of commercially available broilers marketed as organic, free-range, and conventional broilers for cooked meat yields, meat composition, and relative value.

    Science.gov (United States)

    Husak, R L; Sebranek, J G; Bregendahl, K

    2008-11-01

    The objective of this survey was to investigate qualitative and quantitative properties of meat from organic, free-range, and conventional broilers as currently provided to consumers. Fifteen broilers from 4 suppliers of each type were evaluated for raw meat yield, cooked meat yield, proximate composition, pH, color, lipid oxidation, fatty acid composition, and sensory attributes. Organic broilers yielded more dark (thigh) meat (P conventional, when compared on a raw-meat basis, but conventional and free-range broilers yielded more (P organic. Protein content of organic breast and thigh meat was greater (P conventional in the raw and the cooked meat comparisons. The pH of breast meat from organic broilers was higher (P conventional. Organic breast and thigh meat was less yellow (P conventional. Fatty acid analysis showed that organic breasts and thighs were lower (P conventional broilers. Shear force measurements were less (P conventional broilers relative to free-range and organic broilers. Sensory panel results indicated that thighs from conventional broilers were more tender (P organic broilers, whereas other sensory properties did not differ. At the time of the study, March through May of 2006, the average retail prices for US broilers were USD 3.19, USD 2.78, and USD 1.29 per pound (USD 7.03, USD 6.13, and USD 2.84/kg) for organic, free-range, and conventional, respectively. Whereas a difference in the fatty acid composition was the largest difference observed between retail broilers in this survey, it is important to note that diets and production environments within the study were not controlled. It is apparent that the market prices for broilers at the time of this study are not fully reflected in the quantitative and qualitative measurements included in this study. It appears that consumers may be placing significant value on more intangible attributes associated with broilers marketed as organic and free-range chicken than on those attributes measured in

  13. [Probiotics in broilers' rearing: A strategy for intensive production models].

    Science.gov (United States)

    Blajman, Jesica E; Zbrun, María V; Astesana, Diego M; Berisvil, Ayelén P; Romero Scharpen, Analía; Fusari, Marcia L; Soto, Lorena P; Signorini, Marcelo L; Rosmini, Marcelo R; Frizzo, Laureano S

    2015-01-01

    The broiler industry has become an important economic activity in Argentina. Global production of broiler meat has been growing in Argentina faster than for any other meats, possibly due to declining poultry prices and increasing incomes. Modern rearing systems can produce broilers ready to slaughter in 50 days, with the required 2.7kg of weight and a feed conversion of about 1.6kg feed/kg of meat. Nevertheless, broilers raised under these intensive conditions are exposed to various stressors every day. For many years, feed supplementation with antibiotics was widely used to stabilize the gut flora, improve general parameters and prevent avian diseases. However, the utility of antibiotics has been questioned because of the emergence and spread of antibiotic-resistant bacteria in meat. Therefore, there is a renewed interest in finding viable alternatives to antibiotics. One potential method is the supplementation of broiler diets with probiotics. This review provides an updated summary of the use of probiotics to improve sanitary conditions and enhance performance in broilers, demonstrating the role of probiotics as a reliable option to replace antimicrobial growth promoters. Copyright © 2015 Asociación Argentina de Microbiología. Publicado por Elsevier España, S.L.U. All rights reserved.

  14. Environmental Enrichment for Broiler Breeders: An Undeveloped Field.

    Science.gov (United States)

    Riber, Anja B; de Jong, Ingrid C; van de Weerd, Heleen A; Steenfeldt, Sanna

    2017-01-01

    Welfare problems, such as hunger, frustration, aggression, and abnormal sexual behavior, are commonly found in broiler breeder production. To prevent or reduce these welfare problems, it has been suggested to provide stimulating enriched environments. We review the effect of the different types of environmental enrichment for broiler breeders, which have been described in the scientific literature, on behavior and welfare. Environmental enrichment is defined as an improvement of the environment of captive animals, which increases the behavioral opportunities of the animal and leads to improvements in biological function. This definition has been broadened to include practical and economic aspects as any enrichment strategy that adversely affects the health of animals (e.g., environmental hygiene), or that has too many economic or practical constraints will never be implemented on commercial farms and thus never benefit animals. Environmental enrichment for broiler breeders often has the purpose of satisfying the behavioral motivations for feeding and foraging, resting, and/or encouraging normal sexual behavior. Potentially successful enrichments for broiler breeders are elevated resting places, cover panels, and substrate (for broiler breeders housed in cage systems). However, most of the ideas for environmental enrichment for broiler breeders need to be further developed and studied with respect to the use, the effect on behavior and welfare, and the interaction with genotype and production system. In addition, information on practical use and the economics of the production system is often lacking although it is important for application in practice.

  15. Role of batch depletion of broiler houses on the occurrence of Campylobacter spp. in chicken flocks

    DEFF Research Database (Denmark)

    Hald, Birthe; Rattenborg, Erik; Madsen, Mogens

    2001-01-01

    Aims: The effect of batch depletion of broiler houses for campylobacter occurrence in broiler flocks was estimated in 10 flocks, each comprising a separate female and male batch. Methods and Results: The chicks were sampled first bq; cloacal swabs in the broiler houses before the start of the dep...... this study emphasize the need to manage depopulation of broiler houses as quickly as possible and in one batch only....

  16. Effect of Bedding Material on Dust and Ammonia Emission from Broiler Houses

    NARCIS (Netherlands)

    Harn, van J.; Aarnink, A.J.A.; Mosquera Losada, J.; Riel, van J.W.; Ogink, N.W.M.

    2012-01-01

    Ammonia emission, Bedding material, Broilers, Dust emission The objective of this study was to determine the effects of different bedding materials on fine dust (PM10 and PM2.5) and ammonia emissions from broiler houses. The effects on broiler performance and footpad lesions were also studied. The

  17. Efficacy of Activated Carbon from Broiler Litter in the Removal of Litter Generated Ammonia

    Science.gov (United States)

    Over the past 10 years, the production of broilers has increased by 29 percent to approximately 9 billion in 2005. Ammonia (NH3) pollution from broiler excreta is a primary concern for industry viability which requires innovative treatment options. This research focused on the use of broiler litter ...

  18. Effects of β-Mannanase on broiler performance, gut morphology and ...

    African Journals Online (AJOL)

    GREGORY

    2010-09-13

    Sep 13, 2010 ... gut morphology and some blood proteins and leucocytes of broilers provided with diets based on corn and soybean meal. Broiler chickens ... necessary for successful poultry production. Among potential factors reducing ... feed efficiency in broilers (Couch et al., 1967; Ray et al., 1982; Verma and McNab, ...

  19. Efficacy of dimethylglycine as a feed additive to improve broiler production

    NARCIS (Netherlands)

    Kalmar, I.D.; Verstegen, M.W.A.; Vanrompay, D.; Maenner, K.; Zentek, J.; Iben, C.; Leitgeb, R.; Schiavone, A.; Prola, L.; Janssens, G.

    2014-01-01

    Dimethylglycine (DMG) is a naturally occurring glycine derivative, which is useful as additive to broiler diets as it improves nutrient digestibility and reduces the development of broiler ascites syndrome. This study evaluated the efficacy of dietary DMG to enhance performance of broiler chickens.

  20. Reduction of campylobacter infections in broiler flocks by application of hygiene measures

    NARCIS (Netherlands)

    Giessen, A.W. van de; Tilburg, J.J.H.C.; Ritmeester, W.S.; Plas, J. van der

    1998-01-01

    Transmission routes of Campylobacter spp. in broilers and possibilities for prevention of infections were studied on two Dutch broiler farms. The occurrence of Campylobacter spp. was studied in successive broiler flocks, in the environment of the farms and in some of the parent flocks involved.

  1. Upgrading the nutritive value of full-fat soyabeans meal for broiler ...

    African Journals Online (AJOL)

    An experiment was conducted using Anak Red broiler chicks to evaluate the effect of grading the nutritive value of full fat soyabean meal diet based with either fishmeal or Blaick soldier fly larvae meal for broiler production. The average live weight gains of broilers fed an all vegetable protein, fishmeal and larvae meal diets ...

  2. The effect of chemical treatment on life broilers before slaughter and ...

    African Journals Online (AJOL)

    In this study, effect of chemical treatment (surface and oral) using chlorine and TH4 of life broilers before slaughter and slaughter conditions on bacterial and keeping quality of broiler meat was investigated. The objectives were to improve both bacterial and keeping quality of broiler meat and to identify critical control points ...

  3. Effect of dietary vitamin E on the performance of broilers and quality ...

    African Journals Online (AJOL)

    Effect of dietary vitamin E on the performance of broilers and quality of broiler meat during refrigerated and frozen storage. ... Abstract. Experiment 1 was carried out with 220 one-day-old broiler chicks to evaluate the effect of 11 different levels of vitamin E supplementation (viz. 0 to 200 mg a-tocopheryl acetate/kg diet) on the ...

  4. Bacterial successions in the Broiler Gastrointestinal tract

    DEFF Research Database (Denmark)

    Ranjitkar, Samir; Lawley, Blair; Tannock, Gerald

    2016-01-01

    diversity, data were pooled for downstream analysis. With increasing age, a clear succession of bacterial communities and an increased bacterial diversity was observed. Lactobacillaceae (mainly Lactobacillus) represented most of the Firmicutes at all ages and in all segments of the gut except the ceca...... of crop, gizzard, ileum and ceca in relation to the feeding strategy and age (8, 15, 22, 25, 29 and 36 days). Of the four dietary treatments, bacterial diversity was analyzed for MBF and CKMS-30 by 454-pyrosequencing of 16S rRNA gene. Since there was no significant influence of diets on bacterial....... The development of a “mature” microbiota in broilers occurred during the period from 15-22 days. A striking increase in the relative abundance of L. salivarius (17-36%) and clostridia (11-18%), and a concomitant decrease of L. reuteri was found in the ileum after d 15. De-conjugated bile salts increased...

  5. Bacterial successions in the Broiler Gastrointestinal tract

    DEFF Research Database (Denmark)

    Ranjitkar, Samir; Lawley, Blair; Tannock, Gerald

    2016-01-01

    feeding trial was performed with broilers receiving diets based on wheat (WBF), maize (MBF), and maize-based concentrates supplemented with 15% (CKMS-15) or 30% (CKMS-30) crimped kernel maize silage. The aim of the study was to investigate the bacterial community compositions in the contents...... of crop, gizzard, ileum and ceca in relation to the feeding strategy and age (8, 15, 22, 25, 29 and 36 days). Of the four dietary treatments, bacterial diversity was analyzed for MBF and CKMS-30 by 454-pyrosequencing of 16S rRNA gene. Since there was no significant influence of diets on bacterial...... diversity, data were pooled for downstream analysis. With increasing age, a clear succession of bacterial communities and an increased bacterial diversity was observed. Lactobacillaceae (mainly Lactobacillus) represented most of the Firmicutes at all ages and in all segments of the gut except the ceca...

  6. Performance of broiler fed pure glycerine

    Directory of Open Access Journals (Sweden)

    Dássia Daiane Oliveira

    2014-02-01

    Full Text Available Two experiments evaluated the pure glycerin in broiler chicken diets. Experiment 1 was a metabolism test using total feces sampling method with 96 male chickens aging from 17 to 25 d when animals were fed on two treatments: diet1 = no glycerin and diet2 = 60g/kg of glycerin. The apparent metabolized energy measured 4015 kcal/kg and the apparent metabolized corrected for nitrogen balance was 3911 kcal/kg. Experiment 2 evaluated weight gains, feed intake and feed conversion in 480 chicks at 6, 20 and 34 d old fed on diets with 0, 40, 80 and 120 g/kg of glycerin. The results indicate that pure glycerin in chicken diets, as a source of energy must take into consideration the age of the animals and it may be added up to 120 g/kg, from 20 to 41 d of age.

  7. Bioequivalence of three florfenicol preparations in broilers

    Directory of Open Access Journals (Sweden)

    Husamettin Ekici

    2014-12-01

    Full Text Available This study was aimed to determine the bioequivalence of three different preparations of florfenicol using non-drugged broiler chickens. A total of 28 broiler chickens aging 30-day were divided into four equal groups; these were Group I, II, III, and IV. The birds of Group I (for effective substance were given intravenous (i.v. administration of florfenicol dosed at 40 mg/kg body weight (b.wt.. The birds of Group II (for reference drug, Group III (for test-1 drug, and Group IV (for test-2 drug received florfenicol preparations with water (dosed at 40 mg/kg b.wt. through intracrop administration. Blood samples were collected periodically from the birds of all four groups, and blood plasma was separated. Levels of florfenicol and its metabolite (florfenicol amine in the plasma were measured by High Performance Liquid Chromatography (HPLC. In this study, the limit of detection (LOD for florfenicol and florfenicol amine were recorded as 0.017 and 0.78 µg/mL, respectively. On the other hand, the recovery of florfenicol and florfenicol amine were 83.4-84.6 and 82.2-83.8%, respectively. Based on the values of area under the curve (AUC, maximum concentration (Cmax, and time to maximum concentration (Tmax, test-1 drug was found to be acceptable, whereas test-2 drug was remained below the acceptable limits (80-125% of AUC and Cmax. Thus, it was concluded that test-1 drug was bioequivalent as compared to the reference drug.

  8. BONE CHARACTERISTICS OF BROILERS SUPPLEMENTED WITH VITAMIN D

    Directory of Open Access Journals (Sweden)

    S Colet

    2015-09-01

    Full Text Available ABSTRACTVitamin D is added to broiler diets to supply its physiological requirement for bone formation. The fast growth rate of modern broilers is often associated with poor bone formation. Increasing vitamin D supplementation levels and the use of more available sources have applied to try to prevent leg problems, to increase carcass yield, and to improve the performance of broilers. The present study evaluated three vitamin D supplementation levels (1 3,500 IU (control; (2 control + 1,954 IU of 25-hydroxycholecalciferol; and (3 control + 3,500 IU of vitamin D in broiler diets supplied up to 21 days of age. The objective was to investigate if the vitamin D levels above the recommendations could reduce leg problems in broilers. In this experiment, a total of 1,296 one-day-old male and female Cobb(r 500 broilers were used. A 2 x 3 factorial arrangement was applied, consisting of two sexes and three vitamin D levels. No difference was found between the levels of vitamin D (p > 0.05, the performance of males or females, the gait score, the valgus and varus incidence, the tibial dyschondroplasia incidence, the occurance of femoral degeneration, the bone colorimetric, and the carcass yield. Parts yield differences were found (p > 0.05, except for liver and intestine yields. We concluded that the lowest tested vitamin D level (3,500 IU per kilogram of feed added to the diet was the best choice in terms of cost/benefit to help minimizing leg problems in broilers.

  9. Sound analysis to model weight of broiler chickens.

    Science.gov (United States)

    Fontana, Ilaria; Tullo, Emanuela; Carpentier, Lenn; Berckmans, Dries; Butterworth, Andy; Vranken, Erik; Norton, Tomas; Berckmans, Daniel; Guarino, Marcella

    2017-09-01

    The pattern of body weight gain during the commercial growing of broiler chickens is important to understand growth and feed conversion ratio of each flock.The application of sound analysis techniques has been widely studied to measure and analyze the amplitude and frequency of animal sounds. Previous studies have shown a significant correlation (P ≤ 0.001) between the frequency of vocalization and the age and weight of broilers. Therefore, the aim of this study was to identify and validate a model that describes the growth rate of broiler chickens based on the peak frequency of their vocalizations and to explore the possibility to develop a tool capable of automatically detecting the growth of the chickens based on the frequency of their vocalizations during the production cycle. It is part of an overall goal to develop a Precision Livestock Farming tool that assists farmers in monitoring the growth of broiler chickens during the production cycle. In the present study, sounds and body weight were continuously recorded in an intensive broiler farm during 5 production cycles. For each cycle the peak frequencies of the chicken vocalizations were used to estimate the weight and then they were compared with the observed weight of the birds automatically measured using on farm automated weighing devices. No significant difference is shown between expected and observed weights along the entire production cycles; this trend was confirmed by the correlation coefficient between expected and observed weights (r = 96%, P value ≤ 0.001).The identified model used to predict the weight as a function of the peak frequency confirmed that bird weight might be predicted by the frequency analysis of the sounds emitted at farm level. Even if the precision of the weighing method based on sounds investigated in this study has to be improved, it gives a reasonable indication regarding the growth of broilers opening a new scenario in monitoring systems in broiler houses. © 2017

  10. The Effects of Two Different Cleaning and Disinfection Programs on Broiler Performance and Microbiological Status of Broiler Houses

    Directory of Open Access Journals (Sweden)

    MFC Burbarelli

    2015-12-01

    Full Text Available ABSTRACT The objective of this study was to investigate the influence of two cleaning and disinfection programs on broiler performance and on the microbiological status of the facilities. This trial was an observational study of comparative character. Two experiments were conducted, with 960 birds each. Both experiments were carried out in a positive-pressure broiler house. Broilers were distributed in pens equipped with a bell drinker and a tube feeder each. In the first experiment, new wood shavings were used as litter material, and in the second, reused wood shavings were used. Two treatments with16 replicates of 30 birds each were evaluated. The regular treatment consisted of dry and wet organic matter removal, followed by washing. The European treatment consisted of dry organic matter removal, humidification, washing with water under high pressure, detergent application, rinsing, and application of two combined disinfectants: glutaraldehyde 250g/L + formaldehyde 185g/L; p-chlor-m-cresol 210 g/L. Biosecurity measures were adopted during daily management tasks to prevent cross contamination between treatments. The effectiveness of the treatments was evaluated by microbiological analysis performed before and after treatment applications, as well as by broiler performance results. Live performance results were similar between both treatments when broilers were reared on new litter. When reused word-shavings were used as litter material, the European treatment promoted better broiler performance. The European treatment was more effective than the regular treatment in reducing total microbial counts in the facilities when reused wood shavings were used as litter material, and positively influenced broiler performance.

  11. Effect of Dietary Beta-Glucan on the Performance of Broilers and the Quality of Broiler Breast Meat

    Directory of Open Access Journals (Sweden)

    Sun Hee Moon

    2016-03-01

    Full Text Available A total of 400, one day-old commercial broiler chicks were divided into five diet groups (negative control, positive control group with 55 ppm Zn-bacitracin, 15 ppm β-glucan, 30 ppm β-glucan, and 60 ppm β-glucan and fed for six weeks. Ten broilers were allotted to each of 40 floor pens. Eight floor pens were randomly assigned to one of the 5 diets. Each diet was fed to the broilers for 6 weeks with free access to water and diet. The survival rate, growth rate, feed efficiency, and feed conversion rate of the broilers were calculated. At the end of the feeding trial, the birds were slaughtered, breast muscles deboned, and quality parameters of the breast meat during storage were determined. The high level of dietary β-glucan (60 ppm showed better feed conversion ratio and survival rate than the negative control. The survival rate of 60 ppm β-glucan-treated group was the same as that of the antibiotic-treated group, which showed the highest survival rate among the treatments. There was no significant difference in carcass yield, water holding capacity, pH, color, and 2-thiobarbituric acid reactive substances values of chicken breast meat among the 5 treatment groups. Supplementation of 60 ppm β-glucan to broiler diet improved the survival rate and feed conversion rate of broilers to the same level as 55 ppm Zn-bacitracin group. The result indicated that use of β-glucan (60 ppm can be a potential alternative to antibiotics to improve the survival and performance of broilers. However, dietary β-glucan showed no effects on the quality parameters of chicken breast meat.

  12. Valine needs in starting and growing Cobb (500) broilers.

    Science.gov (United States)

    Tavernari, F C; Lelis, G R; Vieira, R A; Rostagno, H S; Albino, L F T; Oliveira Neto, A R

    2013-01-01

    Two independent experiments were conducted with male Cobb × Cobb 500 broilers to determine the optimal valine-to-digestible-lysine ratio for broiler development. We conducted a randomized block experiment with 7 treatments, each with 8 replicates of 25 starter birds (8 to 21 d of age) and 20 finisher (30 to 43 d of age) birds. To prevent any excess of digestible lysine, 93% of the recommended level of digestible lysine was used to evaluate the valine-to-lysine ratio. The utilized levels of dietary digestible lysine were 10.7 and 9.40 g/kg for the starting and growing phases, respectively. A control diet with 100% of the recommended level of lysine and an adequate valine-to-lysine ratio was also used. The feed intake, weight gain, feed conversion ratio, and carcass parameters were evaluated. The treatments had no significant effect on the feed intakes or carcass parameters in the starter and finisher phases. However, during both of the studied phases, we observed a quadratic effect on weight gain and the feed conversion ratio. The broilers of both phases that were fed test diets with the lower valine-to-lysine (Val/Lys) ratio had poorer performance compared with those broilers fed control diets. However, when higher Val/Lys ratios were used for the starting and growing broilers that were fed test diets, the 2 groups had similar performance. During the starting phase, in broilers that were fed a higher Val/Lys ratio, weight gain, and the feed conversion ratio improved by 5.5% compared with broilers fed the basal diets. The broilers in the growing phase also had improved performance (by 7 to 8%) when the test diets had higher Val/Lys ratios. Based on the analysis of the starter phase data, we concluded that the optimal digestible Val/Lys ratio for Cobb × Cobb 500 broilers is 77%, whereas for birds in the finisher phase (30 to 43 d of age), a digestible Val/Lys ratio of 76% is suggested.

  13. Effect of Different Proportion of Lucerne Meal in Broiler Chickens

    Directory of Open Access Journals (Sweden)

    Jana Tkáčová

    2011-05-01

    Full Text Available We carried the feeding experiment with broiler chickens ROSS 308. The experiment was contained from two groups. In each group were 100 pcs broiler chickens. We research in the experiment the efficiency of lucerne meal with proportion 2% and 6% in feed mixtures. The lucerne meal contains protein 164 g per kg, fiber 257 g per kg, lysine 6.95 g per kg, methionine 2.4 g per kg, methionine + cysteine 4.1 g per kg, threonine 6.66 g per kg, thryptophane 2.1 g per kg, metabolizable energy 4.0 MJ per kg and carotenoids content 293.0 mg per kg. The broilers body weight was increased 1738.4 g in group with proportion of lucerne meal 2% in feed mixtures. The proportion of proportion 6% lucerne meal in feed mixtures decreased a body weight of the broiler chickens on level 1552.8 g. The differences of body weight between groups of the broiler chickens were statistically significant (P<0.05. Lucerne meal contains fiber, which increases the overall percentage of fiber in the compound, resulting in worse feed utilization.

  14. Probiotic and Acetic Acid Effect on Broiler Chickens Performance

    Directory of Open Access Journals (Sweden)

    Martin Král

    2011-05-01

    Full Text Available Probiotics and organic acids are widely accepted as an alternative to in-feed antibiotics in poultry production. We carried the experiment with broiler chickens. In experiment we research effect of probiotic and acetic acids on the performance of broiler chickens. A total number of 200 one day old broiler chickens were distributed to two dietary groups. Broiler chickens in control group were fed with standard feed mixture and experimental group 1% vinegar contained 5% acetic acid used in drinking water and probiotics mixed with feed mixture. Body weight, FCR and GIT pH were recorded. The performance showed no statistically significant increase in body weight (P>0.05 in the weeks 1, 2, 3 and 4 of age. The body weight of broiler chickens was significant increase (P0.05 in weeks 5, and 6 of age. In different segments of the GIT was not statistically significant (P>0.05 difference of pH between the control and experimental groups.

  15. Environmental Enrichment for Broiler Breeders: An Undeveloped Field

    DEFF Research Database (Denmark)

    Riber, Anja Brinch; Jong, Ingrid de; van de Werd, Heleen A.

    2017-01-01

    of environmental enrichment for broiler breeders, which have been described in the scientific literature, on behavior and welfare. Environmental enrichment is defined as an improvement of the environment of captive animals, which increases the behavioral opportunities of the animal and leads to improvements...... in biological function. This definition has been broadened to include practical and economic aspects as any enrichment strategy that adversely affects the health of animals (e.g., environmental hygiene), or that has too many economic or practical constraints will never be implemented on commercial farms...... and thus never benefit animals. Environmental enrichment for broiler breeders often has the purpose of satisfying the behavioral motivations for feeding and foraging, resting, and/or encouraging normal sexual behavior. Potentially successful enrichments for broiler breeders are elevated resting places...

  16. Prevalence of Coccidiosis in Broiler Chicken Farms in Western Iran

    Science.gov (United States)

    Gharekhani, Jamal; Sadeghi-Dehkordi, Zivar; Bahrami, Mohammadali

    2014-01-01

    The main goal of current study was to investigate the prevalence of coccidiosis in broiler farms in Hamedan province, western Iran. Chicks and fecal samples were collected in all of the 220 broiler farms in this region. All viscera were examined for gross pathological changes. The mucosa of small intestine and the caeca were examined for the presence and identification of parasitic forms using parasitology methods. The overall rate of coccidiosis was 31.8%; E. acervulina (75.7%), E. tenella (54.3%), E. necatrix (28.6%), and E. maxima (20%) were determined. Mixed infections were observed in all of the positive farms. There was a statistical significant difference (P 0.05). This is the first report of coccidiosis rate in broiler farms in this region. Further additional researches and design control strategies for improving management in farms are necessary. PMID:26464948

  17. Prevalence of Coccidiosis in Broiler Chicken Farms in Western Iran

    Directory of Open Access Journals (Sweden)

    Jamal Gharekhani

    2014-01-01

    Full Text Available The main goal of current study was to investigate the prevalence of coccidiosis in broiler farms in Hamedan province, western Iran. Chicks and fecal samples were collected in all of the 220 broiler farms in this region. All viscera were examined for gross pathological changes. The mucosa of small intestine and the caeca were examined for the presence and identification of parasitic forms using parasitology methods. The overall rate of coccidiosis was 31.8%; E. acervulina (75.7%, E. tenella (54.3%, E. necatrix (28.6%, and E. maxima (20% were determined. Mixed infections were observed in all of the positive farms. There was a statistical significant difference (P0.05. This is the first report of coccidiosis rate in broiler farms in this region. Further additional researches and design control strategies for improving management in farms are necessary.

  18. Foodborne Disease Prevention and Broiler Chickens with Reduced Campylobacter Infection

    Science.gov (United States)

    Bahrndorff, Simon; Rangstrup-Christensen, Lena; Nordentoft, Steen

    2013-01-01

    Studies have suggested that flies play a linking role in the epidemiology of Campylobacter spp. in broiler chickens and that fly screens can reduce the prevalence of Campylobacter spp. We examined the year-round and long-term effects of fly screens in 10 broiler chicken houses (99 flocks) in Denmark. Prevalence of Campylobacter spp.–positive flocks was significantly reduced, from 41.4% during 2003–2005 (before fly screens) to 10.3% in 2006–2009 (with fly screens). In fly screen houses, Campylobacter spp. prevalence did not peak during the summer. Nationally, prevalence of Campylobacter spp.–positive flocks in Denmark could have been reduced by an estimated 77% during summer had fly screens been part of biosecurity practices. These results imply that fly screens might help reduce prevalence of campylobacteriosis among humans, which is closely linked to Campylobacter spp. prevalence among broiler chicken flocks. PMID:23628089

  19. The Influence of Concentrace Mineral Drops on Performance Broiler

    Directory of Open Access Journals (Sweden)

    Sigit Mugiyono

    1999-05-01

    Full Text Available A research has been conducted in Experimental Farm Faculty of Animal Husbandry Unsoed from July 1 st until August 15 th, 1996. The purpose want to study the influence of CMD supplementation in drinking water consists of M0 = control; M1 = 0.5 drops/1000 cc, M2 = 1 drops/1000 cc; M3 = 1.5 drops/1000 cc and M4 = 2 drops/1000cc. The performance observed were growth, body weight, feed consumption, feed conversion, drinking water consumption; and income over feed and mineral cost (IOFMC. The research involved 100 broiler chickens divided that CMD supplementation until 2 drops/1000cc did not significantly affect on the performance of broiler chickens except in income over feed and mineral cost (P<0.05. (Animal Production 1(2: 56-62 (1999 Key Words: broiler, concentrace mineral drops, performance.

  20. U.S. broiler housing ammonia emissions inventory

    Science.gov (United States)

    Gates, R. S.; Casey, K. D.; Wheeler, E. F.; Xin, H.; Pescatore, A. J.

    Using recently published baseline ammonia emissions data for U.S. broiler chicken housing, we present a method of estimating their contribution to an annual ammonia budget that is different from that used by USEPA. Emission rate increases in a linear relationship with flock age from near zero at the start of the flock to a maximum at the end of the flock, 28-65 days later. Market weight of chickens raised for meat varies from "broilers" weighing about 2 kg to "roasters" weighing about 3 kg. Multiple flocks of birds are grown in a single house annually, with variable downtime to prepare the house between flocks. The method takes into account weight and number of chickens marketed. Uncertainty in baseline emissions estimates is used so that inventory estimates are provided with error estimates. The method also incorporates the condition of litter that birds are raised upon and the varying market weight of birds grown. Using 2003 USDA data on broiler production numbers, broiler housing is estimated to contribute 8.8-11.7 kT ammonia for new and built-up litter, respectively, in Kentucky and 240-324 kT ammonia for new and built-up litter, respectively, nationally. Results suggest that a 10% uncertainty in annual emission rate is expected for the market weight categories of broilers, heavy broilers, and roasters. A 27-47% reduction in annual housing emission rate is predicted if new rather than built-up litter were used for every flock. The estimating method can be adapted to other meat bird building emissions and future ammonia emission strategies, with suitable insertion of an age-dependent emission factor or slope into a predictive model equation. The method can be readily applied and is an alternative to that used by USEPA.

  1. Footpad Dermatitis in Broilers: Differences between Strains and Gender

    Directory of Open Access Journals (Sweden)

    BB Martins

    Full Text Available ABSTRACT Pododermatitis, also known as "bumblefoot", is an inflammatory lesion of the footpad. The objective of this study was to evaluate the influence of genetic strain and sex on the incidence of footpad lesions in broilers. The experiment was carried out at São Paulo State University, using 480 broilers distributed in a completely randomized experimental design in a 2X2 factorial arrangement (2 strains X2 sexes, with four replicates of 30 broilers each, totaling 16 experimental units. Feed intake, weight gain, feed conversion ratio, and livability were evaluated at 21, 35 and 42 days of age; production efficiency factor was determined at the end of the rearing period. On day 42, the footpads of 100 broilers were grossly examined and assigned a lesion score in a 1-3 scale (Almeida Paz & Martins, 2014. Three samples per score within treatment were collected for microscopic evaluation. Analysis of variance was applied and performance parameter means were compared by Tukey's test. Footpad lesion incidence was analyzed by the c2 test using SAS (version8.2. Ross(r broilers presented higher feed intake during all evaluated periods, and higher weight gain only in the period 1 to 21 days compared with Cobb(r broilers. On the other hand, Cobb(r presented better feed conversion ratio in the periods of 1 to 35 and 1 to 42 days. The incidence of foot pad lesions was statistically different (p< 0.05 between strains and sexes, but there were no interactions between these factors. The lesion scores assigned were compatible with the histopathological results, showing that the higher the score, the more severe were the dermal and epidermal lesions.

  2. Iron requirements of broiler breeder hens.

    Science.gov (United States)

    Taschetto, Diogo; Vieira, Sergio Luiz; Angel, Clara Roselina; Stefanello, Catarina; Kindlein, Liris; Ebbing, Marco Antonio; Simões, Cristina Tonial

    2017-09-01

    A study was conducted to investigate Fe requirements of broiler breeders. One-hundred-fifty-six Cobb 500 broiler breeder hens were individually placed in electrostatically painted cages at 22 weeks. The study was composed of an adaptation phase, in which hens were fed corn-soy-wheat bran diets until 35 wks. An Fe deficient mash diet (24.6 ppm Fe) was provided from 35 to 46 wk in order to induce a partial body Fe depletion. A production phase followed from 47 to 70 wk when hens were fed 6 diets with increasing Fe sulfate supplementation, which, upon analyses had 24.6, 48.6, 74.3, 99.6, 125.6, and 148.2 ppm Fe. Thirty hatching eggs from each treatment were randomly collected in the last wk of each production period and incubated. Hemoglobin and hematocrit were analyzed from 6 hens as well as all hatched chicks per treatment. Analyses of production and hatching data were conducted using quadratic polynomial (QP), broken-line (BL), and exponential asymptotic (EA) models. Effects of dietary Fe were observed for total eggs and total hatching eggs, egg yolk Fe content, and hen and chick hematocrit and hemoglobin (P < 0.05). These responses to added Fe were optimized when dietary Fe were 96.8, 97.1, 130.6, 122.6, 120.0, and 125.0 ppm (QP) and 76.4, 89.3, 135.0, 128.4, 133.8, and 95.0 ppm (BL) for total hatching eggs, egg yolk Fe content, and hen and chick hematocrit and hemoglobin, respectively. Optimization with the EA model was obtained for total hatching eggs, egg yolk Fe, and hen and chick hemoglobin at 97.9, 111.0, 77.9, and 96.3 ppm Fe for total hatching eggs, egg yolk Fe, and hen and chick hemoglobin, respectively. Adequate Fe levels are needed to maintain egg production as well as hatching chicks' indexes. Fe concentration in the yolk and diet are positively influenced. The average of all Fe requirement estimates obtained in the present study was 106 ppm total Fe, whereas averaged values for BL, QP, and EA models were 107, 113, and 97 ppm Fe, respectively. © 2017

  3. Hatchery-borne Salmonella enterica serovar Tennessee infections in broilers

    DEFF Research Database (Denmark)

    Christensen, J.P.; Brown, D.J.; Madsen, Mogens

    1997-01-01

    of S. enterica serovar Tennessee isolates from Danish broilers (1992 to 1995), the suspected hatchery and strains from various other sources included for comparison was initiated in order to trace the source of infection of the broilers. In general, strains of S. enterica ser. Tennessee showed only...... minor genotypic variation. Three different ribotypes were demonstrated when EcoRI was used for digestion of DNA. Two types were obtained by the use of HindIII. Nine different plasmids and seven different plasmid profiles were demonstrated. A 180 kb plasmid was, however, only demonstrated in isolates...

  4. Efficacy in the field of two anticoccidial vaccines for broilers

    Directory of Open Access Journals (Sweden)

    Guido Grilli

    2010-01-01

    Full Text Available We compared two attenuated anticoccidial vaccines, administered to broilers by spray into the incubator (88,000 males and 210,100 females. Vaccine A container five species of Eimeria and vaccine B three. Zootechnical performance was similar in the two groups, with mean lesion scores no higher than 1; vaccine A caused only duodenal lesions, while vaccine B also caused typhlitis. Maximum oocyst count was 23,000/g feces at age 28 days with vaccine A and 38,000 at 21 days with vaccine B. Broilers vaccinated with vaccine B had more frequent enteric symptoms, and C. perfringens isolation.

  5. Application OF LIBS To Estimate The Age Of Broiler Breeders

    Science.gov (United States)

    Salam, Z. Abdel; Harith, M. A.

    2011-09-01

    Laser Induced Breakdown Spectroscopy (LIBS) is a well-known spectrochemical elemental analysis technique. In our investigations of the LIBS spectra it has been found that there is a remarkable correlation between the ionic to atomic spectral lines emission ratio and the surface hardness of eggshell for two Different Broiler Breeder at different age. The proposed technique has been applied successfully in poultry science to estimate the age of broiler breeders by measuring the surface hardness of their eggshell. The experiments have been performed on two different strains, Arbor Acres plus (AAP) and Hubard Classic (HC), and the results were satisfactory.

  6. Reducing Abdominal Fat Deposition in Broiler Through Feeding Management

    Directory of Open Access Journals (Sweden)

    Cecep Hidayat

    2015-09-01

    Full Text Available Abdominal fat in broiler carcass is considered as a waste and its existence reduces the carcass quality. Abdominal fat deposition is affected by several factors such as genetic, nutrition, feed, sex, age and environment. Reducing abdominal fat deposition can be carried out by regulating the nutrient intake to ensure that no excessive nutrient was consumed. Nutrition effects to reduce abdominal fat deposition are associated with nutrient concentration of ration and quantity of daily feed intake. Daily nutrient intake can be limited, especially through restricted feeding. It is concluded that an appropriate feeding management can reduce abdominal fat deposition in broiler.

  7. Environmental and physiological variables during the catching of broilers

    Directory of Open Access Journals (Sweden)

    ML de V Queiroz

    2015-03-01

    Full Text Available The objective of this study was to determine the critical points of the operation of broiler catching for transport to the processing plant from animal and operational perspectives. During catching, chickens, environmental variables (temperature and relative humidity were constantly monitored to determine the Enthalpy Comfort Index (IEC. Also, the physiological variable rectal temperature (RT was monitored as an indicator of stress suffered by the birds during this handling procedure. Bird welfare were evaluated by analyzing their behavior. The bag method was effective to prevent the struggling of birds while being taken from the broiler house to the transport truck, reducing physical injuries and losses during catching.

  8. ANALISIS PENAWARAN AYAM PEDAGING (BROILER DI TINGKAT PETANI

    Directory of Open Access Journals (Sweden)

    GEORGIUS HARTONO

    2012-09-01

    Full Text Available ABSTRAK Pembangunan usaha peternakan ayam pedaging (broiler untuk meningkatkan produksi daging sangat dirasakan manfaatnya, terutama untuk mensubstitusi ternak sapi dan kerbau impor, yang populasinya menurun serta untuk menyediakan daging bagi masyarakat dengan harga murah, sehingga konsumsi protein hewani mereka dapat meningkat pula. Tujuan penelitian ini untuk mengetahui pengaruh harga ayam pedaging, harga DOC, harga pakan ayam, harga obat-obatan, dan upah tenaga kerja terhadap penawaran ayam pedaging. Metode penelitian yang digunakan adalah metode deskriptif, sementara data dikumpulkan dengan metode survai. Sebanyak 60 responden dipilih sebagai sampel penelitian yang ditentukan secara purposif di antara 200 peternak ayam pedaging di Kecamatan Suruh, Kabupaten Semarang. Hasil penelitian ini menunjukkan bahwa secara keseluruhan berbagai variabel independen yang meliputi harga ayam pedaging, harga DOC, harga pakan ayam, harga obat-obatan, dan upah tenaga kerja berpengaruh terhadap penawaran ayam pedaging, yang dianalisis dengan model fungsi penawaran trans log, dan secara individual masing-masing variabel independen tersebut mempunyai koefisien regresi 0,3688; 1,7079; -2,9779; 5,2588 dan 3.6565. THE ANALYSIS OF BROILER SUPPLY FARMING SUMMERY ABSTRACT Developing of broiler farming For increase meat production is assumed to be useful, especially to supply the substitution of beef and buffalo cattle import, in which their population decrease, besides to supply meat for society which low price so that their animal protein consumption can increase. The aim of this study was to know the effect of DOC price, woof chicken price, drug price, labor wage and broiler price to broiler supply. The descriptive method was used in this research, while the data was collected using survey method. The 60 respondents were selected purposively among the 200 of broiler farming at Suruh Sub District, Semarang regency. The results of this study indicated that on the

  9. Spatio-temporal patterns of Campylobacter colonization in Danish broilers

    DEFF Research Database (Denmark)

    Chowdhury, S; Themudo, G E; Sandberg, M

    2013-01-01

    SUMMARY Despite a number of risk-factor studies in different countries, the epidemiology of Campylobacter colonization in broilers, particularly spatial dependencies, is still not well understood. A series of analyses (visualization and exploratory) were therefore conducted in order to obtain...... in the same areas in the summer months from 2007 to 2009. Range of influence between broiler farms were estimated at distances of 9·6 km and 13·5 km in different years. Identification of areas and time with greater risk indicates variable presence of risk factors with space and time. Implementation of safety...

  10. PERAN PEMERINTAH DAERAH DALAM PENYULUHAN PEMELIHARAAN AYAM BROILER DI DESA TANRARA KECAMATAN BONTONOMPO SELATAN KABUPATEN GOWA

    Directory of Open Access Journals (Sweden)

    Rini Pebrianti

    2012-04-01

    Full Text Available The aim of this study was to obtain a picture of how the role of the local government in the counseling of medical care of broiler chickens in the village of Tanrara, South Bontonompo District, Regency of Gowa and analysis counseling medical care of broiler chicken farms. Type of research used is descriptive qualitative , Data is collected using a technical field research, library research and data searches on line. The data were then analyzed qualitatively to explain or describe the data examined of the field, both primary data obtained from interviews, as well as from secondary data. The results of this study indicate that the Agency's role in the maintenance of broiler chickens counseling is to provide education to farmers (educational roles, provide assistance to farmers, as a facilitator for the farmers, as well as help increase the productivity of resources and ranchers. Counseling of medical care of broiler chickens may improve outcomes farm broiler chickens caused by could encourage increased production and productivity of poultry broiler, encourage availability  broiler chickens is always stable on the market, local goverment encourage increased incomes and welfare of broiler breeders as well as help the marketing of chicken broiler widespread.     Penelitian ini bertujuan untuk memperoleh gambaran tentang bagaimana peran Dinas Perikanan, Kelautan, dan Peternakan dalam penyuluhan pemeliharaan ayam broiler di Desa Tanrara Kecamatan Bontonompo Selatan Kabupaten Gowa serta ananlisis mengenai penyuluhan pemeliharaan ayam broiler. Tipe penelitian yang dipergunakan adalah diskriptif kualitatif. Pengumpulan data dilakukan menggunakan teknis field research library research dan penelusuran data on line. Data yang diperoleh selanjutnya dianalisis secara kualitatif dengan menjelaskan atau menggambarkan data yang diteliti dari lapangan, baik data primer yang diperoleh dari hasil wawancara, maupun dari data sekunder. Hasil penelitian ini

  11. Risk of Incidence of Hock Burn and Pododermatitis in Broilers Reared under Commercial Conditions

    Directory of Open Access Journals (Sweden)

    FG Jacob

    Full Text Available ABSTRACT The most common lesions observed in commercial broiler farms are hock burns and pododermatitis, defined as necrotic lesions on the plantar surface of the footpads and in the hock of growing broilers, causing pain and compromising broiler welfare. The present study aimed at identifying the risks of hock burns and pododermatitis in broilers reared under commercial conditions on new or reused litter. Twenty-four 40-d-old broilers reared in two houses in a commercial broiler farm. The plantar surface of the footpads and the hocks of broiler were recorded using infrared thermal images. The incidence of hock burns in broilers reared on new litter was 0.72 times lower than those on reused litter. Broilers reared on new litter presented lower risk (0.75, RR<1 of presenting pododermatitis when compared to those reared on reused litter. When simulating the risk using a larger sample, the simulated risk of broilers presenting footpad and hock lesions when reared on new litter was 38% higher those reared on reused litter.

  12. Poultry offal meal in broiler chicken feed

    Directory of Open Access Journals (Sweden)

    Edney Pereira da Silva

    2014-06-01

    Full Text Available An outstanding feature of poultry production that provides animal protein yield for human feeding is its short production cycle. This characteristic has a linear relationship with waste production. Increasing the inclusion of this residue in diets in the near future is desirable in step with the growth of poultry production since it offers a better environmental and nutritional alternative to current methods. We evaluated the effects on the performance and carcass characteristics of broiler chickens produced by the inclusion of poultry offal meal (POM in their feed. Treatments consisted of a control diet (corn, Zea mays and soybean, Glycine max and four diets with inclusion of 30, 60, 90 and 120 g kg-1 of POM. The diets were formulated based on the level of digestible amino acid once categorized as isocalcic, isophosphoric, isosodic, isoenergetic and isonutritive for protein, methionine+cystine, lysine and threonine. The feed's electrolytes were corrected so that each diet had the same electrolytic balance. The variables analyzed were feed intake, weight gain, feed conversion ratio, body weight, carcass yield, chicken cut yield and abdominal fat. Feed intake was not affected by the quantities of POM added. The weight gain, feed conversion, carcass yield and noble cuts presented quadratic responses to the treatments. Abdominal fat increased linearly. The performance of the poultry, and carcass characteristics were maximized by the inclusion of 53 and 65 g kg-1, respectively, of POM in the diet, and the inclusion of 120 g kg-1 of POM provided greater disposition of abdominal fat.

  13. Genetic variation of contact dermatitis in broilers

    DEFF Research Database (Denmark)

    Ask, Birgitte

    2010-01-01

    left and right scores was lower than 1 (FPD: 0.73 and HB: 0.57), and both left and right FPD and HB must, therefore, be evaluated. High prevalences of FPD, but also HB, were achieved in the field trial, but lower prevalences may be sufficient for genetic evaluations and would be less detrimental......This study aimed to investigate the presence of genetic variation in footpad dermatitis (FPD) and hock burns (HB) and the possibility to genetically select against these. A field trial including 10 commercial broiler lines (n = 102 to 265) was carried out at 2 Dutch farms. Footpad dermatitis and HB...... were subjectively scored at ~4, 5, and 7 wk on a scale from 0 through 5. Genetic parameters were estimated in 2 lines based on a larger data set. The overall agreement of repeated FPD and HB scores was high (0.66 to 0.86) and the scoring system was, therefore, considered reliable. Kendall's tau between...

  14. Risk factors for occurrence of cephalosporin-resistant Escherichia coli in Norwegian broiler flocks.

    Science.gov (United States)

    Mo, Solveig Sølverød; Kristoffersen, Anja Bråthen; Sunde, Marianne; Nødtvedt, Ane; Norström, Madelaine

    2016-08-01

    A longitudinal study of 27 broiler farms including 182 broiler flocks was performed to determine risk factors for occurrence of cephalosporin-resistant Escherichia coli in Norwegian broiler flocks. Information regarding possible risk factors was collected by an online questionnaire and by samples obtained from broiler and parent flocks during the study period. Additional information was provided by the broiler production company. The prevalence of cephalosporin-resistant E. coli in parent flocks and broiler flocks sampled in the study was estimated. Cephalosporin-resistant E. coli was detected in 13.8% of the parent flocks and 22.5% of the broiler flocks included in the study. A multivariable generalized linear model was used to estimate risk factors. The risk for occurrence of cephalosporin-resistant E. coli was associated with the status of the previous flock in the broiler house (odds ratio=12.7), number of parent flocks supplying the broiler flock with day-old chickens (odds ratio=6.3), routines for disinfection of floor between production cycles (odds ratio=0.1), and transport personnel entering the room where the broilers are raised (odds ratio=9.3). Our findings highlights that implementation of a high level of biosecurity with a minimal number of people entering the broiler house during production cycles, as well as rigorous cleaning and disinfection routines between production cycles will contribute to a decrease in the occurrence of cephalosporin-resistant E. coli in broiler flocks provided that there is no selection pressure from antimicrobial use in the broiler production. Copyright © 2016 The Authors. Published by Elsevier B.V. All rights reserved.

  15. Dust Reduction in Broiler Houses by Spraying Rapeseed Oil

    NARCIS (Netherlands)

    Aarnink, A.J.A.; Harn, van J.; Hattum, van T.G.; Zhao, Y.; Ogink, N.W.M.

    2011-01-01

    The effect of spraying rapeseed oil on the reduction of dust and ammonia concentrations and emissions, and on animal parameters was investigated in a dose-response study in a broiler house during three growing periods in four (round 1) or five rooms (rounds 2 and 3). The spraying rates varied per

  16. Performance and Carcass Yield of Sexed Broiler Chickens Reared ...

    African Journals Online (AJOL)

    This study thereby determined the performance, carcass yield and meat composition of 300 sexed Arbor Acre broiler chickens reared on deep-litter and deep-litter with a run housing types. The birds were brooded for 2 weeks, differentiated into male and female by feather sexing and balanced for weight. Thereafter, 150 ...

  17. performance, carcass traits and blood parameters of broiler chickens

    African Journals Online (AJOL)

    density and L-carnitine supplementation on the performance, carcass traits and blood parameters of broiler chickens. .... treatment were frozen immediately at ~4 °C. The meat was separated manually from the bone and then homogenized using a ..... activated protein kinase in muscle during exercise. Am. J. Physiol. 270 ...

  18. Broiler walking ability and toe asymmetry under harsh rearing conditions

    Directory of Open Access Journals (Sweden)

    MS Baracho

    2012-09-01

    Full Text Available Morphological asymmetry has been described as a potential broiler welfare indicator, for interpreting the birds' ability to cope with the challenges that may affect its growth. The objective of this study was to evaluate the use of morphological asymmetry data to estimate broiler walking ability and welfare.dBroilers werefed diets supplemented or not with vitamin D. Toes were measured when birds were 42 and 49 days old using digital caliper.the left and right sides of the following four bilateral traits (tarsometatarsus length, outer toe length, mid toe length, and back toe length were measured twice on intact alive birds by two different researcherh. Data from right and left sides were compared in the two treatments using the Student t-test, and Pearson's correlation was used to analyze the total asymmetry found as a result of the total sum of the differences in the measurements. Asymmetry data were comparedwith the total numberof leg lesions. Mid toe and tarsometatarsus asymmetry resultswere considered as actual fluctuating asymmetry, and presented normal distribution (Test of Kolmogorov-Smirnov, p >0.05. However, back toe and outer toe measurements were not normally distributed, as determined by the test of Kolmogorov-Smirnov (p <0.05, indicating anti-asymmetry; when comparing right with left limb,results were significantly different fron zero (t-Student, p <0.05 indicating directional fluctuating asymmetry.The welfare of broilers withwalking difficulty due to the presence of severe asymmetry in limbs is poor.

  19. Changes of Some Blood Parameters of Broiler Chickens with Cold ...

    African Journals Online (AJOL)

    mohsen

    HDL-c) of the M.TRP- and. H.TRP-fed birds was .... thigh meat was measured on a spectrophotometer (Unico-2400, Japan) at a wavelength of 410 nm. The data were ..... activities in broiler chickens with cold-induced ascites. Poult. Sci.

  20. Human risk from thermotolerant Campylobacter on broiler meat in Denmark

    DEFF Research Database (Denmark)

    Boysen, Louise; Nauta, Maarten; Ribeiro Duarte, Ana Sofia

    2013-01-01

    This paper describes a new approach by which changes over time in the relative risk of human campylobacteriosis from broiler meat are evaluated through quantitative microbiological risk assessment modelling. Danish surveillance data collected at retail from 2001 to 2010 on numbers of thermotolera...

  1. Investigation of immune response to Eimeria maxima in broilers

    DEFF Research Database (Denmark)

    Hamzic, Edin; Bed'Hom, Bertrand; Juin, Hervé

    could limit the effects of the disease. In this study we focused on the impact of Eimeria maxima on different traits (e.g., weight gain, body temperature, blood composition, intestinal lesions scores, oocysts count) in two challenge experiments on commercial broilers (pilot then larger experiment...

  2. Growth performance and nutrient digestibility of broiler chickens fed ...

    African Journals Online (AJOL)

    Two hundred and seventy (270), day old chicks were used in a completely randomized design experimental layout to test the growth performance and nutrient digestibility of broiler chickens fed single phase diets containing natuzyme™ treated groundnut shell at 0, 5, 10, 15, 20 and 25 % inclusion levels. The treatments ...

  3. Kinetics of starch digestion and performance of broiler chickens

    NARCIS (Netherlands)

    Weurding, R.E.

    2002-01-01

    Keywords: starch, digestion rate, broiler chickens, peas, tapioca

    Starch is stored in amyloplasts of various plants like cereals and legumes and seeds of these plants are used as feedstuffs for farm animals. Starch is the major energy

  4. Enhancement of broiler performance and immune response by ...

    African Journals Online (AJOL)

    Administrator

    2011-09-19

    662. Ma A, Shi W, Niu X, Wang M, Zhong X (2009). Effects of Echinacea purpurea extract on the immunological response to infectious bursal disease vaccine in broilers. Front. Agr. China. 3:1-5. Maass N, Bauer J, Paulicks BR, ...

  5. Effect of supplementing fungi degraded cowpea seedhull in broiler ...

    African Journals Online (AJOL)

    The effect of inclusion of fungi degraded cowpea seedhull was investigated in a broiler study that lasted for eight weeks. The degraded seedhull was included at 0, 5, 10, 15 and 20% levels in a Completely Randomized Design experiment. The performance characteristics and heamatological parameters were evaluated.

  6. Performance Characteristics And Muscle Fat Contents Of Broiler ...

    African Journals Online (AJOL)

    ... 8.08, 12.12 and 16.16% dietary inclusion of POS. it was concluded that 8% dietary inclusion of POS was most beneficial considering muscle fat and economic returns. Keywords: Palm oil sludge, maize, broiler chickens, performance, carcass fat. Journal of Agriculture, Forestry and the Social Sciences Vol. 4 (2) 2006: pp.

  7. IMMUNE RESPONSE OF BROILER CHICKS TO LOCAL IBD ...

    African Journals Online (AJOL)

    The vaccine was administered using different routes; intramuscular, subcutaneous and oral. 10- day old broiler was randomly sampled from a group of 40 for the presence of IBD antibodies using qualitative and quantitative agar gel precipitation test (AGPT). The maternal antibodies in the chicks were variable, low and ...

  8. Erythrocyte indices and serum biochemical constituents of broiler ...

    African Journals Online (AJOL)

    One hundred and twenty (120) four weeks old Ross breed broiler finisher birds were used to study the effect of feeding maggot meal as a replacement for fish meal on erythrocyte indices and serum biochemical constituents. The birds were divided into 5 treatment groups identified as T1, T2, T3 , T4 and T5 with 24 birds per ...

  9. Performance and carcass characteristics of starter broiler chicks fed ...

    African Journals Online (AJOL)

    One hundred and twenty (120) one week old unsexed Cobb starter broiler chicks were randomly allotted to five experimental treatment diets of 24 birds each in a completely randomize design. The birds were divided into three replicates of 8 birds each, and were offered experimental diets contained 0.0, 5.0, 10.0, 15.0 and ...

  10. The response of broiler breeder hens to dietary balanced protein ...

    African Journals Online (AJOL)

    Two basal feeds (118 and 175 g protein/kg) with similar balanced amino acid mixtures were appropriately blended to produce six experimental diets differing in protein. These were fed for six weeks to 180 broiler breeder hens (Ross 308) housed in individual cages from 26 w of age. A 13 h photoperiod was applied. Half the ...

  11. Factors affecting wheat nutritional value for broiler chickens

    NARCIS (Netherlands)

    Gutierrez del Alamo Oms, A.

    2009-01-01

    In Europe, broiler chickens are fed with balanced diets where the energy is mainly supplied by wheat. The feed industry considers wheat a moderately uniform raw material and therefore its energy content and nutrient digestibility are taken from feeding tables (tabulated values) and assigned to all

  12. Environmental Enrichment for Broiler Breeders: An Undeveloped Field

    NARCIS (Netherlands)

    Riber, Anja B.; Jong, de Ingrid; Weerd, van de Heleen A.; Steenfeldt, Sanna

    2017-01-01

    Welfare problems, such as hunger, frustration, aggression, and abnormal sexual behavior, are commonly found in broiler breeder production. To prevent or reduce these welfare problems, it has been suggested to provide stimulating enriched environments. We review the effect of the different types of

  13. Fibrillar Collagen Organization Associated with Broiler Wooden Breast Fibrotic Myopathy.

    Science.gov (United States)

    Velleman, Sandra G; Clark, Daniel L; Tonniges, Jeffrey R

    2017-12-01

    Wooden breast (WB) is a fibrotic myopathy affecting the pectoralis major (p. major) muscle in fast-growing commercial broiler lines. Birds with WB are phenotypically detected by the palpation of a hard p. major muscle. A primary feature of WB is the fibrosis of muscle with the replacement of muscle fibers with extracellular matrix proteins, such as collagen. The ability of a tissue to be pliable and stretch is associated with the organization of collagen fibrils in the connective tissue areas surrounding muscle fiber bundles (perimysium) and around individual muscle fibers (endomysium). The objective of this study was to compare the structure and organization of fibrillar collagen by using transmission electron microscopy in two fast-growing broiler lines (Lines A and B) with incidence of WB to a slower growing broiler Line C with no phenotypically detectable WB. In Line A, the collagen fibrils were tightly packed in a parallel organization, whereas in Line B, the collagen fibrils were randomly aligned. Tightly packed collagen fibrils arranged in parallel are associated with nonpliable collagen that is highly cross-linked. This will lead to a phenotypically hard p. major muscle. In Line C, the fibrillar collagen was sparse in its distribution. Furthermore, the average collagen fibril diameter and banding D-period length were altered in Line A p. major muscles affected with WB. Taken together, these data are suggestive of different fibrotic myopathies beyond just what is classified as WB in fast-growing broiler lines.

  14. Impact of nutrition on welfare aspects of broiler breeder flocks

    NARCIS (Netherlands)

    Krimpen, van M.M.; Jong, de I.C.

    2014-01-01

    To ensure health and reproductive performance, broiler breeders are feed restricted during the rearing period and, to a lesser extent, during the production period. Although restricted feeding improves health and bird welfare, on the other hand the birds are chronically hungry and suffer from

  15. Performance and Energy Metabolism by Broiler Chickens Fed Maize ...

    African Journals Online (AJOL)

    Studies were conducted to evaluate the effect of replacing maize grain with different dietary levels of maize and millet offals on performance and energy metabolism in broiler chickens. Proximate composition and metabolizable energy (ME) values were determined. Feeding trial was also conducted to comparemaize and ...

  16. Genetic Variation among Broiler Genotypes in susceptibility to colibacillosis

    NARCIS (Netherlands)

    Ask, B.; Waaij, van der E.H.; Stegeman, J.A.; Arendonk, van J.A.M.

    2006-01-01

    Selection for reduced susceptibility to colibacillosis in broilers may contribute to the prevention of colibacillosis. Such selection should focus on the responses to Escherichia coli rather than the associated primary agent(s). The purpose of the current study was to examine whether genetic

  17. Performance, organ growth and economics of finisher broiler fed ...

    African Journals Online (AJOL)

    A 28-day feeding trial was conducted to evaluate the effects of dietary inclusion of neem (Azadirachta indica) leaf meal on the performance, organ growth and economics of finishing broilers. The harvested neem leaves were chopped and air dried under room temperature for ten days until they became crispy while retaining ...

  18. Performance and carcass yield of sexed broiler chickens reared on ...

    African Journals Online (AJOL)

    This study thereby determined the performance, carcass yield and meat composition of 300 sexed Arbor Acre broiler chickens reared on deep-litter and deep-litter with a run housing types. The birds were brooded for 2 weeks, differentiated into male and female by feather sexing and balanced for weight. Thereafter, 150 ...

  19. Male broiler performance and nocturnal feeding under constant 8-h ...

    African Journals Online (AJOL)

    When these data were pooled with previously reported data for female broilers, growth and feed conversion efficiency post 21 d and through to depletion for constant 8-h and birds transferred from 8 to 16 h at 20 d were significantly superior to constant 16-h birds. Constant 8-h birds ate about half their feed during the dark ...

  20. The Effect of Dietary Oils on Growth Performance of Broilers ...

    African Journals Online (AJOL)

    a

    were significantly influenced in almost all the groups, with the exception of Group D. Group D received the diet supplemented with 0.5% CLA, which prevented (P < 0.05) the vaccine induced decrease in performance. Table 2 The effects of dietary treatments on body weight recorded on a weekly basis in male broiler.

  1. Identification of avian Mycoplasma species in commercial broilers ...

    African Journals Online (AJOL)

    Sera were tested for MG and MS antibody responses by serum plate agglutination (SPA) test and by enzyme-linked immunosorbant assay (ELISA) Synbiotics kit. It was found that M. gallisepticum antibodies in broiler flocks detected by SPA and by ELISA tests were 10.47 and 19.76%, whereas M. synoviae were 7.86 and ...

  2. Nigella seed oil as alternative to avilamycin antibiotic in broiler ...

    African Journals Online (AJOL)

    This study was conducted to study the effect of nigella seed oil as an alternative to the antibiotic, avilamycin, on growth, digestibility, muscle fatty acid profile and some physiological parameters in broiler chickens. Fifty four chicks at 15 d of age (average weight, 320 ± 3 g) were divided into a control group and two treatment ...

  3. Utilization of Rice Offal in Practical Ration of Broilers. | Maikano ...

    African Journals Online (AJOL)

    ... two (finisher phase), broilers were fed with the finisher diets from 5-8 weeks and tolerated 15% rice offal inclusion in their diets with significant growth. In all experiments there was increase in feed intake as the level of rice offal increased. Keywords: Rice offal, chicken diets, starter phase, finisher phase. The Zoologist Vol.

  4. broiler finishers fed with processed mottle mucuna beans

    African Journals Online (AJOL)

    or reduce the adverse effects of the anti nutritionalfactors One hundred and thirty. five (135) chicks (Lehman strain), at 28 ... Attempts to reduce cost of feeding broilers and to ensure sustainable supply of feed include utilization of feed ingredients ..... Kumasi: Cita Printing Press Ltd. Okorie, JD. (1983). A Guide to Livestock ...

  5. Methionine in Velvet Bean (Mucuna pruriens) Based Broiler Starter ...

    African Journals Online (AJOL)

    levels of heat treated velvet beans on growth and carcass characteristics of finishing broilers was also investigated. There was no beneficial effect of .... All diets were prepared and fed in mash form. Birds were fed ad libitum from wooden ..... The results of this study showed no in- fluence of diet on the sizes of giblets, viscera.

  6. Feeding broiler breeder flocks in relation to bird welfare aspects

    NARCIS (Netherlands)

    Jong, de I.C.; Krimpen, van M.M.

    2011-01-01

    To ensure health and reproductive capacity of the birds, broiler breeders are fed restricted during the rearing period, and to a lesser extent also during the production period. Although restricted feeding improves health and thereby bird welfare, on the other hand the birds are chronically hungry

  7. Effects of varying protein levels on broiler performance when dietary ...

    African Journals Online (AJOL)

    In a 9· week long study, three hundred 5-day-old Cobb-100 commercial broiler chicks were fed five isocaloric diets containing 19, 20, 21, 22 and 23 pet cent crude protein respectively. Feed and water were supplied ad libitum. Feed intake, final body weight and body weight gain significantly (P

  8. Effects of varying protein levels on broiler performance when dietary ...

    African Journals Online (AJOL)

    Effects of varying protein levels on broiler performance when dietary energy levels remain constant. S A Osei, K Effah-Baah. Abstract. (Ghana Journal of Agricultural Science, 1987-90, 20-23: 21-24). Full Text: EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT · AJOL African Journals ...

  9. Physico - chemical chyme conditions and mineral absorption in broilers

    NARCIS (Netherlands)

    Klis, van der J.D.

    1993-01-01


    In the Netherlands the efficiency of mineral absorption from the gastrointestinal tract of farm animals is a topic of interest to reduce the mineral concentration in animal manure. This study was done with broilers. It was focused on physico-chemical chyme conditions. These

  10. Diagnosis of Broiler Livers by Classifying Image Patches

    DEFF Research Database (Denmark)

    Jørgensen, Anders; Fagertun, Jens; Moeslund, Thomas B.

    2017-01-01

    The manual health inspection are becoming the bottleneck at poultry processing plants. We present a computer vision method for automatic diagnosis of broiler livers. The non-rigid livers, of varying shape and sizes, are classified in patches by a convolutional neural network, outputting maps...

  11. Effects of a novel carbohydrate fraction on broiler performance and ...

    African Journals Online (AJOL)

    p2492989

    bacterial populations, gut morphology, effectiveness of digestion and feed utilization. It has been ... dietary mannan can protect the gastro-intestinal tract in ways other than just removing undesirable bacteria. ... a consistent improvement in piglet, sow, broiler and turkey performance (Hooge, 2004a; b; Miguel et al.,. 2004 ...

  12. Utilization of Rice Offal in Practical Ration of Broilers. | Maikano ...

    African Journals Online (AJOL)

    Effects of various graded levels of rice offal diets on broilers were investigated in two experiments, a starter phase and a finisher phase. In each experiment, rice offal was fed at graded levels of 0, 5, 10, 15 and 20% in a completely randomized design. In experiment one (starter phase) day old chicks were fed with starter ...

  13. Performance and haematological indices of broiler chickens fed ...

    African Journals Online (AJOL)

    The effects of Azadirachta indica (neem), Spondias mombin and Chromolaena odorata leaf meals as natural feed supplements on performance and haematology of broilers were evaluated. Two hundred and sixty-four 1 day-old Arbor acre chicks were divided randomly into six treatments and four replicates. Treatment 1 ...

  14. Response Of Finisher Broilers To Antibiotic and Enzyme ...

    African Journals Online (AJOL)

    A 28 – day feeding trial was conducted to evaluate the response of finisher broilers to antibiotic (neocloxin) and enzyme (Roxazyme G) supplemented diets. Three experimental diets were formulated such that diet 1 had neither enzyme nor antibiotic supplementation. Diets 2 and 3 contained antibiotic and enzyme ...

  15. Exploring the economic potential of reducing broiler lameness.

    Science.gov (United States)

    Gocsik, É; Silvera, A M; Hansson, H; Saatkamp, H W; Blokhuis, H J

    2017-08-01

    1. The present study was designed first to explore the potential economic benefits of adopting management practices to reduce lameness in broiler farms, and second to explore farmers' possible perceptions of this potential in the Swedish context. The likely financial effects were addressed using a normative economic model, whereas a questionnaire-based survey was used to obtain in-depth knowledge about the perceptions of a group of broiler farmers in Sweden. 2. The three alternative practices (out of 6 tested) which realised the greatest improvements in gross margin and net return to management compared to the conventional practice were feeding whole wheat, sequential feeding and meal feeding. 3. The model showed that the negative effect of feeding whole wheat on feed conversion rate was outweighed by the effect of a low feed price and the associated decrease in feed costs. The price of wheat played a major role in the improvement of economic performance, whereas the reduction of lameness itself made a relatively minor contribution. 4. Apparently, the surveyed farmers do not recognise the potential of the positive effects of changing feed or feeding practices on both broiler welfare and farm economics although their implementation can be of great importance in the broiler sector where profit margins are very tight.​.

  16. Broiler performance and bone strength minimally affected by either a ...

    African Journals Online (AJOL)

    Two genotypes of male broilers were given 12 h of daily illumination; as a conventional photoperiod, with the final hour at reduced illuminance to simulate dusk, or with 1 h of the light given during the middle of the night. The lighting modifications had no significant effect on any performance variable or on tibial breaking ...

  17. Histopathologic and apoptotic effect of nanosilver in liver of broiler ...

    African Journals Online (AJOL)

    Silver nanoparticles can destroy bacteria, viruses and fungi; therefore, it is recommended as a disinfectant and can be used as a drug in the treatment of some non-curable viral disease in livestock. The aim of the present investigation was to study the effects of nanosilver induced toxicity on the liver of broiler chickens.

  18. Genetic improvement for production and health in broilers

    NARCIS (Netherlands)

    Zerehdaran, S.

    2005-01-01

    The objective of present thesis was to optimize the genetic improvement of production and health traits in broilers. The genetic correlations among abdominal, subcutaneous, and intramuscular fat showed that there is a high genetic correlation between abdominal and subcutaneous fat (0.54), whereas

  19. The response of broiler breeder hens to dietary balanced protein

    African Journals Online (AJOL)

    Research

    2016-08-26

    Aug 26, 2016 ... overconsumption of protein and energy. Various estimates of the daily intake of protein required by broiler breeders to support egg production have been made by researchers in the past, these varying from 16.5 g/d, for individually housed breeders. (Pearson & Herron, 1982) to 22 g/d (Waldroup et al., ...

  20. Histopathology of the organs of Broiler Chickens exposed to flames ...

    African Journals Online (AJOL)

    Histopathology of the organs of broiler chickens exposed to the flame and fumes of refined petroleum product kerosene at varying distances over a period of 16hrs daily for 56 days in a poultry house were evaluated. Kerosene burning was simulated in a designed burner. Kerosene flame in a designed burner was placed 4, ...

  1. Oral treatment of Eimeria tenella -infected broilers using aqueous ...

    African Journals Online (AJOL)

    In Nigeria, wild Ganoderma species of mushroom grows in abundance during the rainy season. Studies were conducted to evaluate the haematological parameters and the histopathology lesions in organs of broilers treated with aqueous extract of wild Ganoderma sp. Blood and organs were collected for haematology and ...

  2. Do broiler chicks possess enough growth potential to compensate ...

    African Journals Online (AJOL)

    The results showed that extending post-hatch deprivation of feed and water had a significant negative impact on bird performance. Broilers deprived for 48 h had lower body weights, average daily gains and feed intakes compared to the control and to a lesser extent to the other treatments. Average daily gain, daily feed ...

  3. Staphylococcus agnetis, a potential pathogen in broiler breeders

    DEFF Research Database (Denmark)

    Poulsen, Louise Ladefoged; Thøfner, Ida; Bisgaard, Magne

    2017-01-01

    including bacteriological examination. In total 997 breeders were investigated and for the first time Staphylococcus agnetis was isolated in pure culture from cases of endocarditis and septicemia from 16 broiler breeders. In addition, the cloacal flora from newly hatched chickens originating from the same...

  4. Performance of starting broiler chicks on sandbox ( Hura crepitans ...

    African Journals Online (AJOL)

    A 21-day feeding trial was conducted to evaluate the feeding value of raw and cooked Sand box (Hura crepitans) seed meal for broiler chickens . Sand box seeds (100kg) were divided into two batches, the first batch was milled raw undicorticated with a hammer mill to produce raw sandbox meal, the second batch was ...

  5. Dressed and internal organ weights of broilers fed toasted pigeon ...

    African Journals Online (AJOL)

    Toasted seeds of pigeon pea (Cajanus cajan), a tropical legume grown in Nigeria were investigated to determine its effect on the dressed weight and internal organ weight characteristics of broilers. The dry, brown coat coloured pigeon pea seeds were toasted at 100°C for 15minutes, cooled, made into a meal and stored in ...

  6. Performance of broilers' finishers fed graded levels of Cassava peel ...

    African Journals Online (AJOL)

    The project was conducted to determine the performance of broiler finisher fed cassava peel -maggot meal mixture as partial or total replacement for maize. Thirty birds each were randomly allotted to each of 4 dietary treatments, replicated thrice in a completely randomized design in which the maize fraction of the diet was ...

  7. The mechanical properties of broiler chicken bones affected by ...

    African Journals Online (AJOL)

    The authors evaluated the effect of diet with different Zn levels on mechanical properties of bones in 120 broilers of Ross 308 hybrid, from 2 to 42 days of age, which were randomly divided into 2 groups, with 60 chickens each. The first group (Zn50) was fed commercial basal diet with no Zn additives (zinc content- 50 mg/kg ...

  8. Behavioral responses of broilers to different gaseous atmospheres

    NARCIS (Netherlands)

    Gerritzen, M.A.; Lambooij, E.; Hillebrand, S.J.W.; Lankhaar, J.A.C.; Pieterse, C.

    2000-01-01

    This study was conducted to determine the differences in behavioral response of broilers when they come into contact for the first time with gas mixtures that can be used for stunning. The six test groups were divided into four experimental groups that were exposed to gas mixtures used for stunning

  9. Effects of a novel carbohydrate fraction on broiler performance and ...

    African Journals Online (AJOL)

    This study was performed to determine the effects of a natural yeast-based feed ingredient (natural carbohydrate fraction (NCF) isolated from a specific strain of yeast) on broiler chickens, and to examine its mode of action. The trial was set up as a complete randomized design with three treatments and eight replicates (38 ...

  10. Nutrient Retention and Haematological Indices of Broiler Starters ...

    African Journals Online (AJOL)

    acer

    2National Animal Production Research Institute, Shika, Ahmadu Bello University, Zaria. 285. ABSTRACT: Studies were ... protein on nutrient retention and haematological parameters of broilers at the starter phase. Apparent crude protein, crude fibre .... digestibility of GNC, which was earlier reported by Oluyemi and Roberts ...

  11. Stress in Broiler Chickens Due to Acute Noise Exposure

    Directory of Open Access Journals (Sweden)

    Petr Chloupek

    2009-01-01

    Full Text Available Stress effects from acute noise exposure were monitored in a group of ROSS 308 broiler chickens (n = 80, aged 42 days. The experiment simulated slaughterhouse sounds to which the broilers were exposed for 10 min in the test enclosure. Effects of acute noise exposure at two different levels (80 dB and 100 dB were evaluated on the basis of examinations of selected biochemical plasma indicators and tonic immobility tests. Noise stimuli of both 80 dB and 100 dB intensities for 10 min induced a significant elevation in plasma corticosterone levels. Broilers that were exposed to noise stimuli of 100 dB also exhibited a significant increase in the cholesterol level and total protein level. Exposure to noise stimuli did not influence the glucose level and triglyceride concentrations. The duration of tonic immobility was not affected by noise stimuli in our experiment. However, noise exposure at a 100 dB level decreased the number of attempts to induce tonic immobility in broilers.

  12. Assessment of microbial profile of selected proprietary broiler ...

    African Journals Online (AJOL)

    Bacterial and fungal isolates recovered include Escherichia coli, Staphylococcus albus, Bacillus subtilis, Micrococcus spp, Pseudomonas spp, Aspergillus fumigatus, A. flavus, A. niger, Fusarium spp, Mucor spp, and Penicillium notatum. Total microbial ... Keywords: Broiler, Feeds, Quality control, Bacteria, Fungi, Mycotoxins ...

  13. Dutch Consumers’ Willingness to Pay for Broiler Welfare

    NARCIS (Netherlands)

    Mulder, Machiel; Zomer, Sigourney

    2017-01-01

    This article analyzes Dutch consumers’ willingness to pay (WTP) for the welfare of broiler chickens and the consequences for nonhuman animal welfare policies. Using data from a discrete-choice experiment and a random parameter logit model, this study showed that consumers particularly value

  14. Efficiency of sepiolite in broilers diet as uranium adsorbent

    Energy Technology Data Exchange (ETDEWEB)

    Mitrovic, Branislava M.; Lazarevic-Macanovic, Mirjana; Krstic, Nikola [University of Belgrade, Department of Radiology and Radiation Hygiene, Faculty of Veterinary Medicine, Belgrade (Serbia); Jovanovic, Milijan [University of Belgrade, Department of Veterinary Pathology, Faculty of Veterinary Medicine, Belgrade (Serbia); Janackovic, Djordje [University of Belgrade, Faculty of Technology and Metallurgy, Belgrade (Serbia); Stojanovic, Mirjana [University of Belgrade, Institute for Technology of Nuclear and Other Mineral Row Materials, Belgrade (Serbia); Mirilovic, Milorad [University of Belgrade, Department of Economics and Statistics, Faculty of Veterinary Medicine, Belgrade (Serbia)

    2015-05-15

    The use of phosphate mineral products in animal nutrition, as a major source of phosphor and calcium, can lead to uranium entering the food chain. The aim of the present study was to determine the protective effect of natural sepiolite and sepiolite treated with acid for broilers after oral intake of uranium. The broilers were contaminated for 7 days with 25 mg/uranyl nitrate per day. Two different adsorbents (natural sepiolite and sepiolite treated with acid) were given via gastric tube immediately after the oral administration of uranium. Natural sepiolite reduced uranium distribution by 57 % in kidney, 80 % in liver, 42 % in brain, and 56 % in muscle. A lower protective effect was observed after the administration of sepiolite treated with acid, resulting in significant damage of intestinal villi in the form of shortening, fragmentation, and necrosis, and histopathological lesions on kidney in the form of edema and abruption of epithelial cells in tubules. When broilers received only sepiolite treated with acid (no uranyl nitrate), shortening of intestinal villi occurred. Kidney injuries were evident when uranium concentrations in kidney were 0.88 and 1.25 μg/g dry weight. It is concluded that adding of natural sepiolite to the diets of broilers can reduce uranium distribution in organs by significant amount without adverse side effects. (orig.)

  15. Response of Broilers to Different Sources of Vitamin C | Bolu ...

    African Journals Online (AJOL)

    The response of broilers to different sources of vitamin C was investigated using a completely randomized experimental design. Vitamin C concentration in the baobab pulp was determined to be 250mg/100g baobab pulp. Feed intake, weight gain, feed utilization efficiency and mortality were not different (P<0.05) for the ...

  16. Assessment of toxic elements in selected Nigeria broiler feeds using ...

    African Journals Online (AJOL)

    In this study, Neutron Activation Analysis (NAA) was used to determine the concentrations of some toxic elements Mn, Cr, Zn, Fe, Co, Sr, La, Sm, Th and Se in some selected Nigeria broiler feed samples. Each sample (A, B, C, and D) represents certain brand of the feeds. The work was carried using the Nigeria Research ...

  17. Towards a physiological feeding strategy for protein in broilers

    NARCIS (Netherlands)

    Doeschate, ten R.A.H.M.

    1995-01-01

    The present thesis describes the development of a physiological feeding strategy for protein in broilers. This project was initiated to improve the efficiency of deposition of dietary nitrogen into animal product in order to reduce nitrogen excretion to the environment. The physiological

  18. Performance and carcass characteristics of finisher broilers fed ...

    African Journals Online (AJOL)

    A total of 96, four weeks old broiler birds of Anak strain were subjected to 42 days feeding trial at the poultry unit of Imo State Polytechnic Teaching and Research Farm, Umuagwo in Ohaji/Egbema LGA of Imo State, Nigeria to determine the effect of sun-dried cattle plasma (SDCP) on their performance and carcass ...

  19. Comparative Performance Of Broiler Chicks fed Diets Containing ...

    African Journals Online (AJOL)

    Part of the soaked seeds were sun-dried and milled. The remaining part were cooked, sun-dried and milled. The second batch was cracked, soaked in water for 48 hours and cooked before sun drying and milling. Both meals were analyzed for their proximate composition and included in broiler starter diets at 20% dietary ...

  20. Significance of chick quality score in broiler production

    NARCIS (Netherlands)

    Ven, van de L.J.F.; Wagenberg, van A.V.; Uitdehaag, K.A.; Groot Koerkamp, P.W.G.; Kemp, B.; Brand, van den H.

    2012-01-01

    The quality of day old chicks is crucial for profitable broiler production, but a difficult trait to define. In research, both qualitative and quantitative measures are used with variable predictive value for subsequent performance. In hatchery practice, chick quality is judged on a binomial scale,

  1. Meat quality characteristics of sexed broiler chickens reared on ...

    African Journals Online (AJOL)

    This study determined meat quality characteristics of 300 sexed Arbor Acre broiler chickens reared on deep-litter and deep-litter with a run housing systems. After brooding for 2 weeks, a total of 75 male and female chicks, respectively were confined on deep litter and on deep litter with a run having three replications of 25 ...

  2. Performance of broilers on furazolidone additive | Wekhe | Nigerian ...

    African Journals Online (AJOL)

    One hundred and twenty Anak broiler chicks of both sexes were fed furazolidone (additive) in feed to study their growth/weight gain response. The birds were grouped into four, A, B, C, and D of 30 chicks each Treatments B, C and D were administered with furazolidone in feed at the following dosage rates: 0.008%, 0.004% ...

  3. Repeatability estimates of growth traits in arbor acre broiler chickens ...

    African Journals Online (AJOL)

    Two hundred (200) Arbor Acre broiler chickens fed four different diets containing 0 (control), 4, 6, and 8% (unconventional) probiotics enhanced Moringa Oleifera seed meal (PEMOSM) were used to estimate repeatability (R) of growth traits during the starter (0-4 weeks) and finisher phases (5-7weeks). The traits considered ...

  4. Performance And Carcass Characteristics Of Broiler Chicken Fed ...

    African Journals Online (AJOL)

    Performance And Carcass Characteristics Of Broiler Chicken Fed High Fibre Sunflower Seed Cake Diets. ... 05) differences were in liveweight, plucked and dressing percentages at the starter and finisher phases. Reduction in abdominal fat deposition was obtained at the starter and finisher phases while gizzard weights ...

  5. Broiler meat quality: Proteins and lipids of muscle tissue ...

    African Journals Online (AJOL)

    Proteins and lipids of muscle tissue are important meat quality parameters. They contribute substantially to the nutritional characteristics of meat. A number of studies has been conducted on the effect of different factors on the protein and lipid content of broiler meat. Given the above, the subject matter of the present paper ...

  6. Feeding broiler breeders to improve their welfare whilst maintaining productivity

    DEFF Research Database (Denmark)

    Steenfeldt, Sanna; Nielsen, Birte Lindstrøm

    of their litter may have affected their thermoregulation. This experiment indicates that high fibre diets can alleviate the feeling of hunger currently experienced by broiler breeders, and a high ratio of insoluble fibre can reduce stereotypies and may improve the well-being of the birds....

  7. Utilisation of synthetic amino acids by broiler breeder hens | Nonis ...

    African Journals Online (AJOL)

    This study was conducted to examine the response of broiler breeder hens to feeds supplemented with synthetic lysine and methionine when fed once or twice daily during peak production. Replacing intact protein with increasing amounts of free lysine and methionine, up to 2.3 g/kg feed, had no effect on feed intake, ...

  8. Performance of chicken broilers fed with diets substituted with ...

    African Journals Online (AJOL)

    user

    mulberry leaf powder compared to other diets during week 1 and 2. No mortality was recorded in broilers fed diet containing up to 30% mulberry leaf powder. In conclusion, this study showed that mulberry leaf powder can substitute up to 30% of commercial feed without any adverse effect on the feed intake, growth, FCR ...

  9. Feeding Programs for Broiler Breeders in the Start Phase

    Directory of Open Access Journals (Sweden)

    J Tremarin

    Full Text Available ABSTRACT The fast-growing Brazilian aviculture requires studies to improve zootechnical performance indexes for broiler breeders. The purpose of this study was to assess different feeding programs for broiler breeders on performance and development of digestive organs. A total of 48,000, 1d-old, Cobb 500 broiler breeders were divided into two sheds with 24,000 birds each. The experiment was randomized in block design, considering each shed a block, with 4 treatments and 6 replications per treatment with 2,000 birds in each. Treatments consisted of: Shed 1 T1 = starter feed; T2 = T1 + probiotics; Shed 2 T3 = pre-starter feed; T4 = T3 + probiotics. The productive performance characteristics (bird weight, weight gain, feed intake and feed conversion, the development of digestive organs (gizzard, proventriculus, spleen, bursa of Fabricius and small bowel as well as the small bowel length were assessed weekly for all experimental groups, in samples of 10 birds per treatment. The best feed conversion and weight gain were observed with pre-starter feed in the first 7 days of age, with or without probiotic. Small bowel, gizzard and proventriculus development at 28 days was better for birds on pre-starter feed compared to those on starter feed alone. It is possible to conclude that broiler breeders on pre-starter feed during the first 7 days of age are likely to show better physical and productive performances in the adult phase.

  10. Physiological response of heat stressed broiler chickens to ...

    African Journals Online (AJOL)

    Effect of supplementing the drinking water of broilers reared under natural heat stress with ammonium chloride (NH4Cl), sodium bicarbonate (NaHCO3), calcium chloride (CaCl2) and ascorbic acid (AA) on physiological response was investigated. A 200, one-day Arbor acre chicks were randomly allotted to five treatments in ...

  11. Observation on the growth of hubbard parent stock broilers raised ...

    African Journals Online (AJOL)

    A study was carried out to monitor the effect of feed manipulation on the growth and development of male and female line Hubbard broiler parent stock reared under tropical open sided poultry house without any form of cooling system or any temperature regulating mechanism. A total of 255 females and 105 males for the ...

  12. Supplementation of plant protein with amino acids for broiler production

    NARCIS (Netherlands)

    Al-Azzawi, I.I.

    1964-01-01

    A diet of sesame oilmeal, maize and barley supplemented with adequate lysine 0.50-0.78 (in total 1.18%-1.23% of the diet) was a suitable diet for fast growing chickens to produce broilers weighing approximately 1 kg in 7 weeks. The average feed intake per unit gain in the 7th week was 2.149 for

  13. Sensory evaluation and tibia bone retention of broiler chicken fed ...

    African Journals Online (AJOL)

    An experiment was conducted for 56 days to assess the sensory evaluation of breast meat sample and tibia bone mineralization of broiler chicken fed graded level of toasted sesame seed meal. One hundred and eighty arbor acre chicks were divided into five dietary treatments. Each treatment was replicated thrice with ...

  14. The Microbiologic Quality of the Air in Broiler Houses

    Directory of Open Access Journals (Sweden)

    Silvana Popescu

    2010-10-01

    Full Text Available The aim of this paper was to assess the microbiologic quality of air in broiler houses. The number of bacteria (mesophile, staphylococci, streptococci and gram-negatives and fungi was determined in 6 broiler houses with chicken of different ages (1-6 weeks old through specific methods. The results were statistically processed by using the SPSS software, version 17. The number of bacteria and fungi varied in the 6 broiler houses, ranging from 2.25 x 105 to 2.17 x 106 for the total number of mesophilic bacteria, between 3.5 x 104 – 1.27 x 106 for staphylococci, 7.4 x 104 – 5.01 x 105 for streptococci, 3.5 x 103 – 1.53 x 104 for gram-negatives and from 1.67 x 104 to 8.13 x 104 for fungi, respectively. The number of bacteria and fungi were significantly lower for the younger chicken (p < 0.05. The proportions of groups with hygienic significance within the total mesophilic bacteria number were: 15.7% - 68.6% staphylococci, 6.7% - 45.6% streptococci and 0.2% - 4.5% gram-negatives. The comparative appraisal of the microbiologic quality in the broiler houses showed better air quality in the youngest chicken’s house (one week of age. The obtained results indicate the necessity for increased ventilation and for air disinfection during the chicken’s fattening period.

  15. Prevalence and antimicrobial susceptibility of thermophilic Campylobacter in organic and conventional broiler flocks

    DEFF Research Database (Denmark)

    Heuer, Ole Eske; Pedersen, Karl; Andersen, J.S.

    2001-01-01

    and sixty broiler flocks originating from organic, conventional and extensive indoor production farms were investigated for the presence of Campylobacter at the time of slaughter. Campylobacter isolates from a subsample of positive flocks were subjected to susceptibility testing. Campylobacter spp. were...... isolated from 100% of organic broiler flocks, from 36.7% of conventional broiler flocks and from 49.2% of extensive indoor broiler flocks. Six of 62 Campylobacter isolates were resistant to one or more of the antimicrobials tested. Conclusions: These results indicate that the special characteristics...... of organic broiler production provide a high prevalence of Campylobacter positive flocks. Antimicrobial resistance was scarce among Campylobacter isolates from all rearing systems. Significance and Impact of the Study: Organic broiler flocks constitute a strong potential for introduction of Campylobacter...

  16. Effect of different electrolyte balances in broiler diets

    Directory of Open Access Journals (Sweden)

    UM Arantes

    2013-09-01

    Full Text Available The aim of this study was to evaluate the performance, tibial density and mineral content, Na, K ,and Cl serum levels, and dry matter content of the litter of broilers fed diets with different levels of dietary electrolyte balances. Two experiments were carried out: during the starter phase (7 to 21 days of age, 960 broilers and during the growe phase (22 to 38 days of age, 816 broilers. In both experiments, a completely randomized design with four treatments based on dietary electrolyte balance values (200, 240, 280 and 320 mEq/kg of diet with four replicates was applied. Birds and diets were weighed when birds were seven, 14 and 21 days of age in the first experiment, and 22 and 38 days of age in the second experiment in order to determine weight gain, feed intake and feed conversion. Final body weight, weight gain, feed intake and feed conversion and mortality rate were evaluated. On days 21 and 38, the left tibia of two birds per replicate was collected to determine bone density and the serum was used for Na and K analysis. Litter dry matter content was also determined on days 21 and 38 . There was no effect of dietary electrolyte balance values on broilers performance between 7 and 14, 7 and 21, or 22 and 38 days of age, tibial bone density and mineral content, or on Na, K and Cl serum levels. Litter dry matter was linearly reduced as dietary electrolyte balance value increased. Diets with 200 mEq/kg may be recommended for broilers from 7 to 38 days of age with no negative influence on the evaluated parameters.

  17. Bacterial chondronecrosis with osteomyelitis and lameness in broilers: a review.

    Science.gov (United States)

    Wideman, Robert F

    2016-02-01

    This review focuses on a specific cause of lameness known as bacterial chondronecrosis with osteomyelitis (BCO) in broilers. Rapid increases in body weight impose excessive torque and shear stress on structurally immature epiphyseal and physeal cartilage, primarily in the proximal femora, proximal tibiae, and flexible thoracic vertebrae. Excessive mechanical stress creates osteochondrotic clefts among the chondrocytes of susceptible growth plates. These wound sites are colonized by hematogenously distributed opportunistic bacteria, culminating in the gross abscesses and necrotic voids that are pathognomonic for terminal BCO. Lameness attributable to characteristic BCO lesions can be reproduced by rearing broilers on wire flooring to create persistent footing instability and physiological stress, without the need to inoculate the birds with pathogenic bacteria that presumably are present but quiescent within the bird's microbial communities or in the environment. Experiments using the wire-flooring model revealed innate differences in the susceptibility of broiler lines to BCO, and demonstrated that BCO incidences can be reduced by prophylactically providing probiotics in the feed, by prophylactically adding 25-hydroxy vitamin D3 to the drinking water, or by therapeutically adding the antibiotic enrofloxacin to the drinking water. Hatchery and chick quality issues clearly influence the susceptibility of broilers to BCO. When broilers remain in a sitting posture for prolonged periods, the major arteries supplying their legs may be compressed. These episodes of inadequate blood flow may prevent chondrocyte maturation and trigger focal necrosis, thereby making the epiphyseal and physeal cartilage highly susceptible to osteochondrosis and BCO. Much remains to be revealed regarding the pathogenesis of BCO. Further revelations will be facilitated by the availability of the now-validated wire-flooring models that consistently trigger high incidences of BCO in experimental

  18. STRATEGI PENGEMBANGAN KEMITRAAN TERNAK AYAM BROILER PT. XYZ

    Directory of Open Access Journals (Sweden)

    Latifa Hanum

    2011-11-01

    Full Text Available Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} The objectives of this research are to (1 analyze profit and BEP of plasma farmers (2 analyze internal and external strategic factors that influence development of broiler partnership in PT. XYZ, (3 formulate the alternative strategies of broiler partnership in PT. XYZ, (4 formulate selected priority strategy to develop broiler partnership in PT. XYZ. This research uses descriptive method based on case study on broiler partnership in PT. XYZ. Based on BEP analysis, BEP (production of plasma farmers is in the range 79,91%-86,58% from chick-in capacity, and BEP (price is in the range of Rp 11.684 – Rp 12.191 per chicken on market price. PT. XYZ partnership’s position in IE matric was second quadrant (grow and builds. The results of SWOT analysis are: a vertical integration strategy through feedmill, breeding and chicken slaughterhouse, b improving production capacity through capacity building of plasma farmers, c improvement in bio-security aspects of maintenance, and d improving the quality of technical staff and improving supervision. The priority strategy from QSPM analysis is improving production capacity through capacity building of plasma farmers. The strategy to improve production capacity can be done by maximize or add their capacity, and add the new plasma farmers.   Keywords: Broiler Partnership, Internal Environment, External Environment, Internal-external, Improvement Priority

  19. Leg disorders in broiler chickens: prevalence, risk factors and prevention.

    Directory of Open Access Journals (Sweden)

    Toby G Knowles

    Full Text Available Broiler (meat chickens have been subjected to intense genetic selection. In the past 50 years, broiler growth rates have increased by over 300% (from 25 g per day to 100 g per day. There is growing societal concern that many broiler chickens have impaired locomotion or are even unable to walk. Here we present the results of a comprehensive survey of commercial flocks which quantifies the risk factors for poor locomotion in broiler chickens. We assessed the walking ability of 51,000 birds, representing 4.8 million birds within 176 flocks. We also obtained information on approximately 150 different management factors associated with each flock. At a mean age of 40 days, over 27.6% of birds in our study showed poor locomotion and 3.3% were almost unable to walk. The high prevalence of poor locomotion occurred despite culling policies designed to remove severely lame birds from flocks. We show that the primary risk factors associated with impaired locomotion and poor leg health are those specifically associated with rate of growth. Factors significantly associated with high gait score included the age of the bird (older birds, visit (second visit to same flock, bird genotype, not feeding whole wheat, a shorter dark period during the day, higher stocking density at the time of assessment, no use of antibiotic, and the use of intact feed pellets. The welfare implications are profound. Worldwide approximately 2 x 10(10 broilers are reared within similar husbandry systems. We identify a range of management factors that could be altered to reduce leg health problems, but implementation of these changes would be likely to reduce growth rate and production. A debate on the sustainability of current practice in the production of this important food source is required.

  20. Lighting during grow-out and Salmonella in broiler flocks

    Directory of Open Access Journals (Sweden)

    Bailey Richard H

    2010-06-01

    Full Text Available Abstract Background Lighting is used during conventional broiler grow-out to modify bird behaviour to reach the goals of production and improve bird welfare. The protocols for lighting intensity vary. In a field study, we evaluated if the lighting practices impact the burden of Salmonella in broiler flocks. Methods Conventional grow-out flocks reared in the states of Alabama, Mississippi and Texas, USA in 2003 to 2006 were sampled 1 week before harvest (n = 58 and upon arrival for processing (n = 56 by collecting feathered carcass rinsate, crop and one cecum from each of 30 birds, and during processing by collecting rinsate of 30 carcasses at pre-chilling (n = 56 and post-chilling points (n = 54. Litter samples and drag swabs of litter were collected from the grow-out houses after bird harvest (n = 56. Lighting practices for these flocks were obtained with a questionnaire completed by the growers. Associations between the lighting practices and the burden of Salmonella in the flocks were tested while accounting for variation between the grow-out farms, their production complexes and companies. Results Longer relative duration of reduced lights during the grow-out period was associated with reduced detection of Salmonella on the exterior of birds 1 week before harvest and on the broiler carcasses at the post-chilling point of processing. In addition, starting reduced lights for ≥18 hours per day later in the grow-out period was associated with decreased detection of Salmonella on the exterior of broilers arriving for processing and in the post-harvest drag swabs of litter from the grow-out house. Conclusions The results of this field study show that lighting practices implemented during broiler rearing can impact the burden of Salmonella in the flock. The underlying mechanisms are likely to be interactive.

  1. Porinas as an adyuvant of inactivated Newcastle vaccine in broilers

    Directory of Open Access Journals (Sweden)

    Francisco Bustos M.

    2005-05-01

    Full Text Available Three groups of 25 broilers were vaccinated on two opportunities by aerosol using inactivated NC (Newcastle virus and different helper concentrations of porinas (20 ìg, 50 ìg, 125 ìg. A fourth group was injected with live B1 virus (12 and 28 days of age nasally. The NC inactivated virus (La Sota strain was concentrated 10 times with PEG with a final titer of 1:2.056. Twenty serums for each group were taken in order to evaluate NC antibodies using the HI and double immuno-difusion tests for IgA detection at 1, 12, 28 and 42 days of age. During the study the chickens were on a restricted diet in order to control ascites (2.640 mosl. On day 42, two broilers of the fourth group (live virus presented ascites and 1 broiler of group 1 presented lung edema (20 ìg. The geometric mean for NC antibodies titers at 42 days of age was 2 in the groups 1,2,3 and 5.7 in the group 4 (Log 2. For IgA, 180 mg/dl, 135 mg/dl, 120 mg/dl and 176 mg/dl respectively. Three broilers of each group were challenged with a pathogenic strain of NC, at 42 day of age, without signs of disease after 72 hours when the positive control group was dead. Gross and microscopic lesions were not detected in the bursa of Fabricius or thymo. [thymo sounds like short hand for something that should be properly named.] Very good animal weight, conversion and efficiency results were observed in all the groups. New studies using a fixed dose of porinas, larger numbers of broilers and the establishment of protective levels of IgA against NC challenge are recommended.

  2. The effect of genotype on production and slaughter properties of broiler chickens

    OpenAIRE

    Petričević V.; Pavlovski Z.; Škrbić Z.; Lukić M.

    2011-01-01

    Objective of the research was to investigate the effect of genotype on production and slaughter properties of broiler chickens. The usual technology of broiler production was implemented, therefore fattening lasted 42 days. Trial included total of 2070 broiler chickens of following hybrids: Cobb 500, Ross 308 and Hubbard Classic. Chickens of genotypes Cobb 500 and Ross 308 realized significantly higher average body masses compared to Hubbard chickens. The h...

  3. Featherless and feathered broilers under control versus hot conditions. 1. Breast meat yield and quality.

    Science.gov (United States)

    Hadad, Yair; Halevy, Orna; Cahaner, Avigdor

    2014-05-01

    The improved genetic potential of contemporary commercial broilers cannot be fully expressed under hot conditions that depress growth rate, decrease breast meat yield, and reduce meat quality. The negative heat effects are attributed to the insulating feather coverage, which, under high ambient temperatures (AT), hinders dissipation of the excessive internally produced heat. Accordingly, featherless broilers (sc/sc), their feathered sibs (+/sc), and contemporary broilers (+/+) were subjected to control AT (26°C) and hot AT (32°C) to test the hypothesis that lack of feathers contributes to higher breast muscle yield and better meat quality, especially under hot conditions, and that differences related to lack of feathers are related to cardiovascular capacity. In 2 similar trials, the superior genetic background of the contemporary broilers was manifested under control conditions; their mean BW was about 15% higher than the means of the featherless broilers and their feathered sibs. The hot conditions depressed BW of the 2 feathered groups by approximately 25%, with hardly any effect on featherless broiler BW. Breast meat yield (% of BW) in the featherless broilers was higher than in those with feathers, especially under the hot AT. Furthermore, the featherless broilers were characterized by superior meat quality as indicated by lower drip loss, lower lightness, and higher redness. The superior meat quality of the featherless broilers could be explained by their larger hearts and higher hematocrit values, suggesting superior cardiovascular capacity to supply oxygen and nutrients to the breast muscles. On the practical side, the results clearly indicate that modern featherless broilers can reach normal BW, as well as yield and quality of breast meat, under hot conditions as well. It appears that broiler meat production in hot regions and climates can be substantially improved by introducing the featherless gene into contemporary commercial broiler stocks. This has

  4. The effect of dietary phytase on broiler performance and digestive, bone, and blood biochemistry characteristics

    OpenAIRE

    JPL de Sousa; LFT Albino; RGMV Vaz; KF Rodrigues; GF Da Silva; LN Renno; VRSM Barros; IN Kaneko

    2015-01-01

    The dietary inclusion of phytase increases nutrient and energy bioavailability for broilers. The effect of phytase increases nutrients and energy bioavailability for either the objective of this experiment was to evaluate the influence of nutrient and energy reduction in diets supplemented with phytase on the performance, gastrointestinal pH, organ and bone composition, and blood biochemistry of broilers between eight and 21 days of age. In the study, 1.120 male Cobb 500(r) broilers, with 161...

  5. Immunomodulatory Activity of Meniran Extracts (Phyllanthus Niruri Linn.) on Broiler Chickens

    OpenAIRE

    Aldi, Yufri; Rasyadi, Yahdian; Handayani, Dian

    2014-01-01

    Broilers chickens are highly susceptible to many diseases caused by bacteria and viruses. Therefore to solve these problem we can use alternative medicine by administration of immunostimulatory compounds that can prevent disease in broiler chickens. One of the plants that can enhance the immune system is meniran. The study effect of immunomodulatory test from ethanol extract of meniran herbs (Phyllanthus niruri Linn.) has been conducted in broiler chickens with carbon clearance method. The st...

  6. Influence of combinations of fenugreek, garlic, and black pepper powder on production traits of the broilers

    OpenAIRE

    Kirubakaran, A.; Moorthy, M.; Chitra, R.; Prabakar, G.

    2016-01-01

    Aim: To study the effects of combinations of fenugreek (Trigonella foenum-graecum L.), garlic (Allium sativum), and black pepper (Piper nigrum) powder supplementation on production traits of broiler chickens. Materials and Methods: A total of 288 commercial broiler chicks were randomly assigned to 1-9 groups with 4 replicates each. An experiment was conducted in broilers with different feed formulations; control feed, with no added fenugreek, garlic, and black pepper powder; and 8 treatmen...

  7. Response of broiler to skip a day (SAD) feeding | Oyedeji | Nigerian ...

    African Journals Online (AJOL)

    One hundred and eighty day-old broilers were used to investigate the response of broilers to skip-a-day feeding regime. Broiler chicks were either fed ad libitium or subjected to 1,2,3,4 or 5 week skip-a-day feeding thereafter fed ad libitium to market age. Result at market age showed that feed intake was significantly ...

  8. Effect of different levels of L-carnitine and lysine-methionine on broiler blood parameters

    OpenAIRE

    Babak Hosseintabar; Mohammad Dadashbeiki; Mehrdad Bouyeh; Alireza Seidavi; René van den Hoven; Sandra Gamboa

    2015-01-01

    ABSTRACT Objetive. In the present study a completely randomized 3×3 factorial design was used to analyze the effects of different levels of L-Carnitine, lysine(Lys) and methionine (Met) on the blood concentrations of energy, protein and lipid metabolites of male broiler chickens. Materials and methods. A total of 270 newly hatched male broiler chickens (Ross 308) were randomly assigned to 9 groups (ten broilers per replicate and three replicates per treatment). The control group was fed a bas...

  9. An l-Arginine supplement improves broiler hypertensive response and gut function in broiler chickens reared at high altitude

    Science.gov (United States)

    Khajali, Fariborz; Moghaddam, Maryam Heydary; Hassanpour, Hossein

    2014-08-01

    An experiment was carried out to examine the effects of supplemental dietary arginine (ARG) on growth, hypertensive response, and gut function in broilers reared at high altitude (2,100 m). A total of 120 day-old male broilers (Cobb 500) were divided equally into two treatment groups. Treatments included a control basal diet composed of corn and soybean meal and an experimental diet to which an l-ARG supplement was added at 10 g/kg. The trial lasted for 42 days. There were no treatment differences with regard to feed intake, body weight gain, or feed conversion ratio. However ARG supplementation did increase the plasma concentration of nitric oxide, a potent vasodilator ( P < 0.05), and attenuated indices of pulmonary hypertension as reflected by reductions in the hematocrit and the right to total ventricular weight ratio ( P < 0.05). Significantly enhanced intestinal mucosal development was observed in broilers receiving ARG supplement when compared with controls ( P < 0.05), suggesting that ARG supplementation increased the absorptive surface area of the jejunum and ileum. In conclusion, broiler diets supplemented with ARG beneficially improved pulmonary hemodynamics and appeared to enhance gut function.

  10. Extended-spectrum-ß-lactamase- and AmpC-ß-lactamase-producing Escherichia coli in Dutch broilers and broiler farms

    NARCIS (Netherlands)

    Dierikx, C.M.; Goot, van der J.A.; Fabri, T.; Essen-Zandbergen, van A.; Smith, H.E.; Mevius, D.J.

    2013-01-01

    Objectives The aim of this study was to establish the prevalence of extended-spectrum ß-lactamase (ESBL)- and AmpC ß-lactamase-producing Escherichia coli at Dutch broiler farms and in farmers and to compare ESBL/AmpC-producing isolates from farmers and their animals. Methods Twenty-five to 41

  11. Associations among gait score, production data, abattoir registrations, and postmortem tibia measurements in broiler chickens.

    Science.gov (United States)

    Kittelsen, K E; David, B; Moe, R O; Poulsen, H D; Young, J F; Granquist, E G

    2017-05-01

    Lameness and impaired walking ability in rapidly growing meat-type broiler chickens are major welfare issues that cause economic losses. This study analyzed the prevalence of impaired walking and its associations with production data, abattoir registrations, and postmortem tibia measurements in Norwegian broiler chickens. Gait score (GS) was used to assess walking ability in 59 different commercial broiler flocks (Ross 308) close to the slaughter d, 5,900 broilers in total, in 3 different geographical regions. In each flock, 100 arbitrary broilers were gait scored and 10 random broilers were culled to harvest tibias. Abattoir registrations on flock level were collected after slaughter. A total of 24.6% of the broilers had moderate to severe gait impairment. The broilers were sampled in 2 stages, first slaughterhouse/region, and then owner/flock. The final models showed that impaired gait is associated with first-week mortality (P broiler industry in Norway, although the mean slaughter age is only 31 d and the maximum allowed animal density is relatively low. Impaired walking ability could not be predicted by the welfare indicators footpad lesion score, total on-farm mortality, and decreasing DOA prevalence. Further studies are needed to explore the relationship between first-week mortality and gait score. © 2016 Poultry Science Association Inc.

  12. Stacking Time and Aluminum Sulfate Effects on Polyether Ionophores in Broiler Litter.

    Science.gov (United States)

    Doydora, Sarah A; Sun, Peizhe; Cabrera, Miguel; Thompson, Aaron; Love-Myers, Kimberly; Rema, John; Calvert, Vaughn; Pavlostathis, Spyros G; Huang, Ching-Hua

    2015-11-01

    The use of ionophores as antiparasitic drugs plays an important role in US poultry production, especially in the broiler () industry. However, administered ionophores can pass through the bird's digestive system and appear in broiler litter, which, when applied to agricultural fields, can present an environmental hazard. Stacking (storing or stockpiling) broiler litter for some time might decrease the litter ionophore concentrations before land application. Because ionophores undergo abiotic hydrolysis at low pH, decreasing litter pH with acidic aluminum sulfate (alum) might also decrease ionophore concentrations. We assessed the change in ionophore concentrations in broiler litter in response to the length of time broiler litter was stored (stacking time) and alum addition. We spiked broiler litter with monensin and salinomycin, placed alum-amended litter (∼pH 4-5) and unamended litter (∼pH 8-9) into 1.8-m bins, and repeatedly sampled each bin for 112 d. Our findings showed that stacking broiler litter alone did not have an impact on monensin concentration, but it did slowly reduce salinomycin concentration by 55%. Adding alum to broiler litter reduced monensin concentration by approximately 20% relative to unamended litter, but it did not change salinomycin concentration. These results call for continued search for alternative strategies that could potentially reduce the concentration of ionophores in broiler litter before their application to agricultural soils. Copyright © by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc.

  13. Changes in selected biochemical indices resulting from various pre-sampling handling techniques in broilers

    National Research Council Canada - National Science Library

    Chloupek, Petr; Bedanova, Iveta; Chloupek, Jan; Vecerek, Vladimir

    2011-01-01

    .... This study focused on detection of changes in the corticosterone level and concentrations of other selected biochemical parameters in broilers handled in two different manners during blood sampling...

  14. Effect of air deflectors on fan performance in tunnel-ventilated broiler houses with a dropped ceiling

    Science.gov (United States)

    Air velocity is a critical design parameter for modern commercial broiler houses, owing to the beneficial effects of increased cooling on live performance and thermal comfort in broiler chickens. As a result, design velocities have increased over the last 15 years and broiler growers have installed ...

  15. Composting and gypsum amendment of broiler litter to reduce nutrient leaching loss.

    Science.gov (United States)

    Adeli, Ardeshir; Sheng, J; Jenkins, J N; Feng, G

    2015-03-01

    The effect of composted litter relative to fresh litter on leaching losses of nutrients has not been well documented. Fresh and composted broiler litter was surface-applied to bermudagrass (hay) [ (L.) Pers.] established in undisturbed soil columns based on N need of the grass in the presence or absence of flue gas desulfurization (FGD) gypsum to evaluate an approach to reduce broiler litter nutrient leaching potential. Columns were periodically leached and biomass was harvested during the 60-d experiment. Total N applied to bermudagrass from broiler litter was 320 kg ha. Gypsum was mixed with fresh and composted litter at the rate based on 20% of litter weight. For composted broiler litter, NO-N, P, K, Cu, and Zn contents in the leachate obtained from the first leaching event were 58, 50, 40, 32, and 38% less than fresh broiler litter, respectively. Significant decreases in NO-N (13%), P (53%), Cu (17%), and Zn (28%) in leachate were obtained when gypsum was mixed with fresh broiler litter. Fresh broiler litter and composted broiler litter applications increased bermudagrass growth compared with the control and gypsum significantly increased yields when mixed with broiler litter. Composted broiler litter application significantly increased N and organic C in the soil compared with fresh litter. Results demonstrate that coapplication of composted broiler litter with FGD gypsum provide the most effective management option for minimizing leaching losses of nutrients while sustaining crop productivity. Copyright © by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc.

  16. Protective Roles of Sodium Selenite against Aflatoxin B1-Induced Apoptosis of Jejunum in Broilers

    Directory of Open Access Journals (Sweden)

    Xi Peng

    2014-12-01

    Full Text Available The effects of aflatoxin B1 (AFB1 exposure and sodium selenite supplementation on cell apoptosis of jejunum in broilers were studied. A total of 240 one-day-old male AA broilers were randomly assigned four dietary treatments containing 0 mg/kg of AFB1 (control, 0.3 mg/kg AFB1 (AFB1, 0.4 mg/kg supplement Se (+ Se and 0.3 mg/kg AFB1 + 0.4 mg/kg supplement Se (AFB1 + Se, respectively. Compared with the control broilers, the number of apoptotic cells, the expression of Bax and Caspase-3 mRNA were significantly increased, while the expression of Bcl-2 mRNA and the Bcl-2/Bax ratio were significantly decreased in AFB1 broilers. The number of apoptotic cells and the expression of Caspase-3 mRNA in AFB1 + Se broilers were significantly higher than those in the control broilers, but significantly lower than those in AFB1 broilers. There were no significant changes in the expression of Bax mRNA between AFB1 + Se and control broilers; the expression of Bcl-2 mRNA and the Bcl-2/Bax ratio in AFB1 + Se broilers were significantly lower than those in the control broilers, but significantly higher than those in AFB1 broilers. In conclusion, 0.3 mg/kg AFB1 in the diet can increase cell apoptosis, decrease Bcl-2 mRNA expression, and increase of Bax and Caspase-3 mRNA expression in broiler’s jejunum. However, supplementation of dietary sodium selenite at the concentration of 0.4 mg/kg Se may ameliorate AFB1-induced apoptosis by increasing Bcl-2 mRNA expression, and decreasing Bax and Caspase-3 mRNA expression.

  17. Isolation of Lactic Acid Bacteria from Malaysian Non-Broiler Chicken (Gallus gallus Intestine with Potential Probiotic for Broiler Feeding

    Directory of Open Access Journals (Sweden)

    Tengku Haziyamin Tengku Abdul Hamid

    2011-12-01

    Full Text Available Probiotic supplement can function as substitute for antibiotics especially in the broiler chicken feeding which can form an integral part of organic farming. Broiler forms one of an important protein source in South East Asia. Lactic acid bacteria (LAB are important inhabitants of animal intestine and are useful source of probiotic microorganisms. Non-broiler chicken could be an ideal source of probiotic microorganisms that can be utilized for large scale broiler feeding. Our studies have successfully identified, through morphological and biochemical tests, 11 LAB isolates from gastrointestinal tract of local non-broiler chicken (Gallus gallus. These isolates have the ability to utilize lactose as part of their metabolism process and all showed negative reactions on catalase test. Out of the eleven (11 isolates, three (3 isolates were Gram-positive cocci and remaining isolates were of Gram-positive bacilli. Three isolates (E4, E11 and E17 showed at least 10 mm inhibitory effects on disc diffusion test against pathogenic bacteria Salmonella typhimurium. The partial 16S rRNA gene sequencing showed that one isolate (E17 has 89% similarity with Lactobacillus rhamnosus. These LAB strains isolated from Malaysian domestic non-broiler chicken gastrointestinal tract can potentially be used as a component for probiotics formulation in poultry feeding.ABSTRAK: Makanan tambahan probiotik boleh berfungsi sebagai pengganti antibiotik terutamanya dalam pemakanan ayam pedaging yang akan membentuk bahagian kamiran dalam penternakan organik. Ayam pedaging merupakan sumber protein penting di Asia Tenggara. Bakteria asid laktik (lactic acid bacteria (LAB merupakan penghuni penting dalam usus haiwan dan merupakan sumber penting dalam mikroorganisma probiotik. Ayam bukan pedaging sesuai dijadikan sumber mikroorganisma probiotik agar dapat digunakan sebagai pemakanan ayam pedaging secara besar-besaran. Kajian telah berjaya mengenal pasti, melalui kaedah morfologi dan

  18. Spread of Extended Spectrum Cephalosporinase-Producing Escherichia coli Clones and Plasmids from Parent Animals to Broilers and to Broiler Meat in a Production Without Use of Cephalosporins

    DEFF Research Database (Denmark)

    Agersø, Yvonne; Jensen, Jacob Dyring; Hasman, Henrik

    2014-01-01

    selects for ESC-producing E. coli and whether certain clones or plasmids spread from imported parent flocks to the meat. Materials and Methods: ESC-producing E. coli was isolated using MacConkey broth with 1 mg/L of ceftriaxone. ESC genes were identified using polymerase chain reaction and sequencing...... of ESC E. coli. Conclusions: ESC-producing E. coli from flocks of imported broiler parents spread clonally and horizontally to broiler meat (including potentially human pathogenic types) even in a country with no cephalosporin use. Use of aminopenicillins may influence the persistence of ESC-producing E....... coli in the broiler production, but other factors should be investigated....

  19. Effect of clenbuterol on growth performance in broilers

    Directory of Open Access Journals (Sweden)

    Ortiz M. R.

    2000-01-01

    Full Text Available The objective of this study was to evaluate the effect of clenbuterol (CB, a beta2-adrenergic agonist, as a growth and weight gain promoter in broilers. Effects of CB were assessed, mixing it in feed at 0.0, 0.21, 0.42 and 0.84ppm, and feeding during four weeks to four groups (n=75 of 28 day-old Arbor Acres chickens. The body weight (BW and food intake at 0, 12, 20 and 28 days of the study were recorded. Also abdominal fat (AF and total muscle proteins were measured. Results indicate that from day 20 until the last of the experimental period (56-day-old, efficacy of CB was evident to increase growth and decrease AF deposition rates (P<0.01, in a dose-response pattern, suggesting that CB has a profitable growth promoting effect in broiler chickens.

  20. Foodborne disease prevention and broiler chickens with reduced Campylobacter infection

    DEFF Research Database (Denmark)

    Bahrndorff, Simon; Rangstrup-Christensen, Lena; Nordentoft, Steen

    2013-01-01

    Studies have suggested that flies play a linking role in the epidemiology of Campylobacter spp. in broiler chickens and that fly screens can reduce the prevalence of Campylobacter spp. We examined the year-round and long-term effects of fly screens in 10 broiler chicken houses (99 flocks......) in Denmark. Prevalence of Campylobacter spp. positive flocks was significantly reduced, from 41.4% during 2003-2005 (before fly screens) to 10.3% in 2006-2009 (with fly screens). In fly screen houses, Campylobacter spp. prevalence did not peak during the summer. Nationally, prevalence of Campylobacter spp....... positive flocks in Denmark could have been reduced by an estimated 77% during the summer had fly screens been part of biosecurity practices. These results imply that fly screens might help reduce prevalence of campylobacteriosis among humans, which is closely linked to Campylobacter spp. prevalence among...

  1. Choosing a Commercial Broiler Strain Based on Multicriteria Decision Analysis

    Directory of Open Access Journals (Sweden)

    Hosseini SA

    2014-05-01

    Full Text Available With the complexity and amount of information in a wide variety of comparative performance reports in poultry production, making a decision is difficult. This problem is overcomed only when all data can be put into a common unit. For this purpose, five different decision making analysis approaches including  Maximin, Equally likely, Weighted average, Ordered weighted averages and Technique for order preference by similarity to ideal solution were used to choose the best broiler strain among three ones based on their comparative performance and carcass characteristics. Commercial broiler strains of 6000 designated as R, A, and C (each strain 2000 were randomly allocated into three treatments of five replicates. In this study, all methods showed similar results except Maximin approach. Comparing different methods indicated that strain C with the highest world share market has the best performance followed by strains R and A.

  2. Chlorpyrifos chronic toxicity in broilers and effect of vitamin C

    Directory of Open Access Journals (Sweden)

    A.M. Kammon

    2011-02-01

    Full Text Available An experiment was conducted to study chlorpyrifos chronic toxicity in broilers and the protective effect of vitamin C. Oral administration of 0.8 mg/kg body weight (bw (1/50 LD50 chlorpyrifos (Radar®, produced mild diarrhea and gross lesions comprised of paleness, flaccid consistency and slightly enlargement of liver. Histopathologically, chlorpyrifos produced degenerative changes in various organs. Oral administration of 100 mg/kg bw vitamin C partially ameliorated the degenerative changes in kidney and heart. There was insignificant alteration in biochemical and haematological profiles. It is concluded that supplementation of vitamin C reduced the severity of lesions induced by chronic chlorpyrifos toxicity in broilers.

  3. Bio-Chemical Evaluation of Yam Peel Meal for Broiler Chickens ...

    African Journals Online (AJOL)

    The nutritional properties and inclusion levels of yam peel meal (YPM) in broiler diets were investigated. Four diets in which YPM substituted maize at 0, 25, 50 and 75% were fed to 180 Anak broiler-type chickens over a 63-day period. Results indicated that YPM contained 89.74% dry matter (DM), 12.03% crude protein ...

  4. Effect of Herbal Immunodulator on Body weight gain in immunosuppressed broiler birds

    Directory of Open Access Journals (Sweden)

    S.G. Mode

    Full Text Available The herbal immunomodulator was evaluated in immunosupressed broiler birds in terms of body weight gain. The treatment with Ocimum sanctum and Emblica officinalis @ 3 gm /kg feed for 2 weeks were found to be effective immunomodulator in increasing body weight gain in broiler birds. [Vet World 2009; 2(7.000: 269-270

  5. Effect of an outdoor run and natural light on welfare of fast growing broilers.

    NARCIS (Netherlands)

    Ruis, M.A.W.; Coenen, E.; Harn, van J.; Lenskens, P.; Rodenburg, T.B.

    2004-01-01

    Environmental enrichment may provide a solution to moderate several welfare problems in broiler production. Broilers are often housed in closed houses, with a minimum of resources for performing motivated behaviours. By providing more resources, the birds may be stimulated to become more active, and

  6. Mineral adsorbents in broilers nutrition: Effects on yield and meat quality

    Directory of Open Access Journals (Sweden)

    Okanović Đorđe G.

    2014-01-01

    Full Text Available In this paper are presented the results of investigation of the application of mineral adsorbents in broiler diet. Total of 400 broilers Cobb 500 provenience were divided into 4 groups: control group (C of broilers fed without added mineral adsorbent; 1st group with added Min-a-zel in the amount of 0.5%; 2nd group with added Min-a-zel Plus in the amount of 0.2%; and 3rd group with added Min-a-zel Plus in the amount of 0.3%. Fattening lasted for 42 days. Broilers were reared on the floor stocking system; feed and water supply were ad libitum. Fattening performances such as live body weight, feed consumption, feed conversion ratio and production number were better in group of broilers that was fed a diet with added mineral adsorbents. Broilers from the 1st group achieved the highest live weight and had the lowest feed consumption and feed conversion ratio, and also the best production number. Slaughter characteristics of broilers in the 1st group were also the best. They had the biggest share of the most valuable parts, breast and drumsticks. Obtained results showed that mineral adsorbents can be successfully used as additives in the diets for broilers for improved production and better fattening performances.

  7. The feeding value of mango seed kernal meal in broiler diets | Faniyi ...

    African Journals Online (AJOL)

    % levels (w/w) in broiler starter and finisher diets in an eight week feeding trial. 120 day - old broiler chicks were used for the experiment. 30 chicks were randomly assigned to each of the four treatments in a completely randomised design.

  8. Effects of Basil ( Ocimum basilicum L.) on the Haematology of Broiler ...

    African Journals Online (AJOL)

    ... Blood Cell (WBC) counts were not significantly (p>0.05) different across subplots. The study reveals that Basil (Ocimum basilicum L.) has no major effects on the hematological parameters of broiler chicks at the different levels of inclusion studied. Keywords: Broiler, coccidiosis, sporulated oocysts, Ocimum basilicum, feed, ...

  9. Composting and gypsum amendment of broiler litter to reduce nutrient leaching loss

    Science.gov (United States)

    Relative to fresh broiler litter, little is known about the dynamics of composted litter derived-nutrient in the ecosystem. In this study, the potential leaching losses of nutrients from compost relative to fresh broiler litter along with flue gas desulfurization (FGD gypsum), as a nutrient immobil...

  10. Effects of light ingress through ventilation fan apertures on selected blood variables of male broilers

    Science.gov (United States)

    Increasing broiler house size and ventilation capacity have resulted in increased light ingress through ventilation system component apertures. The effective photoperiod for broilers may create local increases in light intensity, which may also impact broiler’ body homeostasis. The objective of this...

  11. Genome-Wide Association Study for Response to Eimeria maxima Challenge in Broilers

    DEFF Research Database (Denmark)

    Hamzic, Edin; Bed'hom, Bertrand; Hérault, Frédéric

    Use of genetic tools for improvement of host’s response is considered as a promising complementary approach for coccidiosis control. Therefore, we performed genome wide association study (GWAS) for response to Eimeria maxima challenge in broilers. The challenge was done on 2024 Cobb500 broilers. ...

  12. Performance, blood parameters and meat yield in broiler chickens supplemented with Mexican oregano oil

    Science.gov (United States)

    This study was conducted to evaluate the inclusion of Mexican oregano oil (MOO) Lippia berlandieri Schauer in broiler diets during grow-out on performance, blood parameters, and meat yield. One hundred and sixty-two one-day-old broilers, randomly divided into three equal groups (treatments): CON =...

  13. Feed withdrawal of broilers before transport changes plasma hormone and metabolite concentrations

    NARCIS (Netherlands)

    Nijdam, E.; Delezie, E.; Lambooij, E.; Nabuurs, M.J.A.; Decuypere, E.; Stegeman, J.A.

    2005-01-01

    Two experiments were completed to observe the combined effects of feed withdrawal and the catching and transport process on stress and energy metabolism. During one experiment 192 male broilers (46 d of age) were used, and in the other we used 240 male broilers (49 d of age). The experiments

  14. Development and nutrient metabolism of embryos from two modern broiler strains

    NARCIS (Netherlands)

    Nangsuay, A.; Meijerhof, R.; Anker, van den I.; Heetkamp, M.J.W.; Kemp, B.; Brand, van den H.

    2015-01-01

    A progressive selection for broiler live and processing performance traits has changed broiler growth patterns during the post hatch period. However, limited information is available to understand whether changes have also occurred during the embryonic stages. This study aims to examine influences

  15. Differences in egg nutrient availability, development, and nutrient metabolism of broiler and layer embryos

    NARCIS (Netherlands)

    Nangsuay, A.; Molenaar, R.; Meijerhof, R.; Anker, van den I.; Heetkamp, M.J.W.; Kemp, B.; Brand, van den H.

    2015-01-01

    Selection for production traits of broilers and layers leads to physiological differences, which may already be present during incubation. This study aimed to investigate the influence of strain (broiler vs layer) on egg nutrient availability, embryonic development and nutrient metabolism. A total

  16. Effect of feeding different levels of corn snack waste on broiler ...

    African Journals Online (AJOL)

    This study was conducted to investigate the effect of using corn snack waste on growth performance, carcass traits and economical efficiency of broiler chicks. Five hundred Ross 308 day-old broiler chicks were divided randomly into 20 pens. There were 25 chicks in each pen which consists of 4 treatments (4 levels of waste ...

  17. Humic acid and enzymes in canola-based broiler diets: Effects on ...

    African Journals Online (AJOL)

    The objective of the study was to investigate the effects of dietary inclusion of humic acid and enzymes on bone development, histomorphology of internal organs and the incidence of rickets in broiler chickens fed canola-based diets. In the study, Cobb 500 broiler chicks were used and the following five dietary treatments ...

  18. A role for flies (Diptera) in the transmission of Campylobacter to broilers?

    DEFF Research Database (Denmark)

    Royden, A.; Wedley, A.; Merga, J. Y.

    2016-01-01

    demonstrated that the flies were carrying broiler-associated sequence types, responsible for human enteric illness. Malaise traps were used to survey the dipteran species diversity on study farms and also revealed up to 612 flies present around broiler-house ventilation inlets over a 2-h period. Therefore...

  19. Instrumental texture characteristics of broiler pectoralis major with the woody breast condition

    Science.gov (United States)

    The objective was to characterize texture properties of raw and cooked broiler fillets (pectoralis major) with the woody breast condition (WBC) using instrumental texture techniques Meullenet-Owens Razor Shear (MORS) and texture profile analysis (TPA). Deboned (3 h postmortem) broiler fillets were c...

  20. Effects of scalding method and sequential tanks on broiler processing wastewater loadings

    Science.gov (United States)

    The effects of scalding time and temperature, and sequential scalding tanks was evaluated based on impact to poultry processing wastewater (PPW) stream loading rates following the slaughter of commercially raised broilers. On 3 separate weeks (trials), broilers were obtained following feed withdrawa...

  1. Identification of campylobacteria isolated from Danish broilers by phenotypic tests and species-specific PCR assays

    DEFF Research Database (Denmark)

    Wainø, M; Bang, Dan; Lund, Marianne

    2003-01-01

    To validate a phenotypic Campylobacter species identification method employed to identify campylobacters in broilers by comparison with campylobacterial species identification using various species-specific PCR analyses.......To validate a phenotypic Campylobacter species identification method employed to identify campylobacters in broilers by comparison with campylobacterial species identification using various species-specific PCR analyses....

  2. Effects of β-Mannanase on broiler performance, gut morphology and ...

    African Journals Online (AJOL)

    mannanase on performance, gut morphology and some blood proteins and leucocytes of broilers provided with diets based on corn and soybean meal. Broiler chickens are divided four group and supplied diet which contains 0, 500, 700, or 900 g/ton ...

  3. Effects of Dietary Palm Oil on the Performance of Broiler Chicks ...

    African Journals Online (AJOL)

    Studies were conducted to assess the effect of replacing maize with palm oil at 0, 2, 4 and 6% inclusion levels, on the performance of broiler chicks. One, hundred and forty-four day old broiler chicks of Anak strain were weighed and randomly assigned to the four experimental diets. Each treatment group of 36 birds was ...

  4. Influence of activity and dietary energy on broiler performance, carcase yield and sensory quality

    NARCIS (Netherlands)

    Lei, S.; Beek, van G.

    1997-01-01

    1. A total of 2560 male and female Ross broilers were raised to 42 days of age in a 2 X 2 treatment factorial arrangement experiment to investigate the influence of different degrees of physical activity and dietary energy on broiler performance, abdominal fat content, carcase yield and sensory

  5. Evaluation of the " testing and scheduling" strategy for control of Campylobacter in broilers in The Netherlands

    NARCIS (Netherlands)

    Nauta, M.J.; Wal, van der F.J.; Putirulan, F.F.; Post, J.; Kassteele, van de J.; Bolder, N.M.

    2009-01-01

    “Testing and scheduling” has been proposed as a strategy for control of Campylobacter in broiler meat. By this strategy, flocks with high numbers of Campylobacter in fecal samples would be diverted away from fresh meat production at the entrance of the broiler meat processing plant. Risk assessment

  6. Associations between vaccinations against protozoal and viral infections and Salmonella in broiler flocks

    Science.gov (United States)

    Reducing the burden of Salmonella in broiler flocks presents a challenge for public health and for sustainability of the industry. A number of other infections are simultaneously controlled in grow-out broilers world-wide by vaccination. The purpose of this exploratory analysis was to test, in a f...

  7. WELFARE OF BROILERS INGESTING A PRE-SLAUGHTER HYDRIC DIET OF LEMON GRASS

    Directory of Open Access Journals (Sweden)

    AFB Royer

    2015-09-01

    Full Text Available ABSTRACTThe pre-slaughter period is considered critical in broiler production. Several factors contribute to increase the birds' stress, such as handling, harvesting, and transportation, negatively affecting their welfare. This study aimed at evaluating the addition of lemon grass (Cymbopogon citratusStapf to the drinking water of broilers during the pre-slaughter period on their behavior, blood cortisol, and surface temperature. The study was carried out at the experimental farm of the Federal University of Grande Dourados (UFGD, Dourados, MS, Brazil. In total, 2594 broilers were distributed according to a completely randomized experimental design, in a 3x2x2 factorial arrangement, with four replicates per treatment. Treatments consisted of three different lemon grass levels (Cymbopogon citratus Stapf used in the form of an infusion (0, 0.1, and 5 g per L of water, sex (male or female, and genetic strain (Ross(r 308 or Cobb(r 500. The infusion was offered when birds were 42 days old. On that day, blood was collected for blood cortisol level determination, broiler surface temperature was recorded, and an ethogram was applied to register broiler behavior. Blood cortisol level and broiler surface temperature were not affected by treatments (p>0.05. The behavior of beak opening was different between the genetic strains (p<0.05, being more frequent in Ross(r 308 broilers. Lemon grass water content did not affect broilers' surface temperature when consumed during the pre-slaughter period.

  8. Splitting the scotoperiod: effects on feeding behaviour, intestinal fill and digestive transit time in broiler chickens

    DEFF Research Database (Denmark)

    Duve, Linda Rosager; Steenfeldt, Sanna; Thodberg, Karen

    2011-01-01

    1. The aim of this study was to evaluate how splitting the dark period (scotoperiod) affects feeding behaviour and associated intestinal measures in broilers. 2. Ross 308 broilers were reared to 37 d in groups given either a daily 8-h continuous scotoperiod (DARK 8) or an intermittent light sched...

  9. Performance in broiler chickens supplemented with Mexican oregano oil Lippia berlandieri Schauer

    Science.gov (United States)

    The objective of this research was to evaluate the inclusion of two qualities of Mexican oregano oil (MOO) in the broiler diet on broiler weight, feed intake, feed efficiency, average daily gain, and water intake. The qualities were MOO1 (4% thymol, 60% carvacrol) and MOO2 (40% thymol, 20% carvacro...

  10. Apparent and true amino acid digestibility of artemia meal in broiler ...

    African Journals Online (AJOL)

    Apparent and true amino acid digestibility of artemia meal in broiler chicks (Short communication) ... South African Journal of Animal Science ... to determine the amino acid digestibility of artemia meal, five-week old male broiler chicks were given a semi-purified diet in which artemia meal was the sole source of protein.

  11. Starch digestion in the small intestine of broiler chickens differs among feedstuffs

    NARCIS (Netherlands)

    Weurding, R.E.; Veldman, A.; Veen, W.A.G.; Aar, van de P.J.; Verstegen, M.W.A.

    2001-01-01

    Dietary starch is the major energy source for broiler chickens, and knowledge about its digestive behavior can be important. In a digestibility trial with 720 broiler chickens, site, rate and extent of starch digestion were measured for 12 feedstuffs. Starch digestion was determined using the

  12. Brazilian propolis effects on performance, gut characteristics and physiological changes in broiler chickens

    Science.gov (United States)

    This study was to determine the effect of dietary propolis on the growth performance, physiological homeostasis and gut characteristics in broiler chickens reared under mild chronic heat stress (32 celsius), 9 hours daily for 28 days. Five hundred and four 15-d-old male broiler chicks were fed one o...

  13. Effect of propolis supplementations on behavioral activities of heat stressed broiler chickens

    Science.gov (United States)

    This experiment investigated effects of dietary supplementation of green Brazilian propolis on behavior of heat stressed broiler chickens. Five hundred and four 15-day old male Ross 708 broiler chicks were randomly allotted to six dietary treatments containing 0, 100, 250, 500, 1000 or 3000 mg kg-1 ...

  14. Growth pattern of the ross broiler in the humid tropical environment ...

    African Journals Online (AJOL)

    Growth performance of the Ross broiler chicks during an 8th week growing period was studied, in the humid tropical environment of Imo State, Nigeria, using growth data derived from 100 broiler chicken, consisting of 57 males and 53 females. Weekly mean body weight of males and females ranged between 44.24 and ...

  15. Survival of naturally occurring Campylobacter in refrigerated and frozen rinsate from a broiler carcass

    Science.gov (United States)

    The objective of this study was to determine if naturally occurring Campylobacter in a broiler carcass rinsate could survive in cold or frozen storage. Ten commercial broiler carcasses were each rinsed with 500 ml of Butterfield’s buffer and all carcasses tested positive for the presence of 104-105...

  16. Egg fertility and hatchability in Avians broiler-breeder hens under ...

    African Journals Online (AJOL)

    Impact of temperature and humidity in different month of lay was evaluated on fertility and hatchability in broiler breeder hens reared in Sapele, Nigeria. Six million, six hundred and nineteen thousand, seven hundred and forty six eggs from flocks of Avians broiler-breeder hens reared between 2005 and 2006 in a farm ...

  17. Spread without known selective pressure of a vancomycin-resistant clone of Enterococcus faecium among broilers

    NARCIS (Netherlands)

    Nilsson, O.; Greko, C.; Top, Janetta; Franklin, A.; Bengtsson, B.

    The aim of this paper was to describe an increased occurrence of vancomycin-resistant enterococci (VRE) in Swedish broilers since 2000 and to investigate the genetic relatedness of isolates. Caecal content from slaughtered broilers was cultured for VRE on medium supplemented with vancomycin (16

  18. Perinatal broiler physiology between hatching and chick collection in 2 hatching systems

    NARCIS (Netherlands)

    Ven, van de L.J.F.; Wagenberg, van A.V.; Decuypere, E.; Kemp, B.; Brand, van den H.

    2013-01-01

    Little is known about physiological responses of early- versus late-hatching chicks to early posthatch conditions in broiler practice. We investigated effects of hatching time on perinatal broiler physiology in 2 hatching systems, differing in conditions: a conventional hatcher, where chicks are

  19. The effect of dietary protein on breast meat yield of broilers reared ...

    African Journals Online (AJOL)

    The objective of the trial reported here was to determine whether breast meat yield would improve in broilers reared on short daylengths if higher levels of dietary protein were fed. To that end, 3200 Ross 308 International broilers were reared to 35 d in eight light-tight rooms, each room being divided into four pens which ...

  20. Effect of Feeding Open-Air Dried Broiler Litter on Nutrient ...

    African Journals Online (AJOL)

    Fifty-four (Large White strain) grower pigs were used to evaluate broiler litter as potential feedstuff for growing-finishing pigs. Pigs were randomly allotted to one of three dietary treatments; O, 15 and 30 % broiler litter inclusion levels. Each treatment was replicated six times with three pigs/replicate in a completely ...

  1. A simple approach to recycle broiler litter as animal feed | Makinde ...

    African Journals Online (AJOL)

    Broiler litter (BL) is a major waste from poultry production that constitutes serious disposal and environmental pollution problems globally despite its potential as animal feed. Therefore, the objective of this study was to develop a simple procedure for converting broiler litter into animal feed using wheat offal (WO) and cattle ...

  2. The effect of Brazilian propolis on serum thyroid hormones in broilers reared under chronic heat stress

    Science.gov (United States)

    This experiment evaluated the effect of dietary supplement with green Brazilian propolis on serum thyroxin (T4) and tri-iodothyronine (T3) levels in broiler chickens exposed to chronic heat stress for 4 wks (from 15 to 42 d of age). Five hundred and four 15-d-old, male broiler chickens (Ross 708) w...

  3. Direct and maternal genetic effects for ascites-related traits in broilers

    NARCIS (Netherlands)

    Pakdel, A.; Arendonk, van J.A.M.; Vereijken, A.L.J.; Bovenhuis, H.

    2002-01-01

    The objective of the present study was to estimate heritabilities for ascites-related traits in broilers and to assess the importance of maternal genetic effects for these traits. Several traits related to ascites were measured on more than 4,000 broilers kept under cold conditions. Heritabilities

  4. Cost-effectiveness of Campylobacter interventions on broiler farms in six European countries

    NARCIS (Netherlands)

    Wagenberg, van C.P.A.; Horne, van P.L.M.; Sommer, H.M.; Nauta, M.J.

    2016-01-01

    Broilers are an important reservoir for human Campylobacter infections, one of the leading causes of acute diarrheal disease in humans worldwide. Therefore, it is relevant to control Campylobacter on broiler farms. This study estimated the cost-effectiveness ratios of eight Campylobacter

  5. CARNOSINE CONTENT AND MUSCLE OXIDATIVE STABILITY OF MALE AND FEMALE BROILER CHICKENS

    Directory of Open Access Journals (Sweden)

    Gordana Kralik

    2011-12-01

    Full Text Available Carnosine is a dipeptide with antioxidative effects in broiler muscles. Its anti-ageing effect has also been determined recently, which is especially important for human health and vitality preservation. The research investigated concentration of carnosine in breast and thigh muscles of Cobb 500 broilers. It was carried out on 20 male and female broilers that were conventionally fattened for 42 days. Carnosine concentrations and TBARS values were measured on fresh breast and thigh muscles with respect to broiler sex. Content of carnosine was slightly higher in female broiler breast muscles than in male’s (1079.85 : 1012.66 μg/g tissue; P>0.05. Female broiler thigh muscle tissue also contained higher carnosine values than male’s (464.69 : 404.97 μg/g tissue; P>0.05. The research proved that carnosine was more deposited in breast muscle tissue than in thigh muscle tissue, regardless of broiler sex. Lipid peroxidation products measured as TBARS values (mg MDA/kg tissue did not statistically differ according to broiler sex or muscle type (P>0.05. Further research needs to be directed towards control of peroxidation products during meat storage.

  6. Use of different types of enrichment in slower growing broilers : a pilot study

    NARCIS (Netherlands)

    Jong, de I.C.; Wijhe-Kiezebrink, van M.C.

    2014-01-01

    The results of a pilot study to the use of different types of enrichment (perches, platforms, pecking object, Lucerne bales) in slower growing broilers during two subsequent cycles in a commercial broiler house are described. Based on counts of the birds using the enrichments, platforms were

  7. Weight Gain Of Broiler Chicks Fed A Maize-Soya bean Diet ...

    African Journals Online (AJOL)

    An experiment was carried out to investigate the effect of substituting synthetic methionine with sodium sulphate and sodium sulphite in a maize-soyabean diet fed to broiler chicks. Two hundred and forty (240) unsexed Hubbard day old broiler chicks were fed iso-caloric and iso-trogenous maize-soyabean ...

  8. Effects of false yam tuber meals and charcoal on broiler chicken ...

    African Journals Online (AJOL)

    2017-10-04

    Oct 4, 2017 ... Abstract. The authors investigated the effects of replacing a portion of a commercial broiler feed with false yam tuber meals on broiler growth performance, feed conversion rate (FCR) and blood parameters. Furthermore, wood charcoal was added at various levels to the meals to explore their potential to ...

  9. Replacement of fish meal with maggots in broiler diets: Effects on ...

    African Journals Online (AJOL)

    Replacement of fish meal with maggots in broiler diets: Effects on performance and nutrient retention. JO Atteh, FD Ologbenla. Abstract. The effects of replacing O, 33.3, 66.7 or 100% of dietary fish meal (9%) with housefly maggots (Musca domestica. Linn) was investigated using broilers from day old to 5 weeks of age.

  10. Economic and welfare benefits of environmental enrichment for broiler breeders.

    Science.gov (United States)

    Leone, E H; Estévez, I

    2008-01-01

    Designs to enrich the environment are crucial in the effort to fully address the biological needs of domestic animals. Although enrichment programs have been shown to improve health and welfare, little is known of their potential for application to commercial broiler breeder environments. We investigated the potential benefits of cover panels for broiler breeder reproductive performance in a commercial setting. This demonstration trial occurred on 5 commercial broiler breeder farms, each with a control and panel treatment room containing approximately 7,000 females and 800 males. Reproductive performance was measured from 25 to 60 wk by the number of eggs laid per female per week as well as weekly fertility and hatchability rates. The location of marked males was recorded weekly to quantify male movement. Access to cover panels improved egg production by 2.1% and maintained better hatchability and fertility throughout the breeding cycle (significant interactions of age and panel treatment) leading to an additional 4.5 chicks/female. Male home ranges, based on minimum convex polygons, were larger in the enriched (259 +/- 24.4 m(2)) vs. control flocks (184 +/- 23.1 m(2)). Providing enrichment in the form of cover panels improved reproductive performance, most likely by increasing males' mating opportunities and reducing female stress. We found a clear economic benefit to providing enrichment, an estimated $3 million if all breeder houses within the participating company were outfitted with the panels. These results demonstrate that environmental enrichment is not only beneficial for broiler breeder welfare, but can also be economically advantageous, resulting in a win-win situation for poultry welfare and production.

  11. Response of finishing broiler chickens fed three energy/protein ...

    African Journals Online (AJOL)

    A feeding experiment was conducted to investigate the response of finishing broiler chicken to diets containing three metabolizable energy (ME)/crude protein (CP) combinations ( 3203.76 ME vs 19.90 %CP, 2884.15 ME vs 18.10%CP and 2566.42 ME vs 18.10 %CP) at fixed ME:CP ratio of 160:1. A total of 126 four weeks ...

  12. Economics of production of broiler chickens fed maggot meal as ...

    African Journals Online (AJOL)

    The economics of production of broiler chickens considered for 0-35 days, 35-56 days, and 0-56 days was compared for fishmeal (FM) and maggot meal (MM) diets. The maggot meal diet had a replacement of the fish meal at 75%> on protein basis. Replacing FM at 75% with MM resulted in reduced cost of feed as well as ...

  13. Modelling broilers' abdominal fat in response to dietary treatments.

    Science.gov (United States)

    Salarpour, A; Rahmatnejad, E; Khotanlou, H

    2015-04-01

    Neural networks are capable of modelling any complex function and can be used in poultry production. Dietary crude fibre (CF) and exogenous enzymes (exEn) extensively affected abdominal fat (AF) of broilers. Current methods to study AF and its correlation with dietary CF levels and exEn supplements are costly, laborious and time-consuming. The purpose of this study was to develop an artificial neural network-genetic algorithm (ANN-GA) to model data on the response of broiler chickens (AF) to CF and exEn from 0 to 42 days of age. A data set containing eight treatments was divided to the train, validation, and test data set of the ANN models. The information about feeding eight diets at two periods [starter (0-21 days of age) and grower (22-42 days of age)] were used to estimate AF of broilers by ANN-GA. A multilayer feed-forward neural network with different structures was developed using matlab software, and optimal values for the ANN weights were obtained using the genetic algorithm (GA). Crude fibre, and exEn were used as input variables and AF of broilers was output variable. The best model of ANN-GA was determined based on the train root mean square error (RMSE). The best selected ANN-GA showed desirable results, RMSE, 0.1286% and R(2) coefficient, 0.876 for test data. Journal of Animal Physiology and Animal Nutrition © 2014 Blackwell Verlag GmbH.

  14. Carcass yield, meat quality and internal organs of broiler chickens ...

    African Journals Online (AJOL)

    An experiment was conducted to determine the dietary effect of different levels of black pepper (BP) on carcass yield, meat quality, meat pH and internal organs of broiler chickens. Five dietary treatments were formulated such that diets 1, 2, 3, 4 and 5 contained 0, 0.25, 0.50, 0.75 and 1.00 % BP respectively. The inclusion ...

  15. Reducing Abdominal Fat Deposition in Broiler Through Feeding Management

    OpenAIRE

    Cecep Hidayat

    2015-01-01

    Abdominal fat in broiler carcass is considered as a waste and its existence reduces the carcass quality. Abdominal fat deposition is affected by several factors such as genetic, nutrition, feed, sex, age and environment. Reducing abdominal fat deposition can be carried out by regulating the nutrient intake to ensure that no excessive nutrient was consumed. Nutrition effects to reduce abdominal fat deposition are associated with nutrient concentration of ration and quantity of daily feed intak...

  16. The study of riboflavin requirement in broiler chickens.

    Science.gov (United States)

    Olkowski, A A; Classen, H L

    1998-01-01

    Riboflavin status indices in tissues (brain, liver, heart) and blood plasma, and performance parameters were studied in male and female broiler chickens in response to a wide range of dietary supplementation of riboflavin in order to establish the requirement for riboflavin in fast growing modern broilers. The birds fed riboflavin supplemented diets were increasing their body weight at a higher rate than those fed the unsupplemented diet, but this was apparent only during the first stage of growth (days 1 to 21). Supplementation of 2 mg riboflavin per kg was sufficient to support the maximum growth rate. Feed consumption was not affected by different levels of dietary supplementation of riboflavin. The supplementation of riboflavin in the diet increased (p FAD, followed by FMN and riboflavin. Overall, the dietary riboflavin supplementation had highly significant (p effects on tissue FAD, FMN, and riboflavin status, but the effect of supplementation was clearly pronounced only at days 7 and 14, and thereafter the status of FAD, FMN, and riboflavin in the tissues did not differ between unsupplemented and supplemented birds. Neither FAD, FMN, and riboflavin nor GSSG-RED activity correlate with the level of supplementation. Saturation levels of riboflavin in the blood plasma and tissues, corresponded with dietary riboflavin levels of supplementation at 1 to 2 mg per kg. Based on the performance and biochemical data, the dietary requirement of riboflavin for fast growing broilers should be set at a level of 5 mg/kg. The currently recommended allowance of 3.6 mg riboflavin per kg of ration is not sufficient for modern breeds of broiler chickens.

  17. The Effect of Degree of Photostimulation on Male Broiler Breeder ...

    African Journals Online (AJOL)

    Nicky

    Abstract. The effect of photostimulation of male broiler breeders (n = 144) to different photoperiods (8-h control and 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.5, 13, 14 and 18 h) applied at 20 weeks of age, on age at first semen production, testis weights, as predicted by comb area, and semen characteristics at the reported age at first.

  18. Field evaluation of broiler gait score using different sampling methods

    Directory of Open Access Journals (Sweden)

    AFS Cordeiro

    2009-09-01

    Full Text Available Brazil is today the world's largest broiler meat exporter; however, in order to keep this position, it must comply with welfare regulations while maintaining low production costs. Locomotion problems restrain bird movements, limiting their access to drinking and feeding equipment, and therefore their survival and productivity. The objective of this study was to evaluate locomotion deficiency in broiler chickens reared under stressful temperature conditions using three different sampling methods of birds from three different ages. The experiment consisted in determining the gait score of 28, 35, 42 and 49-day-old broilers using three different known gait scoring methods: M1, birds were randomly selected, enclosed in a circle, and then stimulated to walk out of the circle; M2, ten birds were randomly selected and gait scored; and M3, birds were randomly selected, enclosed in a circle, and then observed while walking away from the circle without stimulus to walking. Environmental temperature, relative humidity, and light intensity inside the poultry houses were recorded. No evidence of interaction between scoring method and age was found however, both method and age influenced gait score. Gait score was found to be lower at 28 days of age. The evaluation using the ten randomly selected birds within the house was the method that presented the less reliable results. Gait score results when birds were stimulated to walk were lower than when they were not simulated, independently of age. The gait scores obtained with the three tested methods and ages were higher than those considered acceptable. The highest frequency of normal gait score (0 represented 50% of the flock. These results may be related to heat stress during rearing. Average gait score incresead with average ambient temperature, relative humidity, and light intensity. The evaluation of gait score to detect locomotion problems of broilers under rearing conditions seems subjective and

  19. Vitamin C attenuates copper-induced oxidative damage in broiler ...

    African Journals Online (AJOL)

    This study was conducted to evaluate the protective effects of vitamin C on copper-induced oxidative damage in the erythrocyte and liver of broiler chickens. Three week old birds were fed a basal diet (n = 40), or basal diet supplemented with 250 mg CuSO4/kg diet (n = 40) for 56 days. On the 57th day, the birds of the two ...

  20. influence of dietary lipid sources on sensory characteristics of broiler ...

    African Journals Online (AJOL)

    Influence of dietary lipid sources on sensory characteristics of broiler meat. A. Hugo. 2. , S.P. Els. 1. , C. Bothma. 2. , F.H. de Witt. 1#. , H.J. van der Merwe. 1 and M.D. Fair. 1. 1 Department of Animal, Wildlife and Grassland Science. 2 Department of Microbial, Biochemical and Food Biotechnology. P.O. Box 339, University of ...

  1. Growth response of broiler chickens to finisher diets containing high ...

    African Journals Online (AJOL)

    The study investigated the effect of including high amounts of wheat bran (WB) in finisher diets on growth performance and economy of gain of broiler chickens. The WB contained g kg-1 of dry matter, 894.3; crude protein, 193.5; ether extract, 42.1; crude fibre, 97.1; ash, 49.5; neutral detergent fibre, 503.8; acid detergent ...

  2. Roasted sesame hulls improve broiler performance without affecting carcass characteristics

    Directory of Open Access Journals (Sweden)

    Kamel Z. Mahmoud

    2015-09-01

    Full Text Available An experiment was conducted to evaluate the effect of using graded levels of roasted sesame hulls (RSH on growth performance and meat quality characteristics in broiler chickens. A total of 360 day-old Lohmann chicks were randomly allocated into 24 floor pens and raised over 42 days. One of four dietary treatments was assigned to each group of six pens in a completely randomized fashion. The chicks in the control group were fed a corn-soybean based diet (RSH-0, while the chicks in treatments two, three, and four were fed graded levels of RSH at 4% (RSH-4, 8% (RSH-8, and 12% (RSH-12, respectively. Diets were formulated to meet broiler chicks’ requirements according to the National Research Council for both starter and finisher rations. The results showed that RSH inclusion increased (P<0.05 feed intake and final body weight without adversely affecting the feed conversion ratio. Broiler chicks fed RSH-12 had heavier (P<0.05 breast and leg cuts compared to the control-fed group with no change to their chemical composition. Water holding capacity (WHC, cooking loss (CL, and shear force (SF reported similar results in all dietary groups. The chemical composition of both thigh and breast cuts was not affected by the RSH. After one day of thawing, colour coordinates of breast cuts behaved similarly in all dietary groups. The results of this study suggest that the addition of RSH to broiler diets up to 12% improves their growth performance; nevertheless, carcass characteristics and meat quality showed no alterations compared to the control-fed group.

  3. Involvement of Mycoplasma synoviae in Respiratory Distress Cases of Broilers

    Directory of Open Access Journals (Sweden)

    S. Ehtisham-ul-Haque*, S. U. Rahman, M. Siddique and A. S. Qureshi1

    2011-04-01

    Full Text Available Mycoplasma synoviae (MS is an important pathogen of poultry worldwide, causing respiratory tract infection and infectious synovitis in chickens and turkeys. The study was designed to detect M. synoviae through serology, culture isolation and polymerase chain reaction (PCR assay to document the involvement of MS infection in respiratory distress cases of broiler birds. The validated PCR assay amplifying the conserved gene region of 16SrRNA gene was applied for the detection of M. synoviae from culture as well as in clinical samples. The results indicated that 04 out of total 17 commercial broiler flocks showing respiratory distress signs were found positive with M. synoviae infection indicating 76.57% sero-positivity as, determined with rapid serum agglutination (RSA test. Out of 85 clinical specimens (collected from sero-positive birds; M. synoviae culture isolation was successfully attained in 36 (42.35% samples. Whereas, PCR test has detected 84 (98.82% positive cases. The prevalence of MS in broiler birds was observed maximum as measured through PCR. It is suggested that the true prevalence of MS may best be reflected by combining RSA and PCR test findings.

  4. Listeria Species in Broiler Poultry Farms: Potential Public Health Hazards.

    Science.gov (United States)

    Dahshan, Hesham; Merwad, Abdallah Mohamed Amin; Mohamed, Taisir Saber

    2016-09-28

    Broiler meat production worldwide has been plagued by lethal food-poisoning bacteria diseases, including listeriosis. A fatality rate of 15.6% was recorded in human beings in the EU in 2015. During 2013, a total of 200 poultry farm samples, including litter, chicken breast, farm feed, and drinking water, were collected to generate baseline data for the characterization of the genus Listeria in broiler poultry farms. Listeria spp. were detected in a total of 95 (47.5%) poultry farm samples. The isolates of Listeria spp. included L. innocua (28.5%), L. ivanovii (12.5%), L. welshimeri (4.5%), and L. monocytogenes and L. seeligeri (1% each). Listeria spp. contamination rates were higher in farm feed (70%), followed by litter (52.5%), chicken breasts (42.2%), and drinking water (10%). Almost all Listeria spp. isolates were resistant to more than three classes of antibiotics (multidrug resistant). Besides this, we observed a significant resistance level to penicillin and fluoroquinolone drugs. However, lower resistance levels were recorded for broad-spectrum cephalosporins. The inlA, inlC, and inlJ virulence genes were detected in almost all of the L. monocytogenes isolates. Thus, food safety management approaches and interventions at all stages of the broiler rearing cycle were needed to control cross-contamination and the zoonotic potential of listeriosis.

  5. Uranium distribution in broiler organs and possibilities for protection

    Energy Technology Data Exchange (ETDEWEB)

    Mitrovic, Branislava; Vitorovic, Gordana; Lazarevic-Macanovic, Mirjana; Andric, Velibor [University in Belgrade, Department of Radiology and Radiation Hygiene, Faculty of Veterinary Medicine, Belgrade (Serbia); Jovanovic, Milijan; Dakovic, Aleksandra [University in Belgrade, Department of Veterinary Pathology, Faculty of Veterinary Medicine, Belgrade (Serbia); Stojanovic, Mirjana [University in Belgrade, Institute for Technology of Nuclear and Other Mineral Row Materials, Belgrade (Serbia); Vitorovic, Dusko [University in Belgrade, Faculty of Agriculture, Zemun (Serbia)

    2014-03-15

    The aim of the present study was to investigate the distribution of uranium (uranyl nitrate hexahydrate, UN) in muscle and organs (kidney, liver, and brain) of broilers, after a 7-day contamination with UN and administration of two different adsorbents (organobentonite and organozeolite). The birds were contaminated during 7 days with 25 mg/UN per day. Adsorbents were given via gastric tube, immediately after contamination with UN. In group 1 that did not receive any adsorbents, histopathological changes in the contaminated broilers were observed in small intestine, liver, and kidney in the form of necrosis of intestinal villi, oedema and cytoplasmic vacuolation of hepatocytes, and dystrophic changes in the kidney tubules epithelium. Organobentonite administered via gastric tube (group 2) reduced uranium distribution by 66 % in kidney, 81 % in liver, and 34 % in brain. In group 3, administration of organozeolite reduced uranium distribution by 67 % in kidney, 68 % in liver, and 49 % in brain. In groups 2 and 3, where the broilers received adsorbents immediately after the UN contamination, no histopathological lesions were observed. (orig.)

  6. Degradation of veterinary antibiotics and hormone during broiler manure composting.

    Science.gov (United States)

    Ho, Yu Bin; Zakaria, Mohamad Pauzi; Latif, Puziah Abdul; Saari, Nazamid

    2013-03-01

    The fate of nine veterinary antibiotics and one hormone in broiler manure during 40 days of composting was investigated. Results showed that composting can significantly reduce the concentration of veterinary antibiotics and hormone in broiler manure, making application of the post-compost manure safer for soil application. More than 99% of the nine antibiotics and one hormone involved in this study were removed from the manure during 40 days of composting. The target antibiotics and hormone showed short half-life in broiler manure composting, ranging from 1.3 to 3.8 days. The relationship between the physico-chemical properties of soil, manure and manure compost and its veterinary antibiotic and hormone concentration was statistically evaluated by Pearson correlation matrix. The concentration of veterinary antibiotics and hormone in manure compost was suggested to be affected by physico-chemical properties such as pH, temperature, total organic carbon (TOC), total nitrogen (TN), total phosphorus (TP) and metal contents. Copyright © 2013 Elsevier Ltd. All rights reserved.

  7. Effect of Origanum chemotypes on broiler intestinal bacteria.

    Science.gov (United States)

    Betancourt, Liliana; Rodriguez, Fernando; Phandanouvong, Vienvilay; Ariza-Nieto, Claudia; Hume, Michael; Nisbet, David; Afanador-Téllez, German; Van Kley, Alexandra Martynova; Nalian, Armen

    2014-10-01

    Essential oils have been proposed as alternatives to antibiotic use in food animal production. This study evaluated 3 chemotypes of the Origanum genus, containing varying amounts of secondary metabolites carvacrol, thymol, and sabinene, in the broiler chicken diet. Aerial parts of Origanum vulgare L. (OL), O. vulgare L. ssp. hirtum (OH), and O. majorana (OM) were collected from a greenhouse located in the high altitude Sabana de Bogotá (Savanna of Bogotá) and O. vulgare L. ssp. hirtum (OG) produced and ground in Greece. Oregano essential oils (OEO) from these plants were obtained by steam distillation and analyzed by gas chromatography coupled to a mass spectrometer. Six treatments were evaluated: 200 mg/kg of OEO from OH, OL, and OM, 50 mg/kg of OEO from OG, 500 mg/kg of chlortetracycline, and without additives. Broiler chicks were maintained at 2,600 m above sea level, placed in brooder cages under a completely randomized design. Template DNA was isolated from duodenal, jejunal, ileal, and cecal contents in each group and bacterial 16S rDNA patterns were analyzed by denaturing gradient gel electrophoresis. Dendrograms of denaturing gradient gel electrophoresis band patterns revealed 2 main clusters, OEO-treated chicks and nontreated control chicks, in each intestinal segment. Band patterns from different gut compartments revealed major bacterial population shifts in the foregut (duodenum, jejunum, and ileum) compared with the hindgut (cecum and colon) at all ages evaluated (P Origanum genus in broilers. ©2014 Poultry Science Association Inc.

  8. Consumer-driven profit maximization in broiler production and processing

    Directory of Open Access Journals (Sweden)

    Ecio de Farias Costa

    2004-01-01

    Full Text Available Increased emphasis on consumer markets in broiler profit-maximizing modeling generates results that differ from those by traditional profit-maximization models. This approach reveals that the adoption of step pricing and consideration of marketing options (examples of responsiveness to consumers affect the optimal feed formulation levels and types of broiler production to generate maximum profitability. The adoption of step pricing attests that higher profits can be obtained for targeted weights only if premium prices for broiler products are contracted.Um aumento na ênfase dada ao mercado de consumidores de carne de frango e modelos de maximização de lucros na produção de frangos de corte geram resultados que diferem daqueles obtidos em modelos tradicionais de maximização de lucros. Esta metodologia revela que a adoção de step-pricing e considerando opções de mercado (exemplos de resposta às preferências de consumidores afetam os níveis ótimos de formulação de rações e os tipos de produção de frangos de corte que geram uma lucratividade máxima. A adoção de step-pricing atesta que maiores lucros podem ser obtidos para pesos-alvo somente se preços-prêmio para produtos processados de carne de frango forem contratados.

  9. Piperine as a phytogenic additive in broiler diets

    Directory of Open Access Journals (Sweden)

    Verônica da Silva Cardoso

    2012-04-01

    Full Text Available The objective of this work was to determine the effect of piperine as a phytogenic additive in chicken broiler diet. Seven‑day‑old male chicks were randomly allocated in four experimental treatments (n = 24, with four replicates (n = 6. The piperine was added to diets at concentrations of 0, 60, 120, and 180 mg kg‑1 for 35 consecutive days. The following were evaluated: biochemical, hematological and histopathological parameters; performance and carcass yield. Histomorphometric analyses were also carried out. The addition of 120 and 180 mg kg‑1 of piperine did not alter broiler body weight and feed conversion, whereas 60 mg kg‑1 of piperine interfered positively in both parameters from 36 to 42 days of age and significantly increased the absorption surface of the duodenum and the ileum. No macroscopic alteration in organ size and color was observed in the broilers fed diets with the evaluated concentrations of piperine. The supplementation of 120 and 180 mg kg‑1 of piperine is toxic to liver tissue and reduces the absorption surface of the jejune. The diet supplemented with 60 mg kg‑1 of piperine is safe.

  10. MARKET CHOICES FOR BROILER CHICKEN MEAT IN THE OPINION

    Directory of Open Access Journals (Sweden)

    Anna Augustyńska-Prejsnar

    2014-09-01

    Full Text Available Recently there has, been growing a increase in consumption of poultry meat in Poland. The most important material for slaughter poultry are broilers. Among factors that influence rising demand for poultry meat are: low price, availability of raw materials and promotional campaigns of safe nutrition. Its nutritional and sensory value makes it a choice product. University students are a specific group that has aroused the interest of nutritionists. The students’ lifestyle is characterised by high active social life and intense responsibilities, which ought to be augmented with a carefully chosen diet. The youth do not only have significant impact on the family purchasing decisions but display a strong purchasing power due to financial resources at their disposal and would in the future become mature and rational consumers. The article lists factors that determine purchasing needs, reasons for choice of markets and the consumption frequency of broiler meat. The feeling of lack of other products coupled with current sales promotions were, in the opinion of the students surveyed, often responsible for the decision to purchase of broiler chicken meat. Low price and the ease of preparation were also key reasons for the choice of this meat product. Responding students noted that skinless chicken breast fillet was most commonly consumed.

  11. Plant extracts used as growth promoters in broilers

    Directory of Open Access Journals (Sweden)

    MSR Barreto

    2008-06-01

    Full Text Available Two experiments were carried out to assess the efficacy of plant extracts as alternatives for antimicrobial growth promoters in broiler diets. The performance experiment included 1,200 male broilers raised from 1 to 42 days of age. The metabolism experiment used 96 male broilers in the grower phase housed in metabolic cages for total excreta collection. At the end of the metabolism experiment, 24 birds were sacrificed to assess organ morphometrics. In both experiments, the following treatments were applied: control diet (CD; CD + 10 ppm avilamycin; CD + 1000 ppm oregano extract; CD + 1000 ppm clove extract; CD + 1000 ppm cinnamon extract; and CD + 1000 ppm red pepper extract. The microencapsulated extracts contained 20% of essential oil. No significant differences (P>0.05 in the studied performance parameters were observed among treatments. The dietary supplementation of the extracts did not influence (P>0.05 nitrogen-corrected apparent metabolizable energy values. In general, organ morphometrics was not affected by the experimental treatments, but birds fed the control diet had higher liver relative weight (P<0.05 as compared to those fed the diet containing red pepper extract, which presented the lowest liver relative weight. These results showed that there was no effect of the tested plant extracts on live performance or in organ morphometrics.

  12. Microbiological, Physicochemical, and Histological Analyses of Broiler Carcasses with Cachexia

    Directory of Open Access Journals (Sweden)

    LC Nery

    Full Text Available ABSTRACT Broiler carcasses presenting cachexia, as determined by the federal inspection agency, were submitted to microbiological, physicochemical, and histological analyses. Over a 2-month period, 278 carcasses from straight-run flocks of 43- to 48-d-old Cobb broilers from two different farms were condemned due to cachexia and subjected to gross examination in the final inspection sector. Out of the 278 carcasses, 131 did not present any gross signs of infection, and were submitted to microbiological analyses (n=83, physicochemical analyses (n=28, and viscera and muscle samples of 20 carcasses were evaluated by histology. The microbiological results of cachectic carcasses complied with the current legislation on the consumption of fresh poultry meat. Lower lipid and higher protein, moisture, and volatile matter contents, and higher pH (p<0.05 were determined in the cachectic than in the control carcasses from a same flock, but no ash content differences. All carcasses were negative for hydrogen sulfide. The histological analysis showed that65% of the cachectic carcasses did not have any muscle injury, 20% showed mild hyalinization and 15% moderate proliferation of fibrous connective tissue. The findings of this study indicate the importance of further technical and scientific studies on the utilization of cachectic broiler carcasses for the manufacture of edible products, rather than whole carcasses rendering, thereby preventing the resulting economic losses.

  13. Effects of Bacillus subtilis KD1 on broiler intestinal flora.

    Science.gov (United States)

    Wu, B Q; Zhang, T; Guo, L Q; Lin, J F

    2011-11-01

    A novel Bacillus subtilis KD1 strain was isolated and identified from healthy broilers, and its phylogenetic classification was subsequently analyzed. To evaluate its probiotic availability, its growth characteristics and tolerance for the gut environment were evaluated in vitro. The results suggest that B. subtilis KD1 is superior in secreting neutral protease and is highly tolerant of gastric acid and bile salt. In the logarithmic growth phase, the neutral protease reached a maximum of 1,369.3 U/mL. When all live bacteria had become spores in the broth, B. subtilis KD1 was freeze dried and fed to broilers at 10(9), 5 × 10(9), and 10(10) bacilli/kg of feed. The animal trial results suggest that the addition of the new strain significantly improved intestinal flora by increasing lactobacilli and reducing Escherichia coli (P < 0.05) as compared with the control; hence, B. subtilis KD1 is a promising probiotic organism in broilers.

  14. Response of broiler chickens to different dietary crude protein and feeding regimens

    Directory of Open Access Journals (Sweden)

    JO Oyedeji

    2005-09-01

    Full Text Available Five isocaloric (3200kcal/kg diets were used in an experiment designed to investigate the effects of dietary crude protein (CP and feeding regimens on broiler performance. Day-old broilers were randomly distributed into four groups using a completely randomized design. Each group was replicated three times with ten broiler chicks per replicate. The experiment lasted for eight weeks. Broilers in group 1 received 23% CP from 0 to 3 weeks, 20% CP from 3 to 6 weeks and 18% CP from 6 to 8 weeks, while broilers in group 2 received 23% CP between 0 and 6 weeks and 18% CP between 6 and 8 weeks. Besides, broilers in group 3 were fed 23% CP from 0 to 4 weeks and 16% CP from 4 to 8 weeks, whereas group 4 was given 18% CP from 0 to weeks. Water was supplied ad libitum for broilers in the different dietary groups. A metabolic trial was carried out on the third week of the experiment using a total collection method. Proximate analyses of diets and faecal samples were performed according to the methods outlined by the Association Of the Official Analytical Chemists. Results at market age showed that broiler performance with respect to feed intake, weight gain, feed to gain ratio and water intake were not significantly influenced by CP regimens (p>0.05. Furthermore, CP regimens did not significantly influence broilers liveability (p>0.05. Protein retention, fat utilization and available fiber were not significantly influenced among treatments (p> 0.05. Economic data showed that cost to benefit ratio of producing broilers was comparable among broilers for all CP regimens used in this trial (p>0.05. It was concluded that a single diet of 18% CP and 3200kcal/kg metabolizable energy would be most suitable and convenient for farmers who are engaged in on-farm feed production for broilers as compared with the standard feeding regimens of broiler starter and broiler finisher diets.

  15. Inventory Data on Commercial Broiler Chicken Production System using Life Cycle Assessment Approach: A Case Study

    Science.gov (United States)

    Suffian, S. A.; Sidek, A. A.; Yusof, H. M.; Al-Hazza, M. H. F.

    2018-01-01

    An inventory analysis of the life cycle of broiler chicken production from cradle-to-gate perspective was carried out with the aim to identify possible input and output parameters involved in the system. To do so, broiler chicken production in Myra Chicken Farm and Services was investigated in detail. Result shows the inventory data on feed consumption, transportation, physical performance parameter and other utilities that affect the product which is broilers. Broilers production in fact shows escalation year by year because of high demand from consumer. A cradle-to-gate assessment was conducted based on ISO 14040/14044 guidelines. Inventory data was gathered from farmers and available literature. Improving all the input and output system will increase the level of productivity and the cost of the production. Thus, at the end of the research, it will able to make industry player to understand and take into consideration the solutions in order to promote a green broiler chicken production.

  16. The phylogenetics of Leucocytozoon caulleryi infecting broiler chickens in endemic areas in Indonesia.

    Science.gov (United States)

    Suprihati, Endang; Yuniarti, Wiwik Misaco

    2017-11-01

    The objective of this research was to determine the species and strains of Leucocytozoon caulleryi and study the phylogenetics of L. caulleryi of broiler chickens in endemic areas in Indonesia. Blood samples were collected from broiler chickens originated from endemic area in Indonesia, i.e., Pasuruan, Lamongan, Blitar, Lumajang, Boyolali, Purwokerto, and Banjarmasin in 2017. Collected blood was used for microscopic examination, sequencing using BLAST method to identify the nucleotide structure of cytochrome b (cyt b) gene that determines the species, and the phylogenetics analysis of L. caulleryi that infected broiler chickens in endemic areas in Indonesia, using Mega 5 software. The results showed that Plasmodium sp. and L. caulleryi were infected broiler chickens in endemic areas in Indonesia. L. caulleryi in one area had very close phylogenetic relations with those in other areas. The genetic distance between L. caulleryi taxa from various endemic areas is very close (broiler chickens in various endemic areas in Indonesia.

  17. Contamination of poultry environment with campylobacter Spp. and significance for colonisation of broilers

    DEFF Research Database (Denmark)

    Lydekaitiene, Viktorija Legaudaite; Malakauskas, Mindangas; Kudirkiene, Egle

    2016-01-01

    medium and selective enrichment into Exeter broth. Campylobacter isolates were identified to the species level by multiplex polymerase chain reaction. The genetic diversity of Campylobacter jejuni strains isolated from broilers and the environment was examined by PCR-based restriction fragment length...... to identify the sources of Campylobacter in poultry farm environment and their significance for broiler colonisation. For this purpose, Campylobacter spp. were isolated from broilers and their environment (litter, water of puddle, concentric zones, tap water) by both direct inoculation on mCCDA selective...... genotypes, which had not been transmitted to other broiler flocks reared in the same building. Studies have shown that Campylobacter can survive in poultry environment. They can be transferred from the environment into broiler houses by shoes, cloths and wildlife. Therefore, strict bio-security and hygiene...

  18. Evaluation of the Danish footpad lesion surveillance in conventional and organic broilers

    DEFF Research Database (Denmark)

    Lund, Vibe Pedersen; Nielsen, Liza Rosenbaum; Oliveira, A.R.S.

    2017-01-01

    Danish legislation prescribes surveillance of footpad dermatitis (FPD) at slaughter as an indicator of on-farm broiler welfare. The 3-point scale being used was originally developed in Sweden to score feet from conventional broilers, but the extent and causes of misclassifications have not been...... investigated, neither in conventional nor organic broilers. Hence, we investigated the performance of the official Danish FPD scoring system in conventional and organic broilers by assessing agreement between official scores from the slaughterhouse and consecutive scoring of the same feet by a reference method....... We also investigated the impact of performing an incision of the footpad during scoring. In total, 902 conventional and 897 organic broiler feet (∼100 per flock from 18 flocks) were collected at a large Danish slaughterhouse for the official FPD surveillance system. Laboratory scoring, according...

  19. Prevalence of thermotolerant Campylobacter in broiler flocks and broiler carcasses in Italy

    Directory of Open Access Journals (Sweden)

    Giacomo Migliorati

    2010-12-01

    Full Text Available In accordance with European Union regulations, from 5 February until 15 December 2008, sampling and analysis activities were conducted in Italy to assess the extent of contamination caused by thermotolerant Campylobacter in broiler chickens farmed nationwide. The survey involved 48 poultry slaughterhouses distributed across eleven regions of Italy, where the caeca and carcasses of 393 slaughter batches were sampled. A total of 284 batches (72.3% gave positive results for Campylobacter spp. as follows: 52.1% were contaminated by C. jejuni, 55.6% by C. coli and 1.1% by C. lari. C. jejuni and C. coli were isolated together in 37 batches (13% of positive results. Campylobacter spp. was isolated only from the caeca in 251 slaughter batches (63.9% including caecal isolates of C. jejuni (48.2%, C. coli (50.6%, and C. lari (1.2%. Carcasses from 182 batches (46.3% were contaminated by C. jejuni in 40.7% of cases, C. coli in 57.7% and the absence of C. lari from all batches examined. The contamination level observed in the carcasses ranged between 10 and 1.6 × 107 cfu/g.

  20. Prevalence and characterization of Salmonella species in entire steps of a single integrated broiler supply chain in Korea.

    Science.gov (United States)

    Choi, Soo-Won; Ha, Jong-Su; Kim, Byoung-Yoon; Lee, Dong-Hun; Park, Jae-Keun; Youn, Ha-Na; Hong, Young-Ho; Lee, Sang-Bae; Lee, Joong-Bok; Park, Seung-Yong; Choi, In-Soo; Song, Chang-Seon

    2014-05-01

    The purpose of this study was to investigate the distribution of Salmonella species in an integrated broiler supply chain in Korea. A total of 1,214 samples from various steps of an integrated broiler production company including broiler breeder farms, broiler farms, broiler trucks, slaughterhouse, and retail chicken meats were collected and investigated. Salmonella was detected in 195 of the samples. The highest prevalence of Salmonella was observed in broiler transporting trucks (71.43%), followed by the slaughterhouse (63.89%) and broiler farms (16.05%). Salmonella Hadar was the most frequently isolated serotype (83.08%). All Salmonella Hadar isolates investigated in this study with pulsed-field gel electrophoresis showed the same XbaI pulsed-field gel electrophoresis pulsotype.

  1. Dilution and separation of solids and liquids of broiler litter for supply of digester

    Energy Technology Data Exchange (ETDEWEB)

    Aires, Airon Magno; Lucas Junior, Jorge de; Xavier, Cristiane de Almeida Neves; Miranda, Adelia Pereira; Fukayama, Ellen Hatsumi [Universidade Estadual Paulista (FCAV/UNESP), Jaboticabal, SP (Brazil). Fac. de Ciencias Agrarias e Veterinarias

    2008-07-01

    The solid separation techniques indicate that it can promote a support in anaerobic biological process. This trial was realized in FCAV-UNESP, Jaboticabal, Brazil, in Rural Engineering Department. For this trial two tests were developed, using broiler litter water diluted and separated in a 3mm mesh screen: the treatments consisted in (1kg) broiler litter diluted in (2kg) of water, (1kg) broiler litter and (4kg) water, (1kg) broiler litter diluted in (6kg) of water, (1kg) broiler litter and (8kg) of water, (1kg) broiler litter diluted in (10kg) of water, (1kg) broiler litter and (12kg) water and (1kg) broiler litter diluted in (14kg) of water. Total solids (TS), solid and liquid fraction and biogas production were estimated. There were no significant differences related to solid fraction retained in screen. As the broiler litter became more diluted, a raise in the liquid fractions quantities was observed, ranging from 20.9 to 89.4% of the total diluted waste. Biogas production potentials ranged from 0.2364 to 0.4666 m{sup 3} of biogas by 100kg of liquid fraction. Organic carbon numbers ranged from 0.21 to 0.47kg by 100kg of liquid fraction and 5.36 to 6.18kg by 100kg of solid fraction. The highest values obtained for this element in liquid fractions dilutions were 2:1 and 6:1 with 0.46 and 0.47kg by 100kg respectively. The separation of liquid and solid fraction of broiler litter was viable in the smaller dilutions, because those guarantee a reduction in the anaerobic digester implementation costs and dilution water economy. Solid fraction has potential for composting, mainly in a great scale production. (author)

  2. Probiotic Enhanced Intestinal Immunity in Broilers against Subclinical Necrotic Enteritis

    Directory of Open Access Journals (Sweden)

    Hesong Wang

    2017-11-01

    Full Text Available Along with banning of antibiotics, necrotic enteritis (NE, especially subclinical NE (SNE whereby no clinical signs are present in chicks, has become one of the most threatening problems in poultry industry. Therefore, increasing attention has been focused on research and application of effective probiotic strains, as an alternative to antibiotics, to prevent SNE in broilers. In the present study, we evaluated the effects of Lactobacillus johnsonii BS15 on the prevention of SNE in broilers. Specifically, assessment determined the growth performance and indexes related to intestinal mucosal immunity in the ileum and cecal tonsil of broilers. A total of 300 1-day-old Cobb 500 chicks were randomly distributed into the following 5 groups: control group (fed with basal diet + de Man, Rogosa, and Sharpe liquid medium [normal diet], SNE group (normal diet, BS15 group (basal diet + 1 × 106 colony-forming units BS15/g as fed [BS15 diet], treatment group (normal diet [days 1–28] + BS15 diet [days 29–42], and prevention group (BS15 diet [days 1–28] + normal diet [days 29–42] throughout a 42-day experimental period. SNE infection was treated for all chicks in the SNE, BS15, treatment, and prevention groups. The present results demonstrated that BS15 supplementation of feeds in BS15 and prevention groups exerted a positive effect on preventing negative influences on growth performance; these negative influences included low body weight gain and increased feed conversion ratio caused by SNE. Although no changes were detected in all determined indexes in cecal tonsils, BS15-treated broilers were free from SNE-caused damage in villi in the ileum. BS15 inhibited SNE-caused decrease in immunoglobulins in the ileum. In the lamina propria of ileum, T cell subsets of lymphocytes influenced by SNE were also controlled by BS15. BS15 affected antioxidant abilities of the ileum and controlled SNE-induced mitochondrion-mediated apoptosis by

  3. Probiotic Enhanced Intestinal Immunity in Broilers against Subclinical Necrotic Enteritis.

    Science.gov (United States)

    Wang, Hesong; Ni, Xueqin; Qing, Xiaodan; Liu, Lei; Lai, Jing; Khalique, Abdul; Li, Guangyao; Pan, Kangcheng; Jing, Bo; Zeng, Dong

    2017-01-01

    Along with banning of antibiotics, necrotic enteritis (NE), especially subclinical NE (SNE) whereby no clinical signs are present in chicks, has become one of the most threatening problems in poultry industry. Therefore, increasing attention has been focused on research and application of effective probiotic strains, as an alternative to antibiotics, to prevent SNE in broilers. In the present study, we evaluated the effects of Lactobacillus johnsonii BS15 on the prevention of SNE in broilers. Specifically, assessment determined the growth performance and indexes related to intestinal mucosal immunity in the ileum and cecal tonsil of broilers. A total of 300 1-day-old Cobb 500 chicks were randomly distributed into the following 5 groups: control group (fed with basal diet + de Man, Rogosa, and Sharpe liquid medium [normal diet]), SNE group (normal diet), BS15 group (basal diet + 1 × 106 colony-forming units BS15/g as fed [BS15 diet]), treatment group (normal diet [days 1-28] + BS15 diet [days 29-42]), and prevention group (BS15 diet [days 1-28] + normal diet [days 29-42]) throughout a 42-day experimental period. SNE infection was treated for all chicks in the SNE, BS15, treatment, and prevention groups. The present results demonstrated that BS15 supplementation of feeds in BS15 and prevention groups exerted a positive effect on preventing negative influences on growth performance; these negative influences included low body weight gain and increased feed conversion ratio caused by SNE. Although no changes were detected in all determined indexes in cecal tonsils, BS15-treated broilers were free from SNE-caused damage in villi in the ileum. BS15 inhibited SNE-caused decrease in immunoglobulins in the ileum. In the lamina propria of ileum, T cell subsets of lymphocytes influenced by SNE were also controlled by BS15. BS15 affected antioxidant abilities of the ileum and controlled SNE-induced mitochondrion-mediated apoptosis by positively changing

  4. Selection for early response to photostimulation in broiler breeders.

    Science.gov (United States)

    Tyler, N C; Gous, R M

    2011-08-01

    1. To determine if selection for early response to photostimulation could be successful, 150 male broiler breeders were photostimulated at 8 weeks of age. The first 20 to produce a semen sample and have a reddened comb with an area > 10 cm2 were selected as responders (R) and 20 birds that did not show these signs of sexual development were chosen as non-responders (NR). Once sexually mature, 8 birds from each group that consistently produced a semen sample were mated with both egg-type hybrids and broiler breeder females to observe the response to 8-week photostimulation in the as-hatched offspring. 2. The AFE of the F1 females with NR or R paternity and egg-type hybrid layer maternity (F1L) were similar, but AFE was advanced in birds from R relative to NR paternity when they had broiler breeder maternity (F1B). 3. Date following a normal distribution of AFE were extracted from the overall data set. This group included offspring from both NR and R paternity, but AFE in F1L and F1B females with R paternity was advanced compared to those with NR paternity. 4. Mean testis weights, or age at most rapid testis growth predicted using parameters from Tyler and Gous (2009), of F1 males were not significantly different in birds with NR or R paternity. A strong correlation was found between predicted age at most rapid growth and AFE of full sibs and so it is likely that an advance in AFE in female offspring would also result in an advance in age of testis development of males. 5. There was no significant difference in 21-d body weight of F1B females of NR or R paternity, but the 21-d body weights of F1L females were higher from R than from NR sires, suggesting that although fertility and meat-type traits are often negatively correlated, there was no adverse effect of selection for responsiveness to early photostimulation and broiler growth rates to 21 d. 6. These findings showed that the response to early stimulation is heritable, and should be useful to the broiler breeder

  5. Serological monitoring of ornitobacteriosis in broilers in South Banat district

    Directory of Open Access Journals (Sweden)

    Gavrilović Pavle

    2014-01-01

    Full Text Available Ornithobacterium rhinotracheale is a relatively recently discovered bacterium and its role in the pathology of avian respiratory infections has not yet been clarified. Since there was no data relating to the prevalence of this infection in Serbia at the time of carrying out our investigations, we decided to explore the prevalence of the infection in broilers and its influence on clinical manifestations at the selected apizootiological area with developed poultry industry. A total of 430 blood samples from 26 flocks of broilers of different ages, from five municipalities were taken for examination. The serum samples were tested by ELISA for the presence of specific antibodies to the agent. Epizootiological investigation was carried out based on the results obtained with serological testing and epizootiological data, collected from the farms. The data were analyzed statistically to identify association between the infection and manifestation of clinical symptoms by Fisher’s exact test. Seropositive chickens were detected in 16 out of 26 examined broiler flocks at the age of 3 to 56 days. The percentage of seropositive samples per flock was 5-30%. The titer values of specific antibodies ranged from 946 to 6886. Serological response to O. rhinotracheale was evidenced in five flocks which had clinical symptoms in the form of respiratory tract disorders or stunting. However, specific antibodies against the agent were discovered in 11 flocks which did not show clinical symptoms. Statistical analysis revealed no association between the presence of infection and the appearance of clinical symptoms (p = 0.1213. The results are in agreement with those of other authors who investigated the prevalence of this infection and its manifestations in other countries. The present investigation determined indirectly, serologically a presence of O. rhinotracheale in the majority of examined broiler flocks (61,54% and a small average number of individual

  6. Influence of Covering Reused Broiler Litter with Plastic Canvas on Litter Characteristics and Bacteriology and the Subsequent Immunity and Microbiology of Broilers

    OpenAIRE

    Mesa, D; Lourenço, M; Souza, A; Bueno, A; Pereira, A; Sfeir, M; Santin, E

    2016-01-01

    ABSTRACT In broiler production, the litter is reused for consecutives flocks, and it is treated during down time between flocks to reduce its microbial load. Although covering the litter with a plastic canvas is a common litter treatment in the field, there is little scientific information available on its efficacy. The aim of this study was to evaluate the effects of covering broiler litter with a plastic canvas for eight days on litter microbiological, physical, and chemical parameters, and...

  7. Extended-spectrum-β-lactamase- and AmpC-β-lactamase-producing Escherichia coli in Dutch broilers and broiler farmers.

    Science.gov (United States)

    Dierikx, Cindy; van der Goot, Jeanet; Fabri, Teun; van Essen-Zandbergen, Alieda; Smith, Hilde; Mevius, Dik

    2013-01-01

    The aim of this study was to establish the prevalence of extended-spectrum β-lactamase (ESBL)- and AmpC β-lactamase-producing Escherichia coli at Dutch broiler farms and in farmers and to compare ESBL/AmpC-producing isolates from farmers and their animals. Twenty-five to 41 cloacal swabs collected from broilers at each of 26 farms and 18 faecal samples from 18 broiler farmers were analysed for determination of the presence of ESBL/AmpC-producing E. coli. ESBL/AmpC genes were characterized by microarray, PCR and sequencing. Plasmids were characterized by transformation and PCR-based replicon typing. Subtyping of plasmids was done by plasmid multilocus sequence typing or restriction fragment length polymorphism. E. coli genotypes were determined by multilocus sequence typing. Birds from all farms were positive for ESBL/AmpC-producing E. coli, and on 22/26 farms the within-farm prevalence was ≥ 80%. Six of 18 farmers carried isolates containing ESBL/AmpC genes bla(CTX-M-1), bla(CMY-2) and/or bla(SHV-12), which were also present in the samples from their animals. In five of these isolates, the genes were located on identical plasmid families [IncI1 (n = 3), IncK (n = 1) or IncN (n = 1)], and in isolates from two farmers the genes were carried on identical plasmid subtypes (IncI1 ST12 and IncN ST1, where ST stands for sequence type) as in the isolates from their animals. This study shows a high prevalence of birds carrying ESBL/AmpC-producing E. coli at Dutch broiler farms and a high prevalence of ESBL/AmpC-producing E. coli in farmers. This is undesirable due to the risk this poses to human health. Future research should focus on identification of the source of these isolates in the broiler production chain to make interventions resulting in reduction of these isolates possible.

  8. Growth performance, carcass yield and intestinal microflora populations of broilers fed diets containing thepax and yogurt

    Directory of Open Access Journals (Sweden)

    A Boostani

    2013-03-01

    Full Text Available The present study aimed at evaluating the effect of the probiotic thepax and yogurt (as probiotic on the growth response and intestinal microflora results of broiler chickens. Two hundred forty day-old Ross 308 broilers were equally distributed into 12 floor pens and reared for 42 day. The treatments consisted of yogurt (10, 5 and 2.5% during starter, grower and finisher periods in the drinking water, respectively and thepax (1000, 500, 250 g/ton-1 in the starter, grower and finisher diets, respectively, resulting three experimental diets and a control group. Each dietary treatment was fed ad-libitum to four replicate group of 20 birds at the beginning of rearing period. Birds and feed were weighed on days 21 and 42. The results of experiment indicate that diets containing feed additives improved broiler performance. The body weight gain and feed conversion ratio improved significantly more (p < 0.05 with the thepax treatment compared with the control broilers during the total rearing period. The highest (p < 0.05 carcass and thigh values were recorded for broilers fed the diet supplemented with thepax and yogurt, respectively. The lowest abdominal fat pad value was obtained in broilers fed the diet supplemented with thepax. On d 21, thepax and yogurt significantly reduced (p < 0.05 cecal Escherichia coli and Clostridium perfringens populations compared with the control group. In conclusion, thepax and yogurt improved broilers growth response and conferred intestinal health benefits to chickens by improving their microbial ecology.

  9. Extraction and physicochemical characterization of broiler (Gallus gallus domesticus) skin gelatin compared to commercial bovine gelatin.

    Science.gov (United States)

    Aykin-Dinçer, E; Koç, A; Erbas, M

    2017-09-01

    Gelatin was extracted from broiler (Gallus gallus domesticus) skins and analyzed to compare its physicochemical properties with those of commercial bovine gelatin. The average yield of broiler skin gelatin was 6.5% on a wet weight basis. Broiler skin gelatin had more α1-and α2-chains than β-chain and contained high molecular weight (γ-chain) polymers. Glycine was the dominant amino acid in broiler skin gelatin (20.26%), followed by proline (Pro) (15.12%) then hydroxyproline (Hyp) (11.36%). Compared to commercial bovine gelatin, broiler skin gelatin had less total imino acids (Pro and Hyp) but a higher (33.65 vs. 31.38°C) melting temperature (P broiler and commercial bovine gelatins appeared to be associated with differences in their amino acid composition and molecular weight distribution. The sensory evaluation results revealed that broiler skin gelatin could be a potential alternative to commercial bovine gelatin, useful in various food products. © 2017 Poultry Science Association Inc.

  10. Alum and Rainfall Effects on Ionophores in Runoff from Surface-Applied Broiler Litter.

    Science.gov (United States)

    Doydora, Sarah A; Franklin, Dorcas; Sun, Peizhe; Cabrera, Miguel; Thompson, Aaron; Love-Myers, Kimberly; Rema, John; Calvert, Vaughn; Pavlostathis, Spyros G; Huang, Ching-Hua

    2015-09-01

    Polyether ionophores, monensin, and salinomycin are commonly used as antiparasitic drugs in broiler production and may be present in broiler litter (bird excreta plus bedding material). Long-term application of broiler litter to pastures may lead to ionophore contamination of surface waters. Because polyether ionophores break down at low pH, we hypothesized that decreasing litter pH with an acidic material such as aluminum sulfate (alum) would reduce ionophore losses to runoff (i.e., monensin and salinomycin concentrations, loads, or amounts lost). We quantified ionophore loss to runoff in response to (i) addition of alum to broiler litter and (ii) length of time between litter application and the first simulated rainfall event. The factorial experiment consisted of unamended (∼pH 9) vs. alum-amended litters (∼pH 6), each combined with simulated rainfall at 0, 2, or 4 wk after litter application. Runoff from alum-amended broiler litter had 33% lower monensin concentration ( broiler litter when averaged across all events of rainfall. Ionophore losses to runoff were also less when rainfall was delayed for 2 or 4 wk after litter application relative to applying rainfall immediately after litter application. While the weather is difficult to predict, our data suggest that ionophore losses in runoff can be reduced if broiler litter applications are made to maximize dry time after application. Copyright © by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc.

  11. A role for flies (Diptera) in the transmission of Campylobacter to broilers?

    Science.gov (United States)

    Royden, A; Wedley, A; Merga, J Y; Rushton, S; Hald, B; Humphrey, T; Williams, N J

    2016-11-01

    Campylobacter is the leading cause of bacterial diarrhoeal disease worldwide, with raw and undercooked poultry meat and products the primary source of infection. Colonization of broiler chicken flocks with Campylobacter has proved difficult to prevent, even with high levels of biosecurity. Dipteran flies are proven carriers of Campylobacter and their ingress into broiler houses may contribute to its transmission to broiler chickens. However, this has not been investigated in the UK. Campylobacter was cultured from 2195 flies collected from four UK broiler farms. Of flies cultured individually, 0·22% [2/902, 95% confidence interval (CI) 0-0·53] were positive by culture for Campylobacter spp. Additionally, 1293 flies were grouped by family and cultured in 127 batches: 4/127 (3·15%, 95% CI 0·11-6·19) from three broiler farms were positive for Campylobacter. Multilocus sequence typing of isolates demonstrated that the flies were carrying broiler-associated sequence types, responsible for human enteric illness. Malaise traps were used to survey the dipteran species diversity on study farms and also revealed up to 612 flies present around broiler-house ventilation inlets over a 2-h period. Therefore, despite the low prevalence of Campylobacter cultured from flies, the risk of transmission by this route may be high, particularly during summer when fly populations are greatest.

  12. Influence of growth rate on occurrences of pale muscle in broilers.

    Science.gov (United States)

    Samuel, Dora D; Billard, Lynne; Pringle, Dean; Wicker, Louise

    2012-01-15

    Pale broiler breast meat is a defect in commercial production operations. The incidence of pale broiler breast meat was examined in two commercial processing plants which had average growth rates of 59 g day(-1) and 46 g day(-1) and final average weights of 3.36 kg and 1.93 kg. Color measurements of dorsal and ventral surfaces and pH were completed to evaluate the impact of selection for growth on meat water-holding capacity. L* greater than 60 were observed in 57% of broilers selected for greater yield and 26% of slower growing broilers. Average L* between 10 growers was significantly different (P = 0.001). Pearson's correlation coefficients for pH and L* were - 0.51 and - 0.27 for the faster growing broilers and slower growing broilers, respectively. The Pearson correlation coefficients between water-holding capacity and L* and pH was - 0.35 and 0.42, respectively. There was a higher correlation between production factors (age, weight and grower) and a* and b* than L* for ventral surface measurements. Breasts from broilers selected for faster growth tend to have lighter color. Weak correlation with water-holding capacity suggests that quality remains the same and light color is probably related to other factors. Copyright © 2011 Society of Chemical Industry.

  13. Mean surface temperature prediction models for broiler chickens—a study of sensible heat flow

    Science.gov (United States)

    Nascimento, Sheila Tavares; da Silva, Iran José Oliveira; Maia, Alex Sandro Campos; de Castro, Ariane Cristina; Vieira, Frederico Marcio Corrêa

    2014-03-01

    Body surface temperature can be used to evaluate thermal equilibrium in animals. The bodies of broiler chickens, like those of all birds, are partially covered by feathers. Thus, the heat flow at the boundary layer between broilers' bodies and the environment differs between feathered and featherless areas. The aim of this investigation was to use linear regression models incorporating environmental parameters and age to predict the surface temperatures of the feathered and featherless areas of broiler chickens. The trial was conducted in a climate chamber, and 576 broilers were distributed in two groups. In the first trial, 288 broilers were monitored after exposure to comfortable or stressful conditions during a 6-week rearing period. Another 288 broilers were measured under the same conditions to test the predictive power of the models. Sensible heat flow was calculated, and for the regions covered by feathers, sensible heat flow was predicted based on the estimated surface temperatures. The surface temperatures of the feathered and featherless areas can be predicted based on air, black globe or operative temperatures. According to the sensible heat flow model, the broilers' ability to maintain thermal equilibrium by convection and radiation decreased during the rearing period. Sensible heat flow estimated based on estimated surface temperatures can be used to predict animal responses to comfortable and stressful conditions.

  14. Effects of dietary vitamin E and C supplementation on heart failure in fast growing commercial broiler chickens.

    Science.gov (United States)

    Nain, S; Wojnarowicz, C; Laarveld, B; Olkowski, A A

    2008-11-01

    1. It has recently been shown that oxidative stress is involved in the pathogenesis of congestive heart failure (CHF) in broiler chickens. Vitamins E and C, common antioxidants, have been advocated for the prevention of heart failure in humans. The present study examines the effects of supplementation of these vitamins on incidence of CHF and prevention of oxidative stress in the myocardium. 2. Commercial male broilers were randomly allocated to three experimental groups and, respectively, offered commercial broiler diet (control), commercial diets fortified with vitamin E (960 IU/kg) or vitamin C (400 mg/kg). The broilers were monitored daily for overt signs of heart failure and clinical data including ECG and blood gas analysis were collected periodically. Lipid peroxidation was measured in cardiac tissues from apparently normal broilers and broilers developing CHF in each group using thiobarbituric acid reactive substances (TBARS) assay. 3. Overall, the incidence of CHF in broilers given diets fortified with vitamin E or vitamin C was not significantly different as compared to the control group. The incidence of overt signs of hypoxaemia was lower in the vitamin C group than in the control group. Lipid peroxidation was highest in broilers that developed CHF as compared to apparently normal broilers fed either vitamin E or C fortified diets. Neither vitamin E nor vitamin C was effective in preventing oxidative damage in broilers that developed CHF. 4. In conclusion, the present study confirmed that oxidative stress is involved in the pathogenesis of heart failure in broilers, but dietary supplementation of antioxidant vitamins did not prevent oxidative damage in broilers that developed CHF. Beneficial effects of vitamin C supplementation were evidenced by lower incidence of hypoxaemia, and the tendency to reduce the susceptibility of broilers to heart failure. However, vitamin E did not have any impact on clinical status or the incidence of CHF.

  15. Risk factors for Campylobacter infection in Danish broiler chickens

    DEFF Research Database (Denmark)

    Chowdhury, S; Sandberg, M; Themudo, Goncalo Espregueira Cruz

    2012-01-01

    Data from the Quality Assurance System in Danish Broiler Production (KIK system) were analyzed to identify within farm biosecurity- and management-related risk factors for Campylobacter infection in Danish broiler flocks. In the study, data from 2,835 flocks originating from 187 farms in the time...... logistic regression model with a random effect of farm was performed. The analysis revealed that flocks had a higher risk of acquiring positive infection status during summer time: odds ratio = 12.59 (95% CI: 6.79–23.36) and when more than one person entered the broiler house: odds ratio = 2.03 (95% CI: 1...

  16. Associations among gait score, production data, abattoir registrations, and postmortem tibia measurements in broiler chickens

    DEFF Research Database (Denmark)

    Kittelsen, K.E.; David, B.; Moe, R.O.

    2017-01-01

    Lameness and impaired walking ability in rapidly growing meat-type broiler chickens are major welfare issues that cause economic losses. This study analyzed the prevalence of impaired walking and its associations with production data, abattoir registrations, and postmortem tibia measurements...... culled to harvest tibias. Abattoir registrations on flock level were collected after slaughter. A total of 24.6% of the broilers had moderate to severe gait impairment. The broilers were sampled in 2 stages, first slaughterhouse/region, and then owner/flock. The final models showed that impaired gait...

  17. Differences in qualitative aspects of broiler meat demand in Spain. Part 1: Home Consumption

    OpenAIRE

    Colom, Ale; Gosalvez, M.; Clop-Gallart, M. Merce; Averos, X.; Juarez, L.; Gosalvez, L.

    2008-01-01

    To know the Spanish homes reasons of purchasing broiler meat a survey of 1,000 families, by means of a 13 question interview, was carried out during 2007. After processing the information it was concluded that Spanish families purchase food an average of 2.34 times/week, 95% of which do not exceed 100 € and, with the exception of more than 400 € purchases, in more than 90% of which broiler meat accounts for more than 14% of the spent budget. Broiler meat is bought near home, in butcher’s shop...

  18. EFFECT OF DIETARY SUPPLEMENTATION OF MULTI-STRAIN PROBIOTIC ON BROILER GROWTH PERFORMANCE

    OpenAIRE

    M. I. Anjum, A. G. Khan, A. Azim and M. Afzal1

    2005-01-01

    The effects of a multi-strain probiotic (protexin) on broiler growth performance, carcass parameters and economic efficiency were studied. For this purpose, 270 day-old broiler chicks were randomly divided into three experimental groups A, B and C, with 90 chicks in each group having three replicates. Group A was fed commercial broiler diet without supplementation of protexin (control) and groups B and C were fed diets containing protexin 100 and 110g/t in starter and 50 and 55 g/t in finish...

  19. Effect of citric acid and acetic acid on the performance of broilers

    OpenAIRE

    Islam, M. Z.; Khandaker, Z.H; Chowdhury, S D; Islam, K.M.S

    2008-01-01

    An experiment was conducted with commercial broilers to investigate the effects of feeding citric acid, acetic acid and their combination on their performance and to determine the economic competence of using citric acid and acetic acid in broiler rations. A total number of 108 one day old straight run broiler chicks were distributed to four dietary treatments i.e. 0 % citric or acetic acid (A) , 0.5% citric acid (B), 0.5% acetic acid (C) and their combinations 0.5% citric acid and 0.5% aceti...

  20. The influence of feeding crimped kernel maize silage on broiler production, nutrient digestibility and meat quality

    DEFF Research Database (Denmark)

    Ranjitkar, Samir; Karlsson, Anders H.; Petersen, Mikael A.

    2016-01-01

    . Broiler mortality decreased significantly when CKMS was added to the diet. 5. The consumption of drinking water was significantly lower in all maize based diets as compared to WBF and was lowest in broilers fed CKMS-30. 6. An improved litter quality in terms of dry matter content and a lower frequency....... Compared with MBF, the DM intakes of broilers receiving CKMS-15 and CKMS-30 respectively were numerically 7.5 and 6.2 % higher, and FCR were 6 and 12 % poorer (significant for CKMS 30%), although there were no significant differences in AME content between the three diets. At 37 d, the body weight of birds...

  1. Effects of dietary selenomethionine supplementation on growth performance, meat quality and antioxidant property in yellow broilers.

    Science.gov (United States)

    Jiang, Zongyong; Lin, Yingcai; Zhou, Guilian; Luo, Lihuan; Jiang, Shouqun; Chen, Fang

    2009-10-28

    This study was conducted to investigate the effects of dietary selenomethionine (Se-Met) supplementation on growth performance, meat quality and antioxidant property in male broilers. A total of 800 43-day-old Lingnan yellow male broilers were randomly allotted to 5 dietary treatments with four replicates of 40 birds for a period of 3 weeks ad libitum. Final BW and weight gain of birds significantly increased by Se-Met supplementation at the 0.225 mg/kg level (P antioxidant capability (T-AOC), glutathione peroxidase (GPX), total superoxide dismutase (T-SOD), catalase (CAT) activities, glutathione (GSH) concentration (p antioxidative capacity in broilers compared with SS.

  2. Modeling and bio-economic analysis of broilers' performance in Benin

    DEFF Research Database (Denmark)

    Houndonougbo, Mankpondji Frederic; Chwalibog, André; Chrysostome, C.A.A.M.

    2009-01-01

    The objective of this paper was to model bio-economic variables in broilers feeding. During 7 weeks, 120 broilers Red Bro were fed with diets containing soybean meals from solvent (Ss) or expeller (Se) processing. At grower phase (d 22 to d 49) the diets were switched for half of broilers in each...... the feed conversion ratio (FCR), the feed cost (FC) and the economic feed efficiency (EFE). The model II showed that at starter phase the interaction between diet and age had a significant effect on DFI, DWG, FCR, F and EFE. At grower phase, there was no interaction effect. The age affected significantly...

  3. Bioavailability of different methionine sources for growing broilers

    Directory of Open Access Journals (Sweden)

    Cleiton Pagliari Sangali

    2014-03-01

    Full Text Available The objective of this trial was to evaluate the bioavailability of DL-2-hydroxy-4-(methyl butanoic acid (DL-HMBA and a polyherbal ingredient (PHI in relation to DL-methionine (DLM on broilers. Nine hundred male broiler chickens of the Cobb 500 strain were fed from 22 to 42 days of age either a basal diet without industrial methionine supplementation or the basal diet supplemented with DL-HMBA at one of three levels (0.143, 0.286 and 0.429% or DLM at one of three levels (0.093, 0.186 and 0.279%, each of which is 65% of the respective DL-HMBA level by weight or PHI at one of the same three levels used for DLM (0.093, 0.186 and 0.279%. The weight gain, feed conversion ratio and relative weights of breast and abdominal fat were improved over that of basal diet-fed broilers by the addition of DL-HMBA and DLM to the diet. A simultaneous exponential regression analysis revealed that the relative bioavailability values for DL-HMBA and PHI were 52% and 5% of that of DLM, respectively, for weight gain, and 57% and 4%, respectively, for feed conversion ratio. Concerning breast meat yield, a simultaneous linear regression analysis (slope ratio showed that the relative bioavailability for DL-HMBA was 65% of that of DLM. Considering all studied parameters together, the relative bioavailability values for DL-HMBA and PHI are 58% and 4.5% of that of DLM on a product basis.

  4. Ileal microbiota composition of broilers fed various commercial diet compositions.

    Science.gov (United States)

    van der Hoeven-Hangoor, E; van der Vossen, J M B M; Schuren, F H J; Verstegen, M W A; de Oliveira, J E; Montijn, R C; Hendriks, W H

    2013-10-01

    Microbiota plays a role in the release and absorption of nutrients from feed components, thereby affecting digesta composition and moisture content of the excreta. The objective of the current study was to determine the effects of 5 different diets varying in ingredients (medium-chain fatty acids, nonstarch polysaccharides, and starch) on the microbiota composition of ileal digesta of broiler chickens and excreta DM content. Each treatment was repeated 6 times in cages each containing 18 Ross 308 broilers, with growth performance measured from 0 to 34 d of age and excreta DM and ileal microbiota composition analyzed at 34 d of age. Microbiota composition was evaluated using a novel ribosomal RNA microarray technology containing 370 different probes covering various genera, groups of microbial species, and individual species of the chicken gut microbiota, of which 321 had a signal above the background threshold. Replacing part of the animal fat and soybean oil in the wheat-based diet with medium-chain fatty acids (MCFA; 0.3% C10 and 2.7% C12) improved feed efficiency compared with the other dietary treatments. This coincided with a suppression of gram-positive bacteria belonging to the phylum of the Firmicutes, including Lactobacillus species, and species belonging to the family of the Enterococcaceae and Micrococcaceae, whereas the gram-negative bacteria belonging to the family of the Enterobacteriaceae were promoted. None of the other diets used in the present study notably changed the ileal digesta bacteria composition. Excreta DM content was not affected by dietary treatment. The variation between individual birds per dietary treatment was more pronounced than variation caused by feed composition, with the exception of the digesta microbiota of the birds fed the MCFA diet. It is concluded that a diet with MCFA significantly changes the ileal microbiota composition, whereas the effect of the other diets on the composition of the microbiota and excreta DM content

  5. Apparent metabolizable energy of glycerin for broiler chickens.

    Science.gov (United States)

    Dozier, W A; Kerr, B J; Corzo, A; Kidd, M T; Weber, T E; Bregendahl, K; Bregendal, K

    2008-02-01

    Three energy balance experiments were conducted to determine AMEn of glycerin using broiler chickens of diverse ages. In experiment 1, two dietary treatments were fed from 4 to 11 d of age. Dietary treatments consisted of a control diet (no added glycerin) and a diet containing 6% glycerin (94% control diet + 6% glycerin). Four dietary treatments were provided in experiment 2 (from 17 to 24 d of age) and 3 (from 38 to 45 d of age). Diets in experiment 2 and 3 were 1) control diet (no added glycerin); 2) 3% added glycerin (97% control diet + 3% glycerin); 3) 6% added glycerin (94% control diet + 6% glycerin); and 4) 9% added glycerin (91% control diet + 9% glycerin). Diets in experiment 1 and 2 were identical, but the diet used in experiment 3 had reduced nutrient levels based on bird age. In experiments 2 and 3, broilers were fed 91, 94, 97, and 100% of ad libitum intake so that differences in AMEn consumption were only due to glycerin. A single source of glycerin was used in all experiments. Feed intake, BW, energy intake, energy excretion, nitrogen intake, nitrogen excretion, AMEn, and AMEn intake were determined in all experiments. In experiment 1, AMEn determination utilized the difference approach by subtracting AMEn of the control diet from AMEn of the test diet. In experiments 2 and 3, AMEn intake was regressed against feed intake with the slope estimating AMEn of glycerin. Regression equations were Y = 3,331x -72.59 (P glycerin was determined as 3,621, 3,331, and 3,349 kcal/kg in experiments 1, 2, and 3, respectively. The average AMEn of glycerin across the 3 experiments was 3,434 kcal/kg, which is similar to its gross energy content. These results indicate that AMEn of glycerin is utilized efficiently by broiler chickens.

  6. Analysis of Reproductive Traits of Giant Broiler Rabbit Lines

    Directory of Open Access Journals (Sweden)

    Peter Šmehýl

    2017-05-01

    Full Text Available The aim of this study was to evaluate chosen reproductive traits of synthetic broiler rabbit line. The numbers of 7 reproductive traits were analysed. The synthetic broiler rabbit lines produced from local broiler population and Belgian Giant White sire rabbit were the object of analysis in our study. Number of total born young, lactation at 21st day, number of weaned (35, mortality and relative mortality, litter weight at birth and litter weight at weaning were analysed in experiment. The experiment was carry out in intensive farm conditions with controlled microclimate in wire cages, fed with balanced granulated mixture. Reproduction was provided by artificial insemination, heating and ovulation were stimulated by exogenous hormones. Kindlings were spontaneous and regulated lactation was applied. Following obtained values of analysed lines are presented in results. The average of total number of born in lines F1, B1, B2, B2.1 were 7,9 ; 9,08; 10,25 and 7,75 respectively. Weaning was carry out at the age of 35 days, and the average numbers of number of weaned young were: 6, 35; 7, 75; 8, 85; 5, 25. The mortality up to weaning reach average numbers 1, 55; 1, 08; 1, 5; 2, 5 pieces and 18, 42; 15, 13; 13,97; 33,72 %. The weights of litter at born reach values 240 -- 955 g. The weight of litter at weaning in each line was 4876, 25; 5940, 75; 7165; 4471, 88 g. Lactation at 21th day reaches average numbers 3257, 25; 6837, 5; 4511, 0; 3707, 5 g.

  7. Equilibrium Condition during Locomotion and Gait in Broiler Chickens

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    MCF Alves

    Full Text Available ABSTRACT The experiment was carried out with the objective of evaluating a methodology to estimate the angulation and equilibrium condition, relating them to gait score and the main diseases of the locomotion system in males and females of commercial broiler strains. A completely randomized experimental design in a factorial arrangement (2x2 was applied, consisting of two sexes and two genetic strains, with five replicates of 53 chickens each. The following characteristics related to broiler locomotion were studied: gait score (GS; incidence of Valgus (VAL and Varus (VAR deformities and of pododermatitis (POD; body angle relative the ground (ANG; equilibrium condition (EC; body weight (BW and breast weight (BrW; and incidence of femoral degeneration (FD, tibial dyschondroplasia (TD and spondylolisthesis (SPO. GS, and VAL and VAR were assessed inside a broiler house. Birds were then photographed to estimate ANG and EC. Birds were sacrificed at 42 days of age and analyzed for FD, TD, and SPO. Breast percentage was not influenced by sex or strain. Males showed better ANG than females, regardless of strain. Overall, the strains studied showed prostrated EC. The correlation between GS and the evaluated traits was low. There was a moderate to high association between EC and ANG both in males and females. GS showed low correlation with locomotion problems, and therefore, it is a poor indicator of skeletal diseases. On the other hand, the moderate to high correlations of ANG and EC with locomotion problems make them better indicators of bone diseases than gait score, which is possibly more related to EC and body posture than to bone pathologies.

  8. Use of probiotics to replace antibiotics for broilers

    Directory of Open Access Journals (Sweden)

    Ricardo Vianna Nunes

    2012-10-01

    Full Text Available This study was carried out to evaluate the effect of supplementation of probiotics (Lactobacillus acidophilus, Enterococcus faecium and Bifidubacterium bifidum and antibiotics (flavomicina and staquinol on diets for broilers from 1 to 42 days of age, reared in clean (new litter and challenged (reused litter environments. A total of 768 one-day-old male broilers of the Cobb 500 strain were distributed in a completely randomized design in a 2 × 4 factorial arrangement (2 litter types × 4 diets, totaling eight treatments with eight replications and 16 poultry per experimental unit. The results of performance and carcass characteristics were submitted to analysis of variance using the Studen Newman Keuls test at 0.05 probability. In the period of 1-21 days of age, the supplementation with probiotics for poultry raised in the new litter reduced feed intake, whereas in those raised in reused litter, the diet free of growth promoter showed a lower consumption. Poultry from 1 to 42 days raised in new litter had lower feed intake when supplemented with probiotics. Other results of performance and carcass yield were not affected. For the poultry raised in reused litter, the use of probiotics resulted in lower thigh yield and higher liver yield. The use of different growth promoters in feed for broilers does not influence the performance of poultry raised in new or reused litter. The use of probiotic promotes lower feed intake without compromising the performance, regardless of the type of litter used, demonstrating the feasibility of using this product as substitute for antibiotics.

  9. Survey of skin pigmentation of yellow-skinned broiler chickens.

    Science.gov (United States)

    Sirri, F; Petracci, M; Bianchi, M; Meluzzi, A

    2010-07-01

    The appearance of whole carcass and skin-on cut-up products is an important attribute that deeply affects the consumer's choice. Skin pigmentation is affected mainly by genetics, concentration and dietary source of pigments, health status of the birds, and scalding-plucking conditions during slaughtering, although other factors might play an important role. Retailers request batches of broiler chicken carcasses characterized by uniform skin pigmentation to be sold as whole carcass or parts. The aim of this study was to evaluate the variability of skin color of yellow-skinned broilers reared under intensive conditions. For the study, a total of 2,300 medium size broiler chickens (2,300 to 2,500 g of live weight) from 23 flocks (100 birds/flock; n = 12 flocks of males and n = 11 flocks of females; n = 12 flocks of Ross 508 and n = 11 flocks of Ross 308) were randomly selected in a single slaughterhouse. The color measurements were carried out on both breast and thigh pterylae as well as on shank skin adopting the L* a* b* system and using a Minolta colorimeter CR 300. The overall range in measured yellowness (b*) was fairly large for all skin color measurement positions. For breast, a mean value of 22.77 (SD = 5.12) was observed, with values ranging from 7.45 to 39.12. Average values of thigh and shank were 20.23 (SD = 5.02; range 1.99 to 37.82) and 53.99 (SD = 8.13; range 24.22 to 78.65), respectively. A higher skin yellowness was observed in females in all body parts as well as in Ross 308. Yellowness values of breast and thigh were significantly correlated (r = 0.85; P < 0.01), suggesting that the color evaluation may be carried out only on one measurement position of the skin.

  10. Effect of ozonation on particulate matter in broiler houses.

    Science.gov (United States)

    Li, Q; Wang, L; Oviedo-Rondón, E; Parnell, C B

    2010-10-01

    The effects of ozonation on particulate matter were studied on a commercial broiler farm. The farm consisted of 4 identical tunnel-ventilated houses (12.8×152.4 m): 2 houses were treated with O3 (maximum concentration 0.1 ppm) and the other 2 served as control units. The particle size distributions of total suspended particulate (TSP) samples from both control and treated houses were found to have very similar profiles with no statistical difference. The TSP concentrations were significantly higher in treated houses as compared with those in control houses, and the mean of the differences was 5.50 mg/m3. In both treated and control houses, there were substantial vertical TSP concentration gradients and the concentrations decreased with height. At broiler chicken height (0.28 m), TSP concentrations were 13±3 mg/m3 in control houses and 17±2 mg/m3 in treated houses. At human breathing height (1.55 m), TSP concentrations were 8±4 mg/m3 in control houses and 7±2 mg/m3 in treated houses. Particle phase NH4+ concentrations were higher in treated houses (ranging from 0.59 to 42.01 mg/m3 with mean=17.49 mg/m3) than in control houses (ranging from 0.34 to 13.55 mg/m3 with mean=4.42 mg/m3). The TSP samples from locations in the vicinity of the farm showed higher concentrations downwind than that upwind, but there were no significant differences observed among different ambient locations for TSP NH4+ concentrations. The results from this study did not show that direct application of ozonation technique has beneficial effects for particulate matter control in broiler houses.

  11. Disposal and utilization of broiler slaughter waste by composting

    Directory of Open Access Journals (Sweden)

    N Bharathy

    2012-12-01

    Full Text Available Aim: To know the feasibility of hygienic and environmentally safe method of disposal of broiler slaughter house waste with coir pith and caged layer manure. Materials and Methods: Compost bins (4 feet x 4 feet x 4 feet were established with concrete blocks with air holes to facilitate aerobic composting. The broiler slaughter waste and coconut coir pith waste were collected from the local market, free of cost. The caged layer manure available from poultry farms were utilized as manure substrate. Physical properties and chemical composition of ingredients were analyzed and a suitable compost recipe was formulated (USDA-NRCS, 2000. Two control bins were maintained simultaneously, using caged layer manure with coir pith waste and water in a ratio of 0.8:3:1.2 (T and another one bin using caged layer manure alone(T . 2 3 Results: At the end of composting, moisture content, weight and the Volume of the compost were reduced significantly (P<0.01, pH, EC, TDS, total organic carbon and total nitrogen content were also significantly (P<0.01 reduced at the finishing of composting. Calcium, phosphorous and potassium content was progressively increased during composting period. The finished compost contains undetectable level of salmonella. Cowpea and sorghum seeds showed positive germination percentage when this finished compost was used. It indicated that all of the finished compost was free from phytotoxin substances. Conclusion: The results indicated that, composting of slaughter waste combined with coir pith waste may be a hygienic and environmentally safe method of disposal of broiler slaughter house waste [Vet. World 2012; 5(6.000: 359-361

  12. Different Levels of Digestible Methionine on Performance of Broiler Starter

    Directory of Open Access Journals (Sweden)

    WL Bryden

    2010-01-01

    Full Text Available Dietary protein and amino acid supply is the most expensive component of poultry diets. Therefore several efforts made by the industry to minimize the cost of the protein portion of the diet. Accordingly, there has been a recent move to use digestible amino acid values in the formulation of poultry diets. The efficiency of protein utilization depends to a large extent on the amino acid composition of the diet. The study was conducted to determine the digestible methionine requirement of broilers during the starter periods. One hundred and seventy five (175 chicks were allocated to 5 treatments with five replicates of seven chicks per replicate in a completely randomized design. Chicks were fed experimental diets from one day old to 21 days of age. Dietary treatments included 5 titrated levels each of digestible methionine (3.0, 4.5, 6.0, 7.5, and 9.0 g/kg diet added to a basal diet. The allowance of digestible methionine, rather than digestible sulphur amino acids was used in formulating the diets. Supplemental synthetic DL-Methionine which were considered to be 100% digestible were added to diets to obtain the concentration of the digestible amino acid. Each week until the conclusion of the trial, birds were individually weighed, feed intake per pen was measured, and feed conversion ratio (FCR was computed. This study suggested that the digestible methionine requirement for broiler starter is 4.7 g/kg for optimal body weight gain and 4.6 g/kg for optimal feed conversion ratio. (Animal Production 12(1: 6-11 (2010Key Words: amino acid, broiler, digestible, methionine, starter

  13. Dietary oregano essential oil alleviates experimentally induced coccidiosis in broilers.

    Science.gov (United States)

    Mohiti-Asli, M; Ghanaatparast-Rashti, M

    2015-06-15

    An experiment was conducted to determine the effects of oregano essential oil on growth performance and coccidiosis prevention in mild challenged broilers. A total of 250 1-d-old chicks were used in a completely randomized design with 5 treatments and 5 replicates with 10 birds in each replication. Experimental treatments included: (1) negative control (NC; unchallenged), (2) positive control (PC; challenged with sporulated oocysts of Eimeria), (3) PC fed 200 ppm Diclazuril in diet, (4) PC fed 300 ppm oregano oil in diet, and (5) PC fed 500 ppm oregano oil in diet. At 22 d of age, all the experimental groups except for NC were challenged with 50-fold dose of Livacox T as a trivalent live attenuated coccidiosis vaccine. On d 28, two birds were slaughtered and intestinal coccidiosis lesions were scored 0-4. Moreover, dropping was scored in the scale of 0-3, and oocysts per gram feces (OPG) were measured. Oregano oil at either supplementation rate increased body weight gain (P=0.039) and improved feed conversion ratio (P=0.010) from d 22 to 28, when compared with PC group. Using 500 ppm oregano oil in challenged broilers diet increased European efficiency factor than PC group (P=0.020). Moreover, challenged broilers fed 500 ppm oregano oil or Diclazuril in diets displayed lower coccidiosis lesions scores in upper (P=0.003) and middle (P=0.018) regions of intestine than PC group, with the effect being similar to unchallenged birds. In general, challenged birds fed 500 ppm oregano oil or Diclazuril in diets had lower OPG (P=0.001), dropping scores (P=0.001), litter scores (P=0.001), and pH of litter (P=0.001) than PC group. It could be concluded that supplementation of oregano oil at the dose of 500 ppm in diet may have beneficial effect on prevention of coccidiosis in broilers. Copyright © 2015 Elsevier B.V. All rights reserved.

  14. PREVALENCE OF COCCIDIOSIS IN BROILER CHICKENS IN FAISALABAD, PAKISTAN

    Directory of Open Access Journals (Sweden)

    M. M. Ayaz, M. Akhtar, C.S. Hayat, M.A. Hafeez and A. Haq1

    2003-01-01

    Full Text Available A study was conducted during the period from October, 2000 to June, 2001 to record the prevalence of coccidiosis in broiler chickens in Faisalabad district. A total of 930 guts were collected and processed at Immunoparasitology Laboratory, Department of Veterinary Parasitology, University of Agriculture, Faisalabad. Seven species of Eimeria (E viz. E. tenella (50%, E. maxima (40%, E. mitis (2%, E. praecox (0.8%, E. acervulina (4%; E. necatrix (2% and E. brunetti (1.2% were recorded. The overall prevalence of coccidiosis was found to be 37.95%.

  15. STRESS MANAGEMENT FOLLOWING VACCINATION AGAINST COCCIDIOSIS IN BROILERS

    Directory of Open Access Journals (Sweden)

    Asghar Ali, Asim Aslam, Shakil Akhtar Khan, Haji Ahmad Hashmi and Kashif Aziz Khan

    2002-04-01

    Full Text Available The present project was designed to detect the stress following vaccination (Eimeria vaccine against coccidiosis in broilers and its management by using multivitamins and aspirin. The parameters studied were heterophil/lymphocyte ratio, total serum protein, serum glucose and serum cholesterol estimation, for three consecutive post vaccination days. At the end of experiment, on 42nd day, adrenal gland/body weight ratio and histopathology of adrenal gland was performed to assess any change. The results showed no statistically significant differenc among difference groups. However, the group that was given multivitamins showed maximum weight gain and minimum stress, while the aspirin therapy did not show any significant difference.

  16. Extract Has the Potential to Substitute Antibiotic in Broiler Chicken

    Directory of Open Access Journals (Sweden)

    X. Han

    2012-04-01

    Full Text Available Two experiments were conducted to investigate the potential for Forsythia suspensa extract (FSE to substitute for antibiotic in broiler chicken. First, a well-diffusion assay procedure and a 2-fold dilution method were used to determine the bacteriostatic activity of FSE on Escherichia coli K88, staphylococcus aureus, and salmonella was assayed. An inhibitory effect of FSE was observed on the growth of these bacteria. This effect seems to be dose depended, which disappeared after 25.00, 12.50, 1.56 mg/ml. Second, a 42-d trial with 252 broiler chickens (d 1, 38.7±1.1 g BW was conducted to evaluate the effect of dietary supplementation of FSE in broiler chicken. The feeding program consisted of a starter diet from d 1 to 21 and a finisher diet from d 22 to 42. Dietary treatments included were: i NC: negative control fed a corn-soybean meal based diet; ii PC: positive control group fed based diet with chlortetracycline; and iii FC: a test group fed with 100 mg FSE/kg diet. In this study growth performance did not differ among treatments during the starter period. However, dietary supplemental chlortetracycline and FSE increased (p<0.05 average daily gain (ADG, average daily feed intake (ADFI compared with NC during the finisher and overall phase. Apparent digestibility of calcium on d 21, digestibility of energy and calcium on d 42 of FC was greater (p<0.05 than NC. Moreover, cecal Escherichia coli counts for birds from FC were lower (p<0.05 than NC. Dietary FSE supplementation also improved (p<0.05 villus height and villus height to crypt depth ratios in both duodenum and ileum and decreased (p<0.05 crypt depth in the duodenum. Duodenum villus height and villus height to crypt depth ratio in both duodenum and ileum from the FC group were also greater (p<0.05. Serum growth hormone and IGF-1 were not influenced by different treatments. Apparently, FSE has the potential to substitute for antibiotic in broiler chicken.

  17. Heat-resistant bacterial phytase in broiler pelleted diets

    Directory of Open Access Journals (Sweden)

    TC de F Carlos

    2015-03-01

    Full Text Available The objective of the study was to evaluate the effects of a heat-resistant bacterial phytase added to pelleted diets on mineral digestibility, live performance, carcass traits, and bone quality of broilers. Three treatments were evaluated: Positive control; negative control, with 0.10 points reduction in calcium level and 0.15 points reduction in available phosphorus level; and negative control + phytase at 500 FTU/kg. Mineral digestibility and bone quality results demonstrated that the evaluated phytase resisted pelleting as it increased the utilization of the minerals present in the diet.

  18. Choice Feeding and Amino Acid Requirements for Broilers

    OpenAIRE

    B. Indarsih; R.A.E. Pym

    2011-01-01

    The study was conducted as a completely randomized design, with a factorial arrangement todetermine the response of commercial broilers to choice feeding and limiting amino acids on growth andcarcass performance. A total of 432 male birds were weighed at one-d-old and randomly distributed to48 wire-floored brooder cage each 1.0 m2. There were 2 sexes and 4 dietary treatments with 6 replicateseach of 9 birds. Birds were given one of three dietary regimens with dietary change every 7 days. Allg...

  19. Trends in occurrence of antimicrobial resistance in Campylobacter jejuni isolates from broiler chickens, broiler chicken meat, and human domestically acquired cases and travel associated cases in Denmark.

    Science.gov (United States)

    Skjøt-Rasmussen, Line; Ethelberg, Steen; Emborg, Hanne-Dorthe; Agersø, Yvonne; Larsen, Lars S; Nordentoft, Steen; Olsen, Stefan S; Ejlertsen, Tove; Holt, Hanne; Nielsen, Eva Møller; Hammerum, Anette M

    2009-05-31

    Campylobacter jejuni is a frequent cause of bacterial gastroenteritis. Often it causes self-limiting disease but severe or prolonged cases may require antimicrobial treatment. The agricultural use of antimicrobial agents selects for resistance among C. jejuni which is transmitted to humans via food. In Denmark, the use of fluoroquinolones in animal husbandry has been restricted since 2003. The purpose of the present study was to look at trends in occurrence of resistance among C. jejuni from broiler chickens, broiler chicken meat and human domestically acquired or travel associated cases. From 1997 through 2007, C. jejuni isolates were obtained from The Danish Integrated Antimicrobial Resistance Monitoring and Research Programme (DANMAP) and susceptibility tested for ciprofloxacin, erythromycin, nalidixic acid, and tetracycline. Erythromycin resistance was at a low level in all the reservoirs during the study period. Resistance to ciprofloxacin, nalidixic acid and tetracycline was significantly higher in C. jejuni from imported broiler chicken meat compared to Danish broiler chicken meat. In domestically acquired human C. jejuni isolates, resistance to ciprofloxacin and nalidixic acid was for most years significantly higher compared to the level found in isolates from Danish broiler chicken meat, whereas the resistance level was similar to the level found in isolates from imported broiler chicken meat. Imported broiler chicken meat may therefore contribute to the high level of ciprofloxacin and nalidixic acid resistance in C. jejuni isolates from domestically acquired human infections. In 2006 and 2007, the occurrence of resistance to ciprofloxacin, nalidixic acid and tetracycline was significantly higher in travel associated C. jejuni isolates compared to isolates acquired domestically. Even though the use of fluoroquinolones is restricted for animal use in Denmark, Danes are still often infected by fluoroquinolone resistant C. jejuni from imported chicken meat or

  20. Extended-spectrum and AmpC β-lactamase-producing Escherichia coli in broilers and people living and/or working on broiler farms: prevalence, risk factors and molecular characteristics.

    Science.gov (United States)

    Huijbers, P M C; Graat, E A M; Haenen, A P J; van Santen, M G; van Essen-Zandbergen, A; Mevius, D J; van Duijkeren, E; van Hoek, A H A M

    2014-10-01

    The objectives of this study were to: estimate the prevalence of extended-spectrum β-lactamase (ESBL)- and AmpC β-lactamase-producing Escherichia coli carriage among broiler farmers, their family members and employees; identify and quantify risk factors for carriage, with an emphasis on contact with live broilers; and compare isolates from humans and broilers within farms with respect to molecular characteristics to gain insight into transmission routes. A cross-sectional prevalence study was conducted on 50 randomly selected Dutch broiler farms. Cloacal swabs were taken from 20 randomly chosen broilers. Faecal swabs were returned by 141 individuals living and/or working on 47 farms. ESBL/AmpC-producing E. coli were isolated and, for selected isolates, phylogenetic groups, plasmids and sequence types were determined. Questionnaires were used for risk factor analysis. All sampled farms were positive, with 96.4% positive pooled broiler samples. The human prevalence was 19.1%, with 14.3% and 27.1% among individuals having a low and a high degree of contact with live broilers, respectively. Five pairs of human-broiler isolates had identical genes, plasmid families and E. coli sequence types, showing clonal transmission. Furthermore, similar ESBL/AmpC genes on the same plasmid families in different E. coli sequence types in humans and broilers hinted at horizontal gene transfer. The prevalence among people on broiler farms was higher than in previous studies involving patients and the general population. Furthermore, an increased risk of carriage was shown among individuals having a high degree of contact with live broilers. The (relative) contribution of transmission routes that might play a role in the dissemination of ESBL/AmpC-encoding resistance genes to humans on broiler farms should be pursued in future studies. © The Author 2014. Published by Oxford University Press on behalf of the British Society for Antimicrobial Chemotherapy. All rights reserved. For

  1. Water intake behavior of broiler chickens exposed to heat stress and drinking from bell or and nipple drinkers

    Directory of Open Access Journals (Sweden)

    LDG Bruno

    2011-06-01

    Full Text Available The aspects involved in broiler water intake are not well known, despite the importance of water in animal nutrition and physiology. Water intake behavior should be taken into account when deciding on different types of drinkers. Bell and nipple drinkers are the most commonly used in commercial broiler production. Broilers were housed in cages equipped with two different drinker types and raised at two different environmental temperatures (25 and 34 ºC to evaluate water intake behavior and volume. Broiler water intake behavior was influenced by drinker type. Birds visited bell drinkers less often, but presented higher total water intake per visit to the drinker as compared to those drinking from nipple drinkers. The results of this study suggest that both broilers drinking behavior and water intake volume should be taken into account when deciding on drinker type to equip broiler houses.

  2. Spread of extended spectrum cephalosporinase-producing Escherichia coli clones and plasmids from parent animals to broilers and to broiler meat in a production without use of cephalosporins.

    Science.gov (United States)

    Agersø, Yvonne; Jensen, Jacob Dyring; Hasman, Henrik; Pedersen, Karl

    2014-09-01

    This study investigated the occurrence of extended spectrum cephalosporinase (ESC)-producing Escherichia coli in a broiler production with no cephalosporin use and a low use of antimicrobials in general. Furthermore, it investigated whether the current consumption of aminopenicillins selects for ESC-producing E. coli and whether certain clones or plasmids spread from imported parent flocks to the meat. ESC-producing E. coli was isolated using MacConkey broth with 1 mg/L of ceftriaxone. ESC genes were identified using polymerase chain reaction and sequencing. Isolates with blaCMY-2 were subtyped by pulsed-field gel electrophoresis (PFGE), phylotyping, and antimicrobial susceptibility testing. Selected isolates were used as donors in filter-mating experiments, multilocus sequence typing (MLST), and plasmid replicons were typed. Aminopenicillin use at the farm (not flock) level was obtained from VetStat, a database for mandatory registration of veterinary prescriptions in Denmark. ESC-producing E. coli occurred in 93% (27/29) of broiler parent farms in 2011, 27% (53/197) of broiler flocks in 2010, and 3.3% (4/121) of Danish retail broiler meat in 2009 and 8.6% (16/187) in 2010. The ESC producing E. coli contained blaCMY-2, blaSHV-2 or blaCTX-M-1. Isolates with blaCMY-2 represented 35 PFGE groups. One group dominated (39 isolates) and included isolates with indistinguishable PFGE patterns from parents, broilers, and meat. Most blaCMY-2 isolates were susceptible to non-β-lactams, and blaCMY-2 was mostly present on horizontally transferable incI1 or incK plasmids. Phylogroup D was most common and E. coli MLST types previously found in humans were observed. Broiler farms with registered aminopenicillin use had significantly higher occurrence of ESC E. coli. ESC-producing E. coli from flocks of imported broiler parents spread clonally and horizontally to broiler meat (including potentially human pathogenic types) even in a country with no cephalosporin use. Use of

  3. Evaluation of fatty acid metabolism and innate immunity interactions between commercial broiler, F1 layer × broiler cross and commercial layer strains selected for different growth potentials.

    Science.gov (United States)

    Willson, Nicky-Lee; Forder, Rebecca E A; Tearle, Rick G; Nattrass, Greg S; Hughes, Robert J; Hynd, Philip I

    2017-01-01

    The broiler industry has undergone intense genetic selection over the past 50 yr. resulting in improvements for growth and feed efficiency, however, significant variation remains for performance and growth traits. Production improvements have been coupled with unfavourable metabolic consequences, including immunological trade-offs for growth, and excess fat deposition. To determine whether interactions between fatty acid (FA) metabolism and innate immunity may be associated with performance variations commonly seen within commercial broiler flocks, total carcass lipid %, carcass and blood FA composition, as well as genes involved with FA metabolism, immunity and cellular stress were investigated in male birds of a broiler strain, layer strain and F1 layer × broiler cross at d 14 post hatch. Heterophil: lymphocyte ratios, relative organ weights and bodyweight data were also compared. Broiler bodyweight (n = 12) was four times that of layers (n = 12) by d 14 and had significantly higher carcass fat percentage compared to the cross (n = 6; P = 0.002) and layers (P = 0.017) which were not significantly different from each other (P = 0.523). The carcass and whole blood FA analysis revealed differences in the FA composition between the three groups indicating altered FA metabolism, despite all being raised on the same diet. Genes associated with FA synthesis and β-oxidation were upregulated in the broilers compared to the layers indicating a net overall increase in FA metabolism, which may be driven by the larger relative liver size as a percentage of bodyweight in the broilers. Genes involved in innate immunity such as TLR2 and TLR4, as well as organelle stress indicators ERN1 and XBP1 were found to be non-significant, with the exception of high expression levels of XBP1 in layers compared to the cross and broilers. Additionally there was no difference in heterophil: lymphocytes between any of the birds. The results provide evidence that genetic selection

  4. The influence of broiler activity, growth rate, and litter on carbon dioxide balances for the determination of ventilation flow rates in broiler production.

    Science.gov (United States)

    Calvet, S; Estellés, F; Cambra-López, M; Torres, A G; Van den Weghe, H F A

    2011-11-01

    Carbon dioxide balances are useful in determining ventilation rates in livestock buildings. These balances need an accurate estimation of the CO(2) produced by animals and their litter to determine the ventilation flows. To estimate the daily variation in ventilation flow, it is necessary to precisely know the daily variation pattern of CO(2) production, which mainly depends on animal activity. The objective of this study was to explore the applicability of CO(2) balances for determining ventilation flows in broiler buildings. More specifically, this work aimed to quantify the amount of CO(2) produced by the litter, as well as the amount of CO(2) produced by the broilers, as a function of productive parameters, and to analyze the influence of broiler activity on CO(2) emissions. Gas concentrations and ventilation flows were simultaneously measured in 3 trials, with 1 under experimental conditions and the other 2 in a commercial broiler farm. In the experimental assay, broiler activity was also determined. At the end of the experimental trial, on the day after the removal of the broilers, the litter accounted for 20% of the total CO(2) produced, and the broilers produced 3.71 L/h of CO(2) per kg of metabolic weight. On the commercial farm, CO(2) production was the same for the 2 cycles (2.60 L/h per kg of metabolic weight, P > 0.05). However, substantial differences were found between CO(2) and broiler activity patterns after changes in light status. A regression model was used to explain these differences (R(2) = 0.52). Carbon dioxide increased with bird activity, being on average 3.02 L/h per kg of metabolic weight for inactive birds and 4.73 L/h per kg of metabolic weight when bird activity was highest. Overall, CO(2) balances are robust tools for determining the daily average ventilation flows in broiler farms. These balances could also be applied at more frequent intervals, but in this case, particular care is necessary after light status changes because of

  5. Polymerase chain reaction detection of naturally occurring Campylobacter in commercial broiler chicken embryos

    National Research Council Canada - National Science Library

    Hiett, K. L; Cox, N. A; Rothrock, M. J

    2013-01-01

    .... In this investigation, 2 trials were performed where tissues from 7-, 14/15-, and 19-d-old commercial broiler chicken embryos were tested for the presence of Campylobacter using both culturing methodology and PCR...

  6. Analysis of farm specific risk factors for Campylobacter colonization of broilers in six European countries

    DEFF Research Database (Denmark)

    Sommer, Helle Mølgaard; Borck Høg, Birgitte; Larsen, Lars Stehr

    2016-01-01

    This study presents on-farm risk factors for the colonization of broiler flocks with Campylobacter based on comparable data from six European countries: Denmark, the Netherlands, Norway, Poland, Spain, and the UK. The study includes explanatory variables from a large questionnaire concerning...... production, farm management procedures and farm conditions, climate data on mean temperature, sunshine hours, and precipitation, as well as data on Campylobacter status of broiler flocks. All together the study comprises data from more than 6000 flocks. The data were analysed using a generalized linear model....... These were generally related to inadequate biosecurity. Identified risk factors were: broiler houses older than 15 years, absence of anterooms and barriers in each house, shared tools between houses, long downtime, and drinker systems with bells or cups. Also, the risk of broiler flocks becoming colonized...

  7. Variation and pearson correlation coefficients of warner-bratzler shear force measurements within broiler breast fillets

    Science.gov (United States)

    Measurements of texture properties related to tenderness at different locations within deboned broiler breast fillets have been used to validate techniques for texture analysis and establish correlations between different texture evaluation methods. However, it has been demonstrated that meat text...

  8. Digestible isoleucine requirements for 22- and 42-day-old broilers

    Directory of Open Access Journals (Sweden)

    Karina Ferreira Duarte

    2015-02-01

    Full Text Available Current experiment established different criteria to evaluate the requirements of digestible isoleucine for 22- and 42-day-old broilers by different regression models (quadratic, exponential and Linear Response Plateau and, in the case of statistical significance, the comparison of means by Duncan’s test at 5% probability. A total of 1,920 Cobb 500 male broilers were used in an entirely randomized experimental design, with 6 treatments (6 digestible isoleucine levels: 0.6118; 0.6655; 0.7192; 0.7729; 0.8265 and 0.8802% and 8 replications, with 40 broilers each. Data on performance and carcass characteristics were evaluated. Level 0.7192% of digestible isoleucine was considered standard. The digestible isoleucine level recommended for 22- and 42-day-old broilers is 0.7729%, corresponding to a digestible isoleucine:lysine ratio of 72%.

  9. The Effect of Microbial Phytase on Blood Performance of Broiler Chickens

    Directory of Open Access Journals (Sweden)

    Martin Kliment

    2011-05-01

    Full Text Available An experiment was conducted to determinate the effect of microbial phytase supplementation on broiler chickens blood performance (calcium, phosphorus, magnesium, using 300 day-old commercial broiler chickens Cobb 500 from 1 to 42 days of age. The aim of study was the monitoring and mathematic-statistical evaluating of the effect of microbial phytase (0.1% in feed mixtures with different content of total phosphorus (control group 4.5% of phosphorus, trial group 2.3% of phosphorus, trial group 2.3% of phosphorus + phytase 0.1%. The biochemical values of blood coefficients were evaluated by automatic clinical analyzer Microlab 300. The values of phosphorus, calcium and magnesium content in the blood of broilers were not statistically significant (P>0.05. In addition we concluded that phytase supplementation to the feed mixtures did not influence calcium, phosphorus and magnesium content in the blood of broiler chickens.

  10. Antibiotic use in Brazilian broiler and pig production: an indication and forecast of trends

    NARCIS (Netherlands)

    Bokma-Bakker, M.H.; Bondt, N.; Neijenhuis, F.; Mevius, D.J.; Ruiter, S.J.M.

    2014-01-01

    To gain insight in antibiotic use in relation to imported products the current use of antibiotics in pork and broiler production in Brazil are identified and trend forecasting of antibiotic use in the coming 3-5 years is performed.

  11. Effects of anticoccidial and antibiotic growth promoter programs on broiler performance and immune status

    Science.gov (United States)

    This study investigated the effects of various coccidiosis control programs in combination with antibiotic growth promoters (AGPs) on growth performance and host immune responses in broiler chickens. The coccidiosis programs that were investigated include in ovo coccidiosis vaccination (CVAC) with ...

  12. Dietary protease can alleviate negative effects of a coccidiosis infection on production performance in broiler chickens

    NARCIS (Netherlands)

    Peek, H.W.; Klis, van der J.D.; Vermeulen, B.; Landman, W.J.M.

    2009-01-01

    Two experiments were conducted to determine the effect of dietary protease on coccidiosis infection, production performance, the intestinal mucus layer thickness, and brush border enzyme activity using broilers challenged with Eimeria spp. laboratory isolates (Eimeria acervulina, E. maxima and E.

  13. Plantago ovata in broiler chicken nutrition: Performance, carcass criteria, intestinal morphology, immunity, and intestinal bacterial population.

    Science.gov (United States)

    Divani, A; Bagherzadeh-Kasmani, F; Mehri, M

    2018-02-01

    In this experiment, the effect of dietary Plantago ovata (PO) on performance, carcass criteria, intestinal morphology, immunity, and intestinal bacterial population of broiler chickens was evaluated. A total of 250 one-day-old male broiler chicks (Ross 308) were randomly assigned to five treatments containing 0, 5, 10, 15, or 20 g/kg of PO with five replicate pens and 10 birds in each replicate. Dietary PO increased body weight gain and decreased feed conversion ratio in the finisher period, improving the performance index (p broiler chickens. This study showed that PO at the level of 10 g/kg could be considered as a beneficial feed additive in broiler diet. © 2017 Blackwell Verlag GmbH.

  14. Antioxidant capacity and meat quality of broilers exposed to different ambient humidity and ammonia concentrations.

    Science.gov (United States)

    Wei, F X; Hu, X F; Sa, R N; Liu, F Z; Li, S Y; Sun, Q Y

    2014-04-17

    To investigate the effect of humidity and ammonia on the antioxidative capacities and meat qualities of broilers, 192 broilers were divided into 2 groups: high (H, 70 ppm) and low (L, 30 ppm) ammonia concentration. These groups were divided into 30% (Treatment humidity, T) and 60% (Control humidity, C) humidity, giving 4 treatments: C+L, C+H, T+L, and T+H. Blood and muscle antioxidative capacities and meat quality were measured. In the H group, body weight (BW), average daily feed intake (ADFI), average daily weight gain (ADG), blood and muscle antioxidative capacities, and postmortem pectoral muscle a* of broilers were significantly decreased (P meat quality of broilers; T intensified these negative effects.

  15. Analysis of changes in egg quality of broiler breeders during the first reproduction period

    National Research Council Canada - National Science Library

    Helena Kontecka; Sebastian Nowaczewski; Marta M. Sierszuła

    2012-01-01

    .... The aim of the study was to analyse the physical characteristics, morphological composition and quality of individual components of the eggs of Cobb 500 broiler breeders during the first year of reproduction...

  16. Molecular survey of bacterial communities associated with bacterial chondronecrosis with osteomyelitis (BCO) in broilers

    National Research Council Canada - National Science Library

    Jiang, Tieshan; Mandal, Rabindra K; Wideman, Jr, Robert F; Khatiwara, Anita; Pevzner, Igal; Min Kwon, Young

    2015-01-01

    .... Using Illumina sequencing of the hyper-variable region V6 in the 16S rRNA gene, we characterized the bacterial communities in 97 femoral or tibial heads from normal and lame broilers carefully...

  17. Molecular Survey of Bacterial Communities Associated with Bacterial Chondronecrosis with Osteomyelitis (BCO) in Broilers: e0124403

    National Research Council Canada - National Science Library

    Tieshan Jiang; Rabindra K Mandal; Robert F Wideman; Anita Khatiwara; Igal Pevzner; Young Min Kwon

    2015-01-01

    .... Using Illumina sequencing of the hyper-variable region V6 in the 16S rRNA gene, we characterized the bacterial communities in 97 femoral or tibial heads from normal and lame broilers carefully...

  18. Sources of trophic action on performance and intestinal morphometry of broiler chickens vaccinated against coccidiosis

    Directory of Open Access Journals (Sweden)

    MI Sakamoto

    2014-12-01

    Full Text Available The aim of this experiment was to evaluate the effect of sources of trophic action (glutamine alone, glutamine associated with glutamic acid and yeast associated with vaccination against coccidiosis on the performance and morphometry of the small intestine of broilers. In the trial, 1,200 broiler chicks were distributed according to a completely randomized design with a 3 x 2 + 2 (trophic action x vaccination or not + control - free trophic factor factorial arrangement, with five replicates of 30 birds each. Vaccination negatively affected performance parameters and the morphometry of the intestinal mucosa, but at the end of the experimental period, among the broilers vaccinated against coccidiosis, the group fed glutamine presented better recovery from epithelial losses of the intestinal mucosa compared with the control groups. Therefore, the dietary supplementation with the evaluated sources of trophic action could be a strategy to enhance the development of broilers submitted to vaccine stress, also considering the economic viability of the productive segment.

  19. Innovatieve huisvesting voor vleeskuikenouderdieren: "Quality Time" stal = Innovative broiler breeder housing system: 'Quality Time' house

    OpenAIRE

    Emous, van, R.A.; Gunnink, H.

    2011-01-01

    In this study results are presented of the research of implementing the innovative housing system "Quality Time" concept in a practical poultry house for broiler breeders. The "Quality Time" concept can improve the sexual behaviour and fertility of the eggs.

  20. Effect of dietary iron and copper on performance and oxidative stability in broiler leg meat.

    Science.gov (United States)

    Ruiz, J A; Pérez-Vendrell, A M; Esteve-Garcia, E

    2000-05-01

    1. An experiment was carried out to determine the effect of removal of supplemental iron and copper from broiler diets during the last 3 weeks before slaughter on broiler performance, tissue vitamin E concentrations and oxidation values in raw; cooked and stored broiler leg meat. 2. Removal of supplemental iron and copper from the diet slightly decreased food efficiency; the differences were significant only when both minerals were removed simultaneously 3. Effect of iron withdrawal on iron concentration in tissue was low. However, total copper concentration in tissue was reduced in animals deprived of iron or both minerals simultaneously. 4. Removal of dietary iron and copper did not affect vitamin E concentration in raw and cooked meat, while stored meat showed lower concentrations in animals deprived of iron and copper simultaneously. 5. The removal of iron and copper from the diet reduced oxidation values in cooked broiler leg meat as measured by the thiobarbituric acid-reacting substances method (TBARS).

  1. Performance and meat quality of broiler chickens that are fed diets supplemented with Agaricus brasiliensis mushrooms.

    Science.gov (United States)

    Guimarães, João Borges; Dos Santos, Eder Clementino; Dias, Eustáquio Souza; Bertechini, Antônio Gilberto; da Silva Ávila, Carla Luiza; Dias, Francesca Silva

    2014-12-01

    This trial was performed to study the use of the mushroom Agaricus brasiliensis as an alternative additive to antimicrobial growth promoters in broiler chicken diets and to assess the quality of the broiler chicken breast meat of birds that are fed diets containing this fungus. Thus, 595 1-day-old chicks were reared in reused poultry litter without anticoccidial and antimicrobial additives. The results showed that a concentration of 1.6 g mushrooms/kg diet was ideal for these birds because it provided better bird performance. When the birds' immune system organs were analyzed, it was found that the addition of both mushrooms influenced the immune system organs of these broiler chickens. Adding A. brasiliensis to broiler chicken diets did not compromise breast meat quality.

  2. Effects of Shrimp Meal Fermented with Aspergillus niger On Physical Quality of Broiler Meat

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    Djalal Rosyidi

    2012-02-01

    Full Text Available The research materials were 75 broiler chickens of 1 day old and feeds. The research employed five treatments, namely (P0: feed without addition of fermented shrimp meal, P1: feed with 5 % addition of fermented shrimp meal, P2: feed with 7.5 % addition of fermented shrimp meal, P3: feed with 10 % addition of fermented shrimp meal, P4: feed with 12.5 % addition of fermented shrimp meal. Every treatment was repeated 3 times, with 5 chickens respectively. Variables of this research were Water Holding Capacity (WHC, cooking loss and tenderness of broiler meat. Data were analyzed by completely randomized design, if there was a significant effect, it was followed by Duncan’s Multiple Range Test (DMRT. The result of this research showed that the use of fermented shrimp meal in broiler feed can improve WHC, degrading cooking loss and improving tenderness of broiler meat.   Keywords : Water holding capacity, cooking loss, tenderness

  3. Evaluation of different plate media for direct cultivation of Campylobacter species from live broilers.

    Science.gov (United States)

    Potturi-Venkata, L-P; Backert, S; Lastovica, A J; Vieira, S L; Norton, R A; Miller, R S; Pierce, S; Oyarzabal, O A

    2007-07-01

    Accurate identification and optimal culturing procedures for Campylobacter spp. from live broilers are needed for epidemiological studies. Because there is no standardized protocol, we designed and conducted studies to evaluate different selective media for the culturing and isolation of Campylobacter spp. from cecal and fecal samples obtained from battery-reared and commercial broilers. Five media selective for Campylobacter were evaluated: Campylobacter agar base, Campylobacter, Campy-Line, modified Campy-Cefex, and modified charcoal cefoperazone deoxycholate agar. With contaminated broilers reared in battery cages, Campylobacter agar base, Campylobacter, modified Campy-Cefex, and modified charcoal cefoperazone deoxycholate agar revealed similar isolation rates (P > 0.05), whereas Campy-Line showed a lower efficacy (P media. Our data suggest that the choice of plate medium may influence the efficiency of isolating Campylobacter spp. from broiler chickens by direct plating from fecal or cecal samples.

  4. Accumulation of melanin in the peritoneum causes black abdomens in broilers.

    Science.gov (United States)

    Wang, J; Wang, Y; Luo, C; Qu, H; Shu, D

    2014-03-01

    A suspected case of localized visceral hyperpigmentation was described for a breed of broiler in China. Using optical microscopy, the accumulation of pigments in the abdominal skin and visceral peritoneum was observed. Electron microscopy was used to further study the ultrastructure of the pigmented peritoneum, and pigment granules resembling melanosomes at different stages were found, and melanocytes were present in this tissue. Infrared spectroscopy was used to analyze the physical-chemical properties of pigments extracted from these broilers. Using synthetic melanin as a reference and the melanin from the peritoneum of Silkie fowls as a control, the pigments in the peritonea of these broilers were found to be melanin, and it had a chemical structure similar to that of melanin from the Silkie fowl peritoneum. In this way, the black abdomens of these broilers were found to have been caused by accumulation of melanin produced by melanocytes in visceral peritonea.

  5. Serological profiles of commercial broiler breeders and their progeny. 2. Newcastle disease virus.

    Science.gov (United States)

    King, D J

    1986-01-01

    Newcastle disease virus (NDV) hemagglutination-inhibition (HI) titers were determined for serum samples from eight commercial broiler breeder flocks and their progeny. The chickens sampled had been vaccinated and reared by different producers in different regions of the United States. Breeder flocks had the highest number of NDV-positive HI titers (greater than or equal to 1:10). Eighty percent or more of the samples from six of eight breeder flocks were positive; the geometric mean titers (GMTs) for those six breeder flocks ranged from 19 to 92. Only 3 of 8 broiler flocks had an increased frequency of positive titers and higher GMTs after vaccination. The frequency of positive titers was greater than 80% in only 2 of 8 of the oldest broiler flocks. The number of NDV-negative titers (less than 1:10) increased with age in most broiler flocks, even though all had been vaccinated once or more with live NDV vaccines.

  6. Transcriptional profile of breast muscle in heat stressed layers is similar to that of broiler chickens at control temperature.

    Science.gov (United States)

    Zahoor, Imran; de Koning, Dirk-Jan; Hocking, Paul M

    2017-09-20

    In recent years, the commercial importance of changes in muscle function of broiler chickens and of the corresponding effects on meat quality has increased. Furthermore, broilers are more sensitive to heat stress during transport and at high ambient temperatures than smaller egg-laying chickens. We hypothesised that heat stress would amplify muscle damage and expression of genes that are involved in such changes and, thus, lead to the identification of pathways and networks associated with broiler muscle and meat quality traits. Broiler and layer chickens were exposed to control or high ambient temperatures to characterise differences in gene expression between the two genotypes and the two environments. Whole-genome expression studies in breast muscles of broiler and layer chickens were conducted before and after heat stress; 2213 differentially-expressed genes were detected based on a significant (P broilers compared with control and heat-stressed layers. Expression of these genes was further increased in heat-stressed broilers. Differences in gene expression between broiler and layer chickens under control and heat stress conditions suggest that damage of breast muscles in broilers at normal ambient temperatures is similar to that in heat-stressed layers and is amplified when broilers are exposed to heat stress. The patterns of gene expression of the two genotypes under heat stress were almost the polar opposite of each other, which is consistent with the conclusion that broiler chickens were not able to cope with heat stress by dissipating their body heat. The differentially expressed gene networks and pathways were consistent with the pathological changes that are observed in the breast muscle of heat-stressed broilers.

  7. Presence of ESBL/AmpC -Producing Escherichia coli in the Broiler Production Pyramid: A Descriptive Study

    Science.gov (United States)

    Dierikx, Cindy M.; van der Goot, Jeanet A.; Smith, Hilde E.; Kant, Arie; Mevius, Dik J.

    2013-01-01

    Broilers and broiler meat products are highly contaminated with extended spectrum beta-lactamase (ESBL) or plasmid-mediated AmpC beta-lactamase producing Escherichia coli and are considered to be a source for human infections. Both horizontal and vertical transmission might play a role in the presence of these strains in broilers. As not much is known about the presence of these strains in the whole production pyramid, the epidemiology of ESBL/AmpC-producing E. coli in the Dutch broiler production pyramid was examined. Cloacal swabs of Grandparent stock (GPS) birds (one−/two-days (breed A and B), 18 and 31 weeks old (breed A)), one-day old Parent stock birds (breed A and B) and broiler chickens of increasing age (breed A) were selectively cultured to detect ESBL/AmpC-producing isolates. ESBL/AmpC-producing isolates were found at all levels in the broiler production pyramid in both broiler breeds examined. Prevalence was already relatively high at the top of the broiler production pyramid. At broiler farms ESBL/AmpC producing E. coli were still present in the environment of the poultry house after cleaning and disinfection. Feed samples taken in the poultry house also became contaminated with ESBL/AmpC producing E. coli after one or more production weeks. The prevalence of ESBL/AmpC-positive birds at broiler farms increased within the first week from 0–24% to 96–100% independent of the use of antibiotics and stayed 100% until slaughter. In GPS breed A, prevalence at 2 days, 18 weeks and 31 weeks stayed below 50% except when beta-lactam antibiotics were administered. In that case prevalence increased to 100%. Interventions minimizing ESBL/AmpC contamination in broilers should focus on preventing horizontal and vertical spread, especially in relation to broiler production farms. PMID:24244401

  8. The effects of the avilamycin, Protexin® and basil essential oil supplements on ileal bacteria of broiler chickens

    OpenAIRE

    Seyyed Reza Riyazi; Yahya Ebrahimnezhad; Sayed Abdoullah Hosseini; Amir Meimandipour; Abolfazl Ghorbani

    2015-01-01

    The effects of probiotic (Protexin®, Protexin Veterinary, Somerset, UK), medicinal plant (basil essential oil) and an antibiotic growth promoter (avilamycin) as broiler feed additives on ileal bacteria of broilers were studied. A total of 600 Arian broilers were divided into 6 treatments, with 4 replicates of 25 birds. Treatments were a plant essential oil in 3 level (200, 400 and 600 ppm), the probiotic (150 ppm), an antibiotic (150 ppm) and a control group with no additives. Birds in differ...

  9. Pemberian Teh Kombucha Pada Air Minum Terhadap Nilai Ldl Kolesterol Dan Hdl Kolesterol Darah Ayam Broiler (Gallus SP)

    OpenAIRE

    Djaelani, Muhammad Anwar; Tana, Silvana

    2015-01-01

    The risk of consuming large quantities of food containing cholesterol has been widely known. By knowing the cholesterol content of food products, people could restrict their consumption of high cholesterol food. This study was to knew LDL cholesterol and HDL cholesterol of blood broiler chickens after treated with kombucha tea. This research used the CP 707 broiler strains chickens aged 1 week, treated with kombucha tea that has been fermented for 12 days at a temperature of 25oC. 20 broiler ...

  10. Effect of corn DDGS on broilers performance and meat quality

    Directory of Open Access Journals (Sweden)

    Marian Foltyn

    2013-01-01

    Full Text Available The effects of graded levels of corn distillers dried grains with soluble (DDGS as partial replacement for soybean meal in diets for broilers were observed. In the first experiment 900 males of ROSS 308 were used and they fed diets with 0, 60, 120 and 180 g/kg DDGS in grower diets (Control group, D6, D12 and D18 from 9th to 35th day of age. In the second experiment 800 broilers both sex of COBB 500 were used and they fed diets with 0 and 200 g/kg DDGS in grower diets (Control group and D20 from 9th to 35th day of age. Until age 30th day there were not significant differences among the groups in live weight in the first experiment. But at 35th day of age the live weight of chickens fed 60 and 120 g/ kg DDGS (2498.5 g and 2496.3 g was significantly higher (P th to 35th day of age significantly higher (P th day of age was 75.7 g. Feed conversion ratio was similar in all groups in both experiments. There was not observed significant effect of DDGS on weight and proportion of abdominal fat. Feeding DDGS had significant effect (P < 0.05 on decrease the lightness (L* of breast meat in the first experiment, which was not confirmed in the second experiment.

  11. Activities and Ergonomics of Workers in Broiler Hatcheries

    Directory of Open Access Journals (Sweden)

    CCS Carvalho

    2015-06-01

    Full Text Available The objective this study was to assess ergonomic factors, posture and biomechanics of workers of a broiler egg hatchery. The analysis of ergonomic factors was based on physical work load, thermal environment, and exposure to light and noise. The posture of workers was analyzed using photographic records which were evaluated by the software program OWAS (Ovako Working Posture Analysing System. A biomechanics analysis was also performed based on the photographs taken of the employee at various angles, which were used as inputs to the Michigan two-dimensional biomechanical model software program. The results show that certain activities can be considered unhealthy due to the exposure of employees to physical and thermal overload. The continuous noise levels and lighting were outside the range considered adequate by the regulations of the Brazilian Ministry of Labor. The manner in which certain activities are carried out when associated with weight and poor posture can result in body lesions in broiler hatchery employees. It is therefore necessary to apply specific ergonomic programs, including scheduled breaks, training, and other measures in order to reduce or to eliminate the risks involved in these activities.

  12. Phytase in broiler diets with reduced nonphytate phosphorus levels

    Directory of Open Access Journals (Sweden)

    Vera Maria Barbosa de Moraes

    2009-12-01

    Full Text Available This work evaluated the inclusion of phytase in diets with reduced nonphytate phosphorus (NPP levels in relation to the performance and carcass yield of broilers and litter characteristics. The experimental design was completely randomized in a 2 x 3 factorial arrangement – two phytase levels (0 and 25U/kg and three NPP levels (100, 85 and 70% of the requirement, in a total of six treatments with fi ve replicates. The reduction of the NPP to 70% of the requirement decreased the weight gain and feed intake and increased the feed:gain ratio. Phytase inclusion increased the weight gain and the feed intake at 21 days. The NPP x phytase interaction was signifi cant with regard to the weight gain at 42 days. The reduction of NPP to 70% diminished the feed intake at 42 days and increased the liver and heart relative weight. Nitrogen content was lower in the litter of broilers fed diets with phytase and decreased phosphorus content, due to the NPP reduction in the diets. It was concluded that diets with 85% of NPP, supplemented with 25U/kg of phytase, can be used with no negative effect on performance or carcass and litter characteristics.

  13. Impact of salinomycin on the intestinal microflora of broiler chickens

    Directory of Open Access Journals (Sweden)

    Pedersen Karl

    2007-10-01

    Full Text Available Abstract Background The ionophoric coccidiostat salinomycin is widely used in chicken feed. In the near future the use of ionophore coccidiostats may be banned as has been the case for other antimicrobial growth promoters. This study was conducted to examine the effect of salinomycin on Campylobacter jejuni infection and on the composition of the caecal microflora in broiler chickens. Methods An experimental infection study was carried out in isolators and the intestinal microflora was analyzed using quantitative cultivation, denaturant gradient gel electrophoresis (DGGE, cloning and sequencing. Results We found no effect of salinomycin on C. jejuni but salinomycin significantly affected the composition of the microflora. In addition, salinomycin significantly reduced the prevalence of Clostridium perfringens and we observed a significant increase (62% in the mean body weight of salinomycin treated chickens compared to un-treated controls. Conclusion Termination of the use of ionophore coccidiostats will not affect food safety related to campylobacter, but will increase the risk of necrotic enteritis in the broilers.

  14. Microbiological quality of broiler carcasses during slaughter processing

    Directory of Open Access Journals (Sweden)

    Irena Svobodová

    2012-01-01

    Full Text Available Microbial contamination of poultry carcasses can be influenced by many factors during transport and slaughtering. The aim of this study was to evaluate the impact of four processing steps (plucking, evisceration, washing and chilling on the total viable counts (TVC, counts of Escherichia coli, Salmonella spp. and Listeria spp. incidence on broiler carcasses. A total of 160 broiler carcasses originating from one farm were collected during one year period at a Czech slaughterhouse and examined. Both TVC and E. coli counts decreased during processing from 4.6 log cfu/cm2 and 3.5 log cfu/cm2 to 3.7 log cfu/cm2 and 1.8 log cfu/cm2, respectively, with a major impact of washing on TVC and washing and chilling on E. coli decrease (P Salmonella spp. (6 strains and Listeria spp. (12 strains, none of L. monocytogenes were found sporadically in all processing steps followed. However, a decreasing trend was observed in Salmonella counts and Listeria spp. incidence during the processing. Thus, this study brings new valuable information on the dynamics of microflora during modern poultry processing.

  15. EFFECTS OF IMMUNOSTIMULANTS ON BROILERS SUFFERING FROM INFECTIOU: BURSAL DISEASE

    Directory of Open Access Journals (Sweden)

    F. Mushtaq, S. A. Khan, A. Aslam, K. Saeed1, G. Saleem and H. Mushtaq

    2003-01-01

    Full Text Available This project was aimed to evaluate immunostimulatory effects of three therapeutic substances in broilers suffering from infectious bursal disease (IBD. For this purpose, 150 chicks were divided into five equal groups i.e. A, B, C, D and E having 30 birds each. Group A, B, C and D were challenged with infectious bursal disease virus. There were three immunostimulatory treatments i.e. levamisole (group A, vitamin E (group B, and bursinex (group C. Groups D and E were untreated control. Bursa body weight index, histopathology of bursa of Fabricius, plasma cell counting in Harderian gland and estimation of antibody response against infectious bursal disease virus was recorded. Vitamin E played a major role in improving the condition of birds suffering from infectious bursal disease, as it showed increased bursa body weight index (BBIx, less histopathological lesions in bursa of Fabricius, increased number of plasma cells in Harderian gland and high antibody response in infectious bursal disease infected broilers as compared to levamisole and bursinex. Levamisole played a minor role in improving condition of birds, while bursinex did not seem to be much effective against infectious bursal disease virus in this study.

  16. Assessment of Broiler Chicken Welfare in Southern Brazil

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    JF Federici

    2016-03-01

    Full Text Available Abstract Scientific literature on broiler chicken welfare in Brazilian industrial systems is scarce. This study aimed at assessing broiler chicken welfare on industrial farms in the State of Rio Grande do Sul, Southern Brazil, using the Welfare Quality(r assessment protocol for poultry, to provide directly applicable scientific information. Results are presented as criteria scores ranging from 0 to 100, with higher scores indicating better welfare; and percentages of prevalence. The scores classified as excellent (above 80 were absence of prolonged thirst, absence of prolonged hunger, litter quality, breast blister and touch test. Enhanced scores (between 55 and 80 were comfort around resting, plumage cleanliness and dust sheet test. Acceptable scores (between 20 and 55 were thermal comfort, stocking density, absence of injuries, footpad dermatitis and hock burn; and unacceptable scores (below 20 were lameness and qualitative behavioral assessment. The median percentage of mortality and culled birds were 5.2% and 0.6%, respectively. This study provides useful information to select priorities of action on assessed farms and may contribute for setting up legal standards and guiding decisions related to animal welfare issues in Brazil.

  17. IMMUNOMODULATORY EFFECT OF PHYTO-ADDITIVES IN BROILER CHICKENS

    Directory of Open Access Journals (Sweden)

    LAVINIA ŞTEF

    2007-05-01

    Full Text Available The experiment was been performed in the sector of Nutrition and Animal Feeding discipline from Timisoara Didactic Station, on a 6 week period, beginning with hatching and finishing with 42 days of age, on 120 broilers divided into four experimental variants, each of them with 30 individuals. In LEU group was incorporated essential oils of Satureja hortensis, Mentha piperita and Hyperici herba 250 mg in 1 kg combined fodder, in LEP group was included in combined fodder structure a plants premix in 2%, in LEUP group was incorporated plants premix 2% +250 mg essential oil of Satureja hortensis, Mentha piperita, Hyperici herba in 1 kg combined fodder. After seric lizozime quntification was observed an increase with 303.46% in LEPU group, followed by LEU with 200.14%, results who demonstrated the presence of an immunological stimulation in broiler chickens. Increased values of seric properdine were observed in LEPU group, with 210.45% more increased in comparison with LM group, followed by LEU group, demonstrating that the changing of unspecific immune effectors values took place like a result of a exogenous substance with immunomodulator effect. Was also observed an easy increase of limfocytes in LPU group, but not so important like in first two determinations, if the experiment will continue, these values maybe will be significant increased, taking into consideration that these increases become more evident after a period of time after stimulation.

  18. Nutritional value of green seaweed (Ulva lactuca for broiler chickens

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    Alaeldein M. Abudabos

    2013-04-01

    Full Text Available The current work aimed to assess the potential of the green seaweed Ulva lactuca (U. lactuca as an alternative ingredient in broiler chicken diets. The effect of substituting 1.0 or 3.0% of corn with U. lactuca on performance, carcass characteristics, serum constituents and nutrients retention of broilers from 12 to 33 d of age was evaluated. Three treatments were distributed in a RCBD design: T1 = control diet (0% U. lactuca; T2 = 1.0 % U. lactuca; T3 = 3.0 % U. lactuca. Cumulative feed intake (FI, body weight gain (BWG, feed conversion ratio (FCR and nutrients retention from 12 to 33 d of age were not affected by treatment (P>0.05. Birds which had received T3 had a higher dressing percentage and breast muscle yield compared to those which had received T1 or T2. Serum total lipid, cholesterol and uric acid concentrations were significantly lower in birds which had received T2 and T3 (P<0.05. Serum enzymes and electrolytes were not influenced by any dietary treatment except for alanine transaminase (ALT which was significantly lower for the treated groups. Based on presented evidences, it is recommended to substitute 3.0% of corn with green seaweed (U. lactuca.

  19. Cassapro in broiler ration : effect of halquinol Supplementation

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    I.P Kompiang

    1997-10-01

    Full Text Available A trial was conducted to determine the effect of various level of cassapro (fermented cassava and halquinol supplementation on the performance of broiler chickens . Experimental rations were formulated isoprotein and isoenergy with graded level of cassapro (0, 10, 20 and 30% . The 20 and 30% cassapro ration were prepared without and with halquinol supplementation (60 ppm. Each ration was fed to 40 of three day old broilers, divided into 4 cages ( 5 males and 5 females per cage for 4 weeks. Increasing the level of cassapro significantly reduced body weight gain (P < 0.005, increased feed conversion ratio (FCR (P < 0.0005 with no effect on feed intake (P < 0.10 . Halquinol supplementation has no effect on feed intake, but significantly increased body weight gain (P <0.05 and improved the FCR (P < 0.01 . It is concluded that high level of cassapro in the ration will cause poorer performance of the birds, however it can be alleviated by halquinolsupplementation.

  20. Exudate Protein Composition and Meat Tenderness of Broiler Breast Fillets.

    Science.gov (United States)

    Bowker, B; Gamble, G; Zhuang, H

    2016-01-01

    The relationship between meat tenderness and the protein composition of muscle exudates collected from broiler breast fillets deboned at different postmortem times was investigated. A total of 85 broilers were processed and breast fillets from each carcass were deboned at either 2 h (early-deboned, EB) or 24 h (control) postmortem. One fillet per carcass was used for 1 d postmortem meat tenderness measurements and the other fillet was stored at 4°C until 6 d postmortem for the collection of exudate prior to tenderness evaluation. Protein content and composition of muscle exudates were determined by a biuret assay and SDS-PAGE. Fillet pH, color, drip loss, and cook loss were also measured. Early-deboned fillets exhibited greater (P L*a*b*). Control fillets exhibited less drip loss after 6 d of storage (P = 0.005) and less cook loss at 1 and 6 d (P meat due to the combined effects of postmortem deboning time and post-deboning aging. Published by Oxford University Press on behalf of Poultry Science Association 2015. This work is written by (a) US Government employee(s) and is in the public domain in the US.

  1. Skin pigmentation evaluation in broilers fed natural and synthetic pigments.

    Science.gov (United States)

    Castañeda, M P; Hirschler, E M; Sams, A R

    2005-01-01

    Broiler carcass skin color is important in the United States and Mexico. This study evaluated the use of natural and synthetic pigments in broiler diets at commercial levels. Birds were fed natural or synthetic pigments at low or high levels, simulating US and Mexican commercial practices. Skin color was measured during live production (3 to 7 wk of age) and after slaughter and chilling. The natural pigments had consistently greater skin b* values (yellowness) than the synthetic pigments. The high levels produced greater skin b* values than the low levels, regardless of source. The synthetic pigments had a slower increase in skin b* but reached the same level as the natural low by 7 wk. There was no difference in skin a* values (redness) due to pigment source or level or the age of the bird. By 7 wk, all pigment sources approached plateau levels in the blood, but the synthetic pigment diet produced higher blood levels of yellow and red pigments than the natural pigment diets. Processing intensified skin yellowness and reduced skin redness. These data suggest that although synthetic pigments might have been absorbed better than natural ones, natural pigments were more efficient at increasing skin yellowness and there were only small differences between high and low levels for each pigment source. This finding may allow reduction in pigment use and feed cost to achieve the same skin acceptance by the consumer.

  2. Natural zeolites in diet or litter of broilers.

    Science.gov (United States)

    Schneider, A F; Almeida, D S De; Yuri, F M; Zimmermann, O F; Gerber, M W; Gewehr, C E

    2016-04-01

    This study aims to analyse the influence of adding natural zeolites (clinoptilolite) to the diet or litter of broilers and their effects on growth performance, carcass yield and litter quality. Three consecutive flocks of broilers were raised on the same sawdust litter, from d 1 to d 42 of age, and distributed in three treatments (control with no added zeolites, addition of 5 g/kg zeolite to diet and addition of 100 g/kg zeolites to litter). The addition of zeolites to the diet or litter did not affect growth performance or carcass yield. The addition of zeolites to the diet did not influence moisture content of the litter, ammonia volatilisation was reduced only in the first flock and pH of litter was reduced in the second and third flock. However, the addition of zeolites to the litter reduced moisture content, litter pH and ammonia volatilisation in all flocks analysed. The addition of 5 g/kg zeolite to the diet in three consecutive flocks was not effective in maintaining litter quality, whereas the addition of 100 g/kg natural zeolites to sawdust litter reduced litter moisture and ammonia volatilisation in three consecutive flocks raised on the same litter.

  3. Fumaric and sorbic acid as additives in broiler feed.

    Science.gov (United States)

    Pirgozliev, V; Murphy, T C; Owens, B; George, J; McCann, M E E

    2008-06-01

    The aim of the experiment was to study the effect of dietary organic acids, fumaric and sorbic, on nitrogen corrected apparent metabolisable energy (AME(N)), metabolisability of nutrients, endogenous losses and performance on young broiler chickens. A total of 56 male Ross broilers were used in a growing experiment from 14 to 30d age. Seven experimental wheat-based (655g/kg) diets were formulated. The control diet did not contain organic acids. The other six diets were produced with the addition of fumaric or sorbic acids, replacing 0.5% , 1.0% or 1.5% of the wheat. The organic acid supplemented diets contained higher levels of AME(N) compared to the control diet. Overall, birds offered organic acids had lower feed intake. Dietary organic acids did not significantly affect weight gain or feed efficiency, however, birds offered supplemented diets had lower numbers of Lactic acid bacteria and Coliforms in the ileum and caeca. Birds offered organic acids had lower levels of endogenous losses compared to control fed birds. There was a negative relationship between AME(N) of the diets and excreted endogenous losses, measured as sialic acid. It can be concluded that the decrease in secretions from the gastrointestinal tract in the presence of fumaric and sorbic acids may be a mechanism involved in the mode of action of dietary organic acids.

  4. Early feeding to modify digestive enzyme activity in broiler chickens

    Directory of Open Access Journals (Sweden)

    Milagro León T.

    2014-09-01

    Full Text Available Objective. To evaluate the effect on digestive enzyme activity in broiler chickens by providing food in the first 48 hrs. after birth. Materials and methods. After incubating 300 fertile eggs from Hubbard breeding and immediately after hatching, the chicks were randomly assigned to treatments: fasting (from hatching to 48 hrs.; Hydrated Balanced Food (HBF from birth to 48 hrs.; commercial hydrating supplement (CHS from birth to 48 hrs. The diets were provided ad libitum. After 48 hrs. a commercial diet was fed. At birth and at 48 and 72 hrs. of age 30 chicks/treatment were sacrificed to determine the enzyme activity of maltase, sucrase, alkaline phosphatase, phytase, a-amylase, trypsin and lipase in samples of duodenal or pancreatic homogenate. Results. The supply of HBF or CHS during the first 48 hrs. of life increased the activity of maltase, sucrase and phytase in the first 3 days of life, with values between 1.2 and up to 4-fold compared to the control (p<0.05. Chickens that fasted for the first 48 hrs. had higher activity of the pancreatic enzymes a-amylase, trypsin, and lipase at 72 hrs. of life (p<0.05. Conclusions. The food supply in the first 48 hrs. after hatching increases the duodenal enzyme activity in the intestinal brush border during the first 3 days of age in broiler chickens.

  5. Characterization of methicillin-resistant Staphylococcus aureus isolated from healthy turkeys and broilers using DNA microarrays

    Directory of Open Access Journals (Sweden)

    Hosny El-Adawy

    2016-12-01

    Full Text Available Methicillin-resistant Staphylococcus aureus (MRSA is a major human health problem and recently, domestic animals, in particular pigs and poultry are discussed as carriers and possible reservoirs of MRSA. Twenty seven S. aureus isolates from five turkey farms (n=18 and two broiler farms (n=9 were obtained by culturing of choana and skin swabs from apparently healthy birds, identified by Taqman-based real-time duplex nuc-mecA-PCR and characterized by spa typing as well as by a DNA microarray based assay which covered, amongst others, a considerable number of antibiotic resistance genes, species controls and virulence markers. The antimicrobial susceptibility profiles were tested by agar diffusion assays and genotypically confirmed by the microarray. Five different spa types (3 in turkeys and 2 in broilers were detected. The majority of MRSA isolates (24/27 belonged to clonal complex 398-MRSA-V. The most frequently occurring spa types were accordingly t011, t034 and t899. A single CC5-MRSA-III isolated from turkey and CC398-MRSA with an unidentified/truncated SCCmec element in turkey and broiler were additionally detected. The phenotypic antimicrobial resistance profiles of S. aureus isolated from both turkeys and broilers against 14 different antimicrobials showed that all isolates were resistant to ampicillin, cefoxitin, oxacillin, doxycycline and tetracycline. Moreover, all S. aureus isolated from broilers were resistant to erythromycin and azithromycin. All isolates were susceptible to gentamicin, chloramphenicol, sulphonamides and fusidic acid. The resistance rate against ciprofloxacin was 55.6% in broiler isolates and 42.1% in turkey isolates. All tetracycline resistant isolates possessed genes tetK/M. All erythromycin-resistant broiler isolates carried ermA. Only one broiler isolate (11.1% carried genes ermA, ermB and ermC, while 55.6% of turkey isolates possessed ermA and ermB genes.Neither PVL genes (lukF/S-PV, animal-associated leukocidin

  6. Characterization of Methicillin-Resistant Staphylococcus aureus Isolated from Healthy Turkeys and Broilers Using DNA Microarrays.

    Science.gov (United States)

    El-Adawy, Hosny; Ahmed, Marwa; Hotzel, Helmut; Monecke, Stefan; Schulz, Jochen; Hartung, Joerg; Ehricht, Ralf; Neubauer, Heinrich; Hafez, Hafez M

    2016-01-01

    Methicillin-resistant Staphylococcus aureus (MRSA) is a major human health problem and recently, domestic animals are described as carriers and possible reservoirs. Twenty seven S. aureus isolates from five turkey farms (n = 18) and two broiler farms (n = 9) were obtained by culturing of choana and skin swabs from apparently healthy birds, identified by Taqman-based real-time duplex nuc-mecA-PCR and characterized by spa typing as well as by a DNA microarray based assay which covered, amongst others, a considerable number of antibiotic resistance genes, species controls, and virulence markers. The antimicrobial susceptibility profiles were tested by agar diffusion assays and genotypically confirmed by the microarray. Five different spa types (3 in turkeys and 2 in broilers) were detected. The majority of MRSA isolates (24/27) belonged to clonal complex 398-MRSA-V. The most frequently occurring spa types were accordingly t011, t034, and t899. A single CC5-MRSA-III isolated from turkey and CC398-MRSA with an unidentified/truncated SCCmec element in turkey and broiler were additionally detected. The phenotypic antimicrobial resistance profiles of S. aureus isolated from both turkeys and broilers against 14 different antimicrobials showed that all isolates were resistant to ampicillin, cefoxitin, oxacillin, doxycycline, and tetracycline. Moreover, all S. aureus isolated from broilers were resistant to erythromycin and azithromycin. All isolates were susceptible to gentamicin, chloramphenicol, sulphonamides, and fusidic acid. The resistance rate against ciprofloxacin was 55.6% in broiler isolates and 42.1% in turkey isolates. All tetracycline resistant isolates possessed genes tetK/M. All erythromycin-resistant broiler isolates carried ermA. Only one broiler isolate (11.1%) carried genes ermA, ermB, and ermC, while 55.6% of turkey isolates possessed ermA and ermB genes. Neither PVL genes (lukF/S-PV), animal-associated leukocidin (lukM and luk-P83) nor the gene encoding

  7. Differences in egg nutrient availability, development, and nutrient metabolism of broiler and layer embryos.

    Science.gov (United States)

    Nangsuay, A; Molenaar, R; Meijerhof, R; van den Anker, I; Heetkamp, M J W; Kemp, B; van den Brand, H

    2015-03-01

    Selection for production traits of broilers and layers leads to physiological differences, which may already be present during incubation. This study aimed to investigate the influence of strain (broiler vs layer) on egg nutrient availability, embryonic development and nutrient metabolism. A total of 480 eggs with an egg weight range of 62.0 to 64.0 g from Lohmann Brown Lite and Ross 308 breeder flocks of 41 or 42 weeks of age were selected in two batches of 120 eggs per batch per strain. For each batch, 30 eggs per strain were used to determine egg composition, including nutrient and energy content, and 90 eggs per strain were separately incubated in one of two climate respiration chambers at an eggshell temperature of 37.8°C. The results showed that broiler eggs had a higher ratio of yolk: albumen with 2.41 g more yolk and 1.48 g less albumen than layers. The yolk energy content of broiler eggs was 46.32 kJ higher than that of layer eggs, whereas total energy content of broiler eggs was 47.85 kJ higher compared to layer eggs. Yolk-free body mass at incubation day 16 and chick weight and length at hatch were higher in broilers compared to layers. Respiration quotient of broiler embryos was higher than layer embryos during incubation day 8 to incubation day 10. A 0.24 g lower residual yolk at the hatch of broiler embryos than for the layer embryos indicated that broiler embryos used more yolk and had a higher energy utilization and energy deposition in yolk-free body mass. Heat production of broiler embryos was higher than that of layer embryos from incubation day 12 to incubation day 18, but efficiency of converting egg energy used by embryos to form yolk-free body mass was similar. In conclusion, broiler and layer embryos have different embryonic development patterns, which affect energy utilization and embryonic heat production. However, the embryos are equal in efficiency of converting the energy used to yolk-free body mass. © 2015 Poultry Science

  8. The influence of feeding crimped kernel maize silage on broiler production, nutrient digestibility and meat quality.

    Science.gov (United States)

    Ranjitkar, S; Karlsson, A H; Petersen, M A; Bredie, W L P; Petersen, J S; Engberg, R M

    2016-01-01

    Two experiments were carried out in parallel with male Ross 308 broilers over 37 d. An experiment with a total of 736 broilers was performed to study the effect of dietary inclusion of crimped kernel maize silage (CKMS) on broiler production and meat quality. Another study with 32 broilers was carried out from 21 to 25 d to investigate the inclusion of CKMS on nutrient digestibility. In both trials, 4 dietary treatments were used: wheat-based feed (WBF), maize-based feed (MBF), maize-based feed supplemented with 15% CKMS (CKMS-15) and maize-based feed supplemented with 30% CKMS (CKMS-30). Compared with MBF, the dry matter (DM) intakes of broilers receiving CKMS-15 and CKMS-30, respectively, were numerically 7.5 and 6.2% higher and feed conversion ratio 6 and 12% poorer (significant for 30% CKMS), although there were no significant differences in AME content between the three diets. At 37 d, the body weight of birds receiving 15% CKMS was similar to birds fed with MBF. However, the inclusion of 30% CKMS decreased broiler growth. Dietary supplementation with CKMS significantly reduced the apparent digestibility of phosphorus. The fat digestibility was significantly lower for CKMS-30 than for the other three diets. Broiler mortality decreased significantly when CKMS was added to the diet. The consumption of drinking water was significantly lower in all maize-based diets as compared to WBF and was lowest in broilers fed with CKMS-30. An improved litter quality in terms of DM content and a lower frequency of foot pad lesions was observed with broilers supplemented with both dietary levels of CKMS. The addition of CKMS to maize-based diets increased juiciness, tenderness and crumbliness of the meat. In conclusion, the dietary supplementation of 15% CKMS had no negative effect on broiler growth and positively influenced bird welfare in terms of mortality and foot pad health. Therefore, the addition of 15% CKMS to maize-based diets is considered an advantageous feeding

  9. Performance and economic suitability of three fast- growing broiler strains raised under farming condition in Bangladesh

    OpenAIRE

    Hossain, M. A.

    2011-01-01

    The performance and profitability of three commercial broiler strains reared under farming system were investigated in this study. Day-old broiler chicks (n=156) of three different commercial strains (Hubbard classic, Cobb-500 and MPK) were assigned to three treatment groups in a completely randomized block design, each treatment replicated four times, 13 birds per replicate. The birds were reared from d1 to 35 days of age with similar housing, feeding and environmental management condition....

  10. Impacts of stocking density on the performance and welfare of broiler chickens

    Directory of Open Access Journals (Sweden)

    Alaeldein M. Abudabos

    2013-02-01

    Full Text Available The current study was performed to investigate the influence of different stocking density rates on the performance, thermophysiological measurements as well as blood parameters of 0 to 30 d of age female Ross broiler. A total of 96 chicks were randomly distributed in a randomized complete block design among 12 cages. Three stocking density rates were applied; low (28.0 kg/m2, medium (37.0 kg/m2 and high (40.0 kg/m2. Results revealed that cumulative body weight gain (BWG and feed intake (FI were influenced (P<0.01 by the rate of stocking density, while no effect (P>0.05 were observed for broilers mortality-corrected feed conversion ratio (FCR. Higher BWG (P<0.01 and FI (P<0.05 were reported for low and medium density rates broilers in comparison to the high density rate broilers. Overall means of body temperature as well as head, neck, wing, body and shank surface temperatures have displayed (P<0.05 higher values in medium and high density rates broilers compared to the low density rate broilers. Furthermore, increasing the stocking density from 28 to 40 kg/m2 induced a state of hemodilution in higher density rate broilers, which might explain the noticeable decrease in packed cell volume (PCV. Meanwhile, an increase in serum aspartate aminotransferase (AST was observed in the higher density group, which might indicate hepatocellular injures. It can be concluded that increasing the stocking density rate from 28 to 40 kg of BW/m2 had evident impingement effects on the performance of broiler chicken and could jeopardize their welfare.

  11. Immunostimulatory and protective effects of Aloe vera against coccidiosis in industrial broiler chickens.

    Science.gov (United States)

    Akhtar, Masood; Hai, Abdul; Awais, Mian Muhammad; Iqbal, Zafar; Muhammad, Faqir; ul Haq, Ahsan; Anwar, Muhammad Irfan

    2012-05-25

    This paper reports the immunostimulatory and protective effects of Aloe vera extracts (aqueous and ethanolic) against coccidiosis in industrial broiler chickens. The study was divided into two experiments. Experiment-I was conducted for the evaluation of immunostimulatory activity of A. vera and experiment-II demonstrated the protective efficacy of A. vera extracts against coccidiosis in chickens. Results of the experiment-I revealed significantly higher (pcoccidiosis in industrial broiler chickens. Copyright © 2011 Elsevier B.V. All rights reserved.

  12. (-)-Hydroxycitric acid reduced fat deposition via regulating lipid metabolism-related gene expression in broiler chickens.

    Science.gov (United States)

    Han, Jing; Li, Longlong; Wang, Dian; Ma, Haitian

    2016-02-24

    Chicken as a delicious food for a long history, and it is well known that excess fat deposition in broiler chickens will not only induced metabolic diseases, but also lead to adverse effect in the consumer's health. (-)-Hydroxycitric acid (HCA), a major active ingredient of Garcinia Cambogia extracts, had shown to suppress fat accumulation in animals and humans. While, the precise physiological mechanism of HCA has not yet been full clarified, especially its action in broiler chickens. Thus, this study aimed to assess the effect of (-)-HCA on lipid metabolism in broiler chickens. A total of 120 1-day-old broiler chickens were randomly allocated to four groups, with each group was repeated three times with 10 birds. Birds received a commercial diet supplemented with (-)-HCA at 0, 1000, 2000 or 3000 mg/kg, respectively, for a period of 4 weeks ad libitum. Body weight (BW) in the 2000 and 3000 mg/kg (-)-HCA groups was significantly decreased (P Broiler chickens supplmented with 2000 and 3000 mg/kg (-)-HCA had pronouncedly higher hepatic lipase (HL) activity, hepatic glycogen and non-esterified fatty acid (NEFA) contents in liver (P broiler chickens supplemented with 3000 mg/kg (-)-HCA. No differences was observed on carnitine palmitoyl transferase-I(CPT-I), while peroxisome proliferators-activated receptor α (PPARα) mRNA level (P broiler chickens supplemented with 2000 and 3000 mg/kg (-)-HCA. Supplemental (-)-HCA inhibited lipogenesis by inhibiting ACLY, SREBP-1c and FAS expression, and accelerated lipolysis through enhancing HL activity and PPARα expression, which eventually led to the reduced abdominal fat deposition in broiler chickens. Graphical abstract Mechanism of (-)-HCA effect on hepatic lipids metabolism.

  13. Exposure assessment to cephalosporin resistant E. coli through consumption of broiler meat

    OpenAIRE

    Federal Agency for the Safety of the Food Chain

    2011-01-01

    The acquired resistance of E. coli to cephalosporin antimicrobial drugs is becoming a major issue in intensive broiler farming. In Belgium, about 36% of the E. coli strains isolated from live poultry are resistant to cephalosporin antimicrobial drugs while 60% of the broilers are carrier of these cefalosporin resistant E. coli. The risk of consuming chicken meat contaminated with cephalosporin resistant E. coli consists mainly of the possible transfer of resistance genes to other, potenti...

  14. THE STATISTIC ANALYSIS OF THREE MATHEMATICAL MODELS REFFERING TO THE EVOLUTION OF BROILERS CORPORAL MASS

    Directory of Open Access Journals (Sweden)

    ANDREEA POPESCU

    2008-05-01

    Full Text Available The evolution of the broilers corporal mass has been studied depending on the controllable variables: L(lysine, M(metionine+cystine, obtaining the mathematical models 1 G , 2 G , 3 G .This work analyses statistically if the values of these models significantly differ from the control lot 0 G .(NRC 1994.Calculating the reports of correlation we specify which model is considered decisional in broilers nutrition.

  15. Haemato-biochemical and pathological studies on aflatoxicosis and treatment of broiler chicks in Egypt

    OpenAIRE

    Mohamed A. Hashem; Mohamed H. Mohamed

    2009-01-01

    The aim of this study was to evaluate the prophylactic efficacy of protexin (probiotic), inulin (prebiotic) and both (synbiotics), when included in a diet containing aflatoxins and fed to growing broiler chicks (from 1 to 21 days old). The criteria of the evaluation included body weight gain, haematological profile and biochemistry, in addition to associated lesions in chicks. A total of 160 Hubbard male day-old broiler chicks were separated into eight groups that all received different diets...

  16. Performance of the Broiler Duck Males after Application of Two Different Probiotic Preparations

    OpenAIRE

    Ján Weis; Beata Baraňska; Gabriel Pál; Cyril Hrnčár

    2010-01-01

    This study was conducted to investigate the effect of supplementation of the probiotic preparations with different probiotic strain on the basic fattening parameters of broiler duck males. The experiment was carried out in halfoperation conditions experimental base of Department of Poultry Science and Small Animal Husbandry of Slovak University of Agriculture in Nitra in three-floor cage technology. Totally 45 one day broiler duck males of hybrid PKB divided into three groups: control group -...

  17. EFFECT OF PROBIOTIC PREPARATES WITH DIFFERENT STRAIN ON MEAT PRODUCTION OF BROILER DUCKS

    OpenAIRE

    J. WEIS; C. HRNČÁR; S. MINDEK

    2008-01-01

    This study was conducted to investigate the effect of supplementation of the probiotic preparates with different probiotic strain on the meat production of broiler duck females. The experiment realised in half-operation conditions experimental base of Department of Poultry Science and Small Animal Husbandry of Slovak University of Agriculture in Nitra in three-floor cage technology. Totally 45 one day broiler duck females hybrid PKR divided into three groups: control group - without addition ...

  18. Use of fly screens to reduce Campylobacter spp. introduction in broiler houses

    DEFF Research Database (Denmark)

    Hald, Birthe; Sommer, Helle Mølgaard; Skovgaard, Henrik

    2007-01-01

    Fly screens that prevented influx of flies in 20 broiler houses during the summer of 2006 in Denmark caused a decrease in Campylobacter spp.–positive flocks from 51.4% in control houses to 15.4% in case houses. A proportional reduction in the incidence of chicken-borne campylobacteriosis can...... be expected by comprehensive intervention against flies in broiler production houses....

  19. The relationship between measures of fear of humans and lameness in broiler chicken flocks.

    Science.gov (United States)

    Vasdal, G; Moe, R O; de Jong, I C; Granquist, E G

    2017-07-07

    In the Welfare Quality® assessment protocol for broilers, the touch test is included to assess the human-animal relationship in the flock. The test is designed to measure the animals' fear of humans, assuming that broilers will withdraw from the observer if they are fearful. However, many broilers close to slaughter age have impaired walking ability, and the results from the touch test may thus be biased by lameness and poor leg health. As the touch test is currently being used in several countries to assess human-animal relationship in broilers, there is an urgent need to examine this potential relationship for a further validation of the test. In the present study, fear of humans was assessed in 50 randomly selected Norwegian broiler flocks, using the touch test as described in the Welfare Quality® protocol for ty broilers. Leg health was assessed by examining the gait of 150 random birds in each of the flocks, using a six-point gait score scale from 0 to 5. The coefficient for the relationship between touch test score and gait score was 0.034 (P<0.001), indicating that the animals express less fear as assessed by the touch test when the gait scores increase. This implies that the touch test may be confounded by impaired walking ability and therefore might be a suboptimal method of assessing fear of humans and human-animal relationship in broilers. In conclusion, the results from this study suggests that the touch test must be further validated in broilers and perhaps be replaced with a fear test that doesn't rely on walking ability.

  20. Performances and haematological profile of broilers fed fermented dried cassava (Manihot esculenta Crantz).

    Science.gov (United States)

    Sugiharto, Sugiharto; Yudiarti, Turrini; Isroli, Isroli

    2016-10-01

    The effect of feeding fermented dried cassava (gathot) on the performances and haematological profile of broilers was investigated. There were four dietary treatments arranged in a completely randomized design, i.e. control diet and diets containing 25, 50 or 100 g/kg gathot. The birds were provided with the treatment diets ad libitum from 8 to 35 days of age. Body weight, feed intake and feed conversion ratio (FCR) were determined weekly. At day 32, the birds were blood sampled, sacrificed and immediately the internal organs and abdominal fat were removed and weighed. Feeding gathot at various levels did not affect (P > 0.05) the growth and FCR, but tended (P = 0.09) to reduce the feed cost per kilogramme live weight gain of broilers. The dietary treatments did not cause toxicological effect on broilers, indicated by the values of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) that were not different from those in the control diet. Dietary inclusion of gathot lowered heterophils to lymphocytes ratio (H/L ratio) (P < 0.05) and albumin to globulin ratio (A/G ratio) (P = 0.14) of broilers as compared to the control diet. Total triglyceride was lower (P < 0.05) in the serum of broilers fed diets containing 5 and 10 % of gathot, when compared with that in the control diet. The treatments resulted in reduced abdominal fat deposition in broilers. In conclusion, dietary inclusion of gathot at up to 10 % had no negative impact on the growth performance of broilers. Feeding gathot has potential to improve the health and physiological stress responses as well as reduce body fat deposition in broilers.

  1. Noodle Waste As Substitute For Yellow Corn in Broiler Diet and Its Effect on Carcass Quality

    OpenAIRE

    Eko Widodo; Osfar Sjofjan; Akhmad Zaenal Wijaya

    2012-01-01

    Experiment aimed to investigate the effect of noodle waste as corn substitute in broiler diet on carcass quality including carcass weight, carcass percentage, abdominal fat percentage, breast meat depositition and cholesterol concentration. The materials used for this experiment were 100 one-day-old Lohmann broiler chicks. Feedstuffs used consisted of concentrate, rice polishing and yellow corn formulated to meet nutrient requirements during starter and finisher periods and given ad libitum. ...

  2. Influence of additional level of probiotics on intestinal microbiota in broiler chickens

    OpenAIRE

    Lavinia Ştef

    2017-01-01

    The digestive tract of broiler chickens contains a highly complex microbiota, generally consisting of body beneficial bacteria and, in some cases, of pathogen bacteria. To reduce the quantity of pathogen bacteria, the structure of this microbiota can be changed by using some feed additives, such as probiotics. The purpose of the experiment was to establish the influence of the additional level of probiotics on the intestinal microbiota in broiler chickens. Probiotics administration (Lactobaci...

  3. Spondylitis in broiler breeder farms in West-Azerbaijan province, Iran: Clinical Report

    OpenAIRE

    Talebi, Alireza; Taifebagherlu, Jafar; Sharifi, Arian; Delkhosh-Kasmaie, Fatemeh

    2016-01-01

    Spondylitis is a reemerging epidemic spinal infection in male broiler chickens (5 to 7 weeks of age) as well as broiler breeder roosters (15 to 18 weeks of age). Among various causative agents, Enterococcus species and in particular E. cecorum, a gram-positive bacterium as a gastrointestinal flora of birds, have mostly been isolated. On late September 2015, a number of 10 weeks old roosters with characteristic clinical signs of lameness and hock-sitting posture were autopsied. During thorough...

  4. Human-Friendly Light-Emitting Diode Source Stimulates Broiler Growth.

    Science.gov (United States)

    Pan, Jinming; Yang, Yefeng; Yang, Bo; Dai, Wenhua; Yu, Yonghua

    2015-01-01

    Previous study and our laboratory have reported that short-wavelength (blue and green) light and combination stimulate broiler growth. However, short-wavelength stimuli could have negative effects on poultry husbandry workers. The present study was conducted to evaluate the effects of human-friendly yellow LED light, which is acceptable to humans and close to green light, on broiler growth. We also aimed to investigate the potential quantitative relationship between the wavelengths of light used for artificial illumination and growth parameters in broilers. After hatching, 360 female chicks ("Meihuang" were evenly divided into six lighting treatment groups: white LED strips (400-700 nm, WL); red LED strips (620 nm, RL); yellow LED strips (580 nm, YL); green LED strips (514 nm, GL); blue LED strips (455 nm, BL); and fluorescent strips (400-700 nm, FL). From 30 to 72 days of age, broilers reared under YL and GL were heavier than broilers treated with FL (P 0.05). Moreover, YL significantly improved feeding efficiency when compared with GL and BL at 45 and 60 days of age (P light spectra on broiler growth and a quantitative relationship between LED light spectra (455 to 620 nm) and the live body weights of broilers. The wavelength of light (455 to 620 nm) was found to be negatively related (R2 = 0.876) to live body weight at an early stage of development, whereas the wavelength of light (455 to 620 nm) was found to be positively correlated with live body weight (R2 = 0.925) in older chickens. Our results demonstrated that human-friendly yellow LED light (YL), which is friendly to the human, can be applied to the broilers production.

  5. Pathology of heart, lung, liver and kidney in broilers under chronic heat stress

    Directory of Open Access Journals (Sweden)

    Worapol Aengwanich

    2005-05-01

    Full Text Available The purpose of this experiment was to investigate pathological changes in broilers under chronic heat stress. Fifteen birds (n = 15, twenty-eight days old were kept at 33 + 1oC environmental temperature for 21 days. While broilers were maintained in environmental temperature at 33 + 1 oC, body temperature, respiratory rate and urine excretion rose. Macroscopic and microscopic lesions of heart, lung, liver and kidney were examined. Right atrium hypertrophy with excessive blood accumulation, heart enlargement and right ventricular hypertrophy were observed in 12 out of 15 broilers (80%. Congestion, edema and hyperemia in lung were present in all broilers. Yellow and pale livers were observed in 4 out of 15 broilers (26.67%. Kidneys were highly affected i.e. generalized edema and hemorrhage in subrenal capsule. Under microscopic examination of heart, massive myofibrillar degeneration with hemorrhage, general fatty degeneration /or/ vacuolation of myofibers and diffused myocarditis containing organisms were found in some areas. The principal histopathologic lesions in the lung were related to vein and arteriole massive congestion. Massive hemorrhage was largely observed in parabronchus and alveoli of all broilers. Liver cells showed “fatty degeneration” with dilation of sinusoid of all broilers. Besides, necrosis with heterophils and lymphocytes was observed in some parts of the liver, especially in the centritubular region. In the kidney, leukocytes such as heterophils accumulated in many inflammatory areas. Fatty degeneration was observed in renal tubular epithelia of all broilers. Glomeruli were damaged. A space between renal papillae increased and accumulated water. Moreover, ureters in 9 out of 15 (60% birds showed sac-like expansion “ureteral pseudobladder”. These sacs were filled with urine and similar to bladder in mammals.

  6. Effects of color of light on preferences, performance, and welfare in broilers

    DEFF Research Database (Denmark)

    Riber, Anja Brinch

    2015-01-01

    ) the preference for LED color temperature and effects on behavior, and 2) effects of LED color temperature on performance and welfare of male broilers (Ross 308). Two color temperatures were investigated: neutral-white (4,100 K) and cold-white (6,065 K). First, 6 groups of 6-day-old chicks were housed in pens...... color temperatures examined, the most suitable for use in commercial broiler houses is 6,065 K....

  7. Effect of dietary phytoestrogens, feed restriction, and their interaction on reproductive status of broiler pullets

    Directory of Open Access Journals (Sweden)

    A. D. Madnurkar

    2014-12-01

    Full Text Available Background and Aim: A major problem faced by the broiler industry around the world is a lowered reproductive fitness of breeding hens which can cause major economic impact in terms of lowered hatchable egg production. In broiler breeders, a lot of the selection pressure has been exerted on growth, conformation and feed efficiency as a result broiler breeder hens are prone to several metabolic disorders and reproductive anomalies. Present study was conducted to assess the effect of phytoestrogen, feed restrictions (75% of their control ad libitum, and their interaction on reproductive parameters in high and low body weight broiler breeder hens. Materials and Methods: One hundred twenty-eight healthy female broiler breeder pullets were divided randomly into eight groups from the same hatch and strain. They were transferred to individual laying cages. Birds received ad libitum drinking water and feeding, depend on divided group i.e., ad libitum or restricted feeding (75% of control ad libitum counterpart separately for heavy or low body weight till first egg laid in respective groups. Experimental diets made with practical feed ingredients as per institution recommendation (broiler breeder ration as per experimental planning. Results: Phytoestrogen significantly (p<0.05 improved egg number and size in broiler breeding hens by checking reproductive anomalies (internal laying, double hierarchy, and follicular atresia, restructuring ovarian, and oviductal functional development besides improved physiological maturation of infundibulum. Unlike phytoestrogen, feed restriction as expected delayed the age of sexual maturity but helped in a reduction of ovary weight, number of yellow follicle, number of atretic yellow follicle, incidence of double hierarchy, and internal ovulation. Interaction between phytoestrogen and feed restriction did not give any additional remunerative advantage. Conclusions: It is concluded that phytoestrogens and limited feed

  8. Influence of Pasture Rearing on the Cecal Bacterial Microbiota in Broiler Chickens

    OpenAIRE

    Čermák L.; Skřivanová E.

    2016-01-01

    Differences in quantity of cecal microbiota in broiler chickens from conventional and pasture rearing were investigated by cultivation. Rearing on pasture brings stress reduction and increases comfort and bird welfare, which leads to products with better taste and flavour compared to conventionally produced broiler chickens. A difference in cecal settlement of general anaerobes, coliforms, lactic acid bacteria, and campylobacters and salmonellas in the two different rearing systems was addres...

  9. Spread of avian pathogenic Escherichia coli ST117 O78:H4 in Nordic broiler production

    DEFF Research Database (Denmark)

    Ronco, Troels; Stegger, Marc; Olsen, Rikke Heidemann

    2017-01-01

    Escherichia coli infections known as colibacillosis constitute a considerable challenge to poultry farmers worldwide, in terms of decreased animal welfare and production economy. Colibacillosis is caused by avian pathogenic E. coli (APEC). APEC strains are extraintestinal pathogenic E. coli and h...... diseased broilers and breeders. The data indicate that the closely related ST117 O78:H4 strains have been transferred vertically through the broiler breeding pyramid into distantly located farms across the Nordic countries....

  10. Kinematic analysis quantifies gait abnormalities associated with lameness in broiler chickens and identifies evolutionary gait differences.

    Directory of Open Access Journals (Sweden)

    Gina Caplen

    Full Text Available This is the first time that gait characteristics of broiler (meat chickens have been compared with their progenitor, jungle fowl, and the first kinematic study to report a link between broiler gait parameters and defined lameness scores. A commercial motion-capturing system recorded three-dimensional temporospatial information during walking. The hypothesis was that the gait characteristics of non-lame broilers (n = 10 would be intermediate to those of lame broilers (n = 12 and jungle fowl (n = 10, tested at two ages: immature and adult. Data analysed using multi-level models, to define an extensive range of baseline gait parameters, revealed inter-group similarities and differences. Natural selection is likely to have made jungle fowl walking gait highly efficient. Modern broiler chickens possess an unbalanced body conformation due to intense genetic selection for additional breast muscle (pectoral hypertrophy and whole body mass. Together with rapid growth, this promotes compensatory gait adaptations to minimise energy expenditure and triggers high lameness prevalence within commercial flocks; lameness creating further disruption to the gait cycle and being an important welfare issue. Clear differences were observed between the two lines (short stance phase, little double-support, low leg lift, and little back displacement in adult jungle fowl; much double-support, high leg lift, and substantial vertical back movement in sound broilers presumably related to mass and body conformation. Similarities included stride length and duration. Additional modifications were also identified in lame broilers (short stride length and duration, substantial lateral back movement, reduced velocity presumably linked to musculo-skeletal abnormalities. Reduced walking velocity suggests an attempt to minimise skeletal stress and/or discomfort, while a shorter stride length and time, together with longer stance and double-support phases, are associated

  11. Profil Perlemakan Darah Ayam Broiler yang Diberi Pakan Tepung Daun Kayambang (Salvinia Molesta)

    OpenAIRE

    Meliandasari, Destriana; DWILOKA, BAMBANG; SUPRIJATNA, EDJENG

    2014-01-01

    The aim of this study was to determine the effect of alternative local feed ingredients kayambang leaf meal (Salvinia molesta) as a fibrous protein source in broiler diet composition on the production performance and blood lipid. The study used one hundred broiler chickens at 15 days old unsex with average weight 500 ± 6,99 g. The study used experimental completely randomized design with four treatments and five replications. Ration treatment was arranged for starter and finisher periods incl...

  12. Pengaruh Taraf Penyemprotan Air dan Lama Penyimpanan Terhadap Daya Tahan Ransum Broiler Finisher Berbentuk Pellet

    OpenAIRE

    Yuli Retnani; Edo Duanda Putra; Lidy Herawati

    2011-01-01

    The effect of different water spraying level and storage period on endurance of pellet broiler finisher ABSTRACT. The storage is very important in a farm management, because this activity can take care of feed stability which enough and preferable to be consumed by animal and also strive for animal food availability continuously. The purpose of this research is to know the water spraying level and variation of storage period against the endurance of pellet broiler finisher ration. This re...

  13. A questionnaire-based, retrospective field study of persistence of Salmonella Enteritidis and Salmonella Typhimurium in Danish broiler houses

    DEFF Research Database (Denmark)

    Gradel, K.O.; Rattenborg, Erik

    2003-01-01

    A questionnaire-based, retrospective field study was conducted in 78 Danish broiler houses (analytical units) on 42 farms. In spring 1997, all these broiler houses had been infected with Salmonella Enteritidis, phage type 8, and/or Salmonella Typhimurium, definitive-type 66, by day-old chicks del...... soap and water for washing hands in the anteroom, hygiene barriers when removing dead broilers, gravel alongside the broiler house, systematic checks of indoor rodent-bait depots, and combined surface and pulse-fogging disinfection....

  14. Effect strooiselmateriaal, strooiselhoeveelheid, opvangschoteltjes en waterdruk op resultaten vleeskuikens = Influence of bedding material, bedding amount, drip cup and reduced water pressure on broiler performance

    NARCIS (Netherlands)

    Harn, van J.; Jong, de I.C.; Veldkamp, T.

    2009-01-01

    Four different bedding materials for broiler houses were compared: white wood shavings, chopped wheat straw, ground rapeseed straw and silage maize. Performance results, carcass yields, litter quality, broiler quality and gait score were measured.

  15. Influence of genetic strain and season on back scratch lesions in broilers

    Directory of Open Access Journals (Sweden)

    M Pilecco

    2011-12-01

    Full Text Available This study aimed at evaluating the influence of genetic strain, sex, and season on the incidence of back scratches during the rearing period. Male and female broilers of two genetic strains reared during the hot or cold season were evaluated. This meta-analysis included 894 samplings in 351 broiler houses of contracted farms located in the state of Mato Grosso do Sul, Brazil, in 2010. Broilers of all ages (1 to 43 days were sampled, capturing 2% of the birds in the house at each sampling. Each flock was evaluated twice, in 21-day intervals. Broilers were reared as single-sex flocks; there were no straight-run flocks. Scratch lesions were classified as present or absent. Strain A broilers presented lower scratch rates (p < 0.05 than strain B birds. During the starter period (1 a 21 days, males presented higher scratch rates (p < 0.05 than females, and the incidence of these lesions was lower during the hot season compared with the cold season. It was concluded that different management practices can be adopted to minimize back scratches in broilers of different sexes and strains during hot and cold seasons, such as reducing weight control frequency and the period of chick containment in brooder circles.

  16. Evidence of broiler meat contamination with post-disinfection strains of Campylobacter jejuni from slaughterhouse.

    Science.gov (United States)

    Kudirkienė, Eglė; Bunevičienė, Jurgita; Brøndsted, Lone; Ingmer, Hanne; Olsen, John Elmerdahl; Malakauskas, Mindaugas

    2011-03-01

    While cross-contamination from equipment and scalding water containing Campylobacter jejuni is considered the main route of broiler carcass contamination during slaughtering, alternative sources of C. jejuni may have been overlooked because only a limited number of studies focus on sampling of one broiler flock along the entire food chain and not many include the slaughterhouse environment. In the present study we have traced the changes of C. jejuni genotypes within one broiler flock from the beginning of rearing to the final product at the slaughterhouse with the aim to evaluate the dynamics and possible sources of carcass contamination with C. jejuni. Genotyping of 345 isolates of C. jejuni by flaA-RFLP revealed ten different flaA genotypes of C. jejuni along the broiler meat production chain. Broiler fillets were mainly contaminated with flaA genotypes found on the surfaces of slaughterhouse equipment and in the scalding water after cleaning and disinfection. Finally, it was clearly demonstrated that C. jejuni isolates remaining in the slaughterhouse environment after disinfection is a potential source of broiler meat contamination. Thus, identification of the mechanisms that allow such strains to persist in the slaughterhouse and survive cleaning is important for the establishment of future practices that will ensure sufficient reduction of C. jejuni in the slaughterhouse environment. Copyright © 2010 Elsevier B.V. All rights reserved.

  17. The effect of dietary phytase on broiler performance and digestive, bone, and blood biochemistry characteristics

    Directory of Open Access Journals (Sweden)

    JPL de Sousa

    2015-03-01

    Full Text Available The dietary inclusion of phytase increases nutrient and energy bioavailability for broilers. The effect of phytase increases nutrients and energy bioavailability for either the objective of this experiment was to evaluate the influence of nutrient and energy reduction in diets supplemented with phytase on the performance, gastrointestinal pH, organ and bone composition, and blood biochemistry of broilers between eight and 21 days of age. In the study, 1.120 male Cobb 500(r broilers, with 161±1g average weight, were used. At eight days of age, birds were distributed according to a completely randomized experimental design with seven treatments in a 3x2+1 factorial arrangement with eight replicates of 20 broiler each. Treatments corresponded to reduction of calcium (Ca and phosphorus (P, amino acids and energy, or reduction of Ca, P, amino acids and energy; supplementation or not of phytase; and a positive control treatment. Broiler fed the diet with reduced Ca and P levels and phytase supplementation presented the best performance of all groups. The diet with reduced amino acid and energy levels and phytase addition reduced gizzard and proventriculus pH. Dietary Ca and P reduction increased relative liver and heart weights, as well as albumin blood levels. The bones of broilers fed phytase-supplemented diets presented higher ash content.

  18. Effect of sulphachloropyrazine on antioxidative systems in blood and liver of broilers

    Directory of Open Access Journals (Sweden)

    Ljiljana M. Kostadinović

    2011-01-01

    Full Text Available This report describes the effects of therapeutic doses of coccidiocid sulphachloropyrazine on enzymatic and non-enzymatic antioxidative systems in haemolysed blood and liver homogenate from broilers (glutathione, glutathione-reductase, glutathione-peroxidase, peroxidase, superoxide-dismutase, xantine-oxidase and lipid peroxidation. The in vivo investigation was carried out on 120 heavy-line broilers (Arbor acres of both sexes. One-day-old broilers were randomly distributed into 2 groups, each numbering 60 individuals of both sexes: Group 1 - control group; Group 2 - group of broilers inoculated with laboratory derived coccidia species on the 21st day-of-age. When symptoms of coccidiosis appeared (30th day-of-age, blood sampling and decapitation of 20 chickens were carried out (Group 2a. The remaining broilers were treated with therapeutic doses of sulphachloropyrazine (60 ppm. Decapitation of 20 chickens was carried out after the therapy was concluded (38th day-of-age – Group 2b. Infection of broilers with coccidia intensified free radical processing in haemolysed blood and liver homogenate. This was evident from the increased levels of lipid peroxidation and the catalytic activity of almost all examined enzymes (SOD, GSHPx and Px. Therapeutic doses of sulphachloropyrazine inhibited free-radical activity induced by disease and establishing of physiological values of lipid peroxidation and catalase activity of examined enzymes.

  19. The effect of marination on lactic acid bacteria communities in raw broiler fillet strips

    Science.gov (United States)

    Nieminen, T. T.; Välitalo, H.; Säde, E.; Paloranta, A.; Koskinen, K.; Björkroth, J.

    2012-01-01

    Marination with marinade containing salt, sugar, and acetic acid is commonly used in Finland to enhance the value of raw broiler meat. In this study, we investigated the effect of marination, marinade components and storage time on composition of bacterial communities in modified atmosphere-packaged (MAP) broiler fillet strips. The communities were characterized using two culture-independent methods: 16S rRNA gene fragment sequencing and terminal restriction fragment length polymorphism. In unmarinated broiler fillet strips, Lactococcus spp. and Carnobacterium spp. predominated at the early storage phase but were partially replaced by Lactobacillus spp. and Leuconostoc spp. when the chilled storage time was extended. In the marinated fillet strips, Lactobacillus spp. and Leuconostoc spp. predominated independent from the storage time. By mixing the different marinade components with broiler meat, we showed that marination changed the community composition and favored Leuconostoc spp. and Lactobacillus spp. by the combined effect of carbohydrates and acetic acid in marinade. Marination increased the maximum level of lactic acid bacteria in broiler meat and enhanced CO2 production and acidification of meat during the chilled storage. Accumulation of CO2 in package head-space due to the enhanced growth of Leuconostoc spp. in marinated meat may lead to bulging of packages, which is a spoilage defect frequently associated with marinated and MAP raw broiler preparations in Finland. PMID:23087685

  20. Impact of aflatoxin B1 on the pharmacokinetic disposition of enrofloxacin in broiler chickens.

    Science.gov (United States)

    Kalpana, Starling; Srinivasa Rao, G; Malik, Jitendra K

    2015-09-01

    The potential impact of subchronic exposure of aflatoxin B1 was investigated on the pharmacokinetic disposition of enrofloxacin in broiler chickens. Broiler chickens given either normal or aflatoxin B1 (750μg/kg diet) supplemented diet for 6 weeks received a single oral dose of enrofloxacin (10mg/kg body wt). Blood samples were drawn from the brachial vein at predetermined time intervals after drug administration. Enrofloxacin plasma concentrations analyzed by RP-HPLC were significantly lower in aflatoxin B1-exposed broiler chickens at 0.167, 0.5 and 1.0h after drug administration. In aflatoxin B1-exposed broiler chickens, the absorption rate constant (ka) of enrofloxacin (0.20±0.05h(-1)) was significantly decreased as compared to the unexposed birds (0.98±0.31h(-1)). The values of [Formula: see text] , tmax and AUC0-∞ of enrofloxacin were nonsignificantly increased by 17%, 26% and 17% in aflatoxin-exposed broiler chickens, respectively. Subchronic aflatoxin B1 exposure markedly decreased the initial absorption of enrofloxacin without significantly influencing other pharmacokinetic parameters in broiler chickens. Copyright © 2015 Elsevier B.V. All rights reserved.

  1. Evaluation of Yucca schidigera extract as feed additive on performance of broiler chicks in winter season.

    Science.gov (United States)

    Sahoo, Sarada Prasanna; Kaur, Daljeet; Sethi, A P S; Sharma, A; Chandra, M

    2015-04-01

    Yucca schidigera extract has been successfully used as feed additives in the poultry industry. It enhances the growth and productivity in broiler production. Hence, the present study was designed to analyze the effect of Y. schidigera extract in growth, carcass quality and behavior along with its economical utility in broiler rearing. Total, 120 numbers of day-old broiler chicks of equal sex ratio were randomly divided into Yucca supplemented treatment and control group, each having 60 birds in three replications of 20 numbers. The feeding management and rearing conditions were similar for all the groups as per the standard except the Yucca supplementation in the treatment group @ 125 mg/kg of feed. The parameters with respect to growth, carcass, behavior, and litter content were recorded as per standard procedures. The Yucca supplementation can effectively enhance growth of 173 g in 6(th) week by utilizing lesser feed intake than control group, which ultimately proves better feed conversion rate, protein efficiency ratio, and energy efficiency ratio in broiler production. Eviscerated weight of 58.50% for the treatment group was significantly higher (pbroiler's growth performance, efficiency to utilize feed, protein and energy, and survivability. Hence, use of Yucca powder in broiler ration could be beneficial to maintain the litter quality, which directly enhances the productivity in broiler production without any adverse effect.

  2. Distribution and Genetic Profiles of Campylobacter in Commercial Broiler Production from Breeder to Slaughter in Thailand

    Science.gov (United States)

    Prachantasena, Sakaoporn; Charununtakorn, Petcharatt; Muangnoicharoen, Suthida; Hankla, Luck; Techawal, Natthaporn; Chaveerach, Prapansak; Tuitemwong, Pravate; Chokesajjawatee, Nipa; Williams, Nicola; Humphrey, Tom; Luangtongkum, Taradon

    2016-01-01

    Poultry and poultry products are commonly considered as the major vehicle of Campylobacter infection in humans worldwide. To reduce the number of human cases, the epidemiology of Campylobacter in poultry must be better understood. Therefore, the objective of the present study was to determine the distribution and genetic relatedness of Campylobacter in the Thai chicken production industry. During June to October 2012, entire broiler production processes (i.e., breeder flock, hatchery, broiler farm and slaughterhouse) of five broiler production chains were investigated chronologically. Representative isolates of C. jejuni from each production stage were characterized by flaA SVR sequencing and multilocus sequence typing (MLST). Amongst 311 selected isolates, 29 flaA SVR alleles and 17 sequence types (STs) were identified. The common clonal complexes (CCs) found in this study were CC-45, CC-353, CC-354 and CC-574. C. jejuni isolated from breeders were distantly related to those isolated from broilers and chicken carcasses, while C. jejuni isolates from the slaughterhouse environment and meat products were similar to those isolated from broiler flocks. Genotypic identification of C. jejuni in slaughterhouses indicated that broilers were the main source of Campylobacter contamination of chicken meat during processing. To effectively reduce Campylobacter in poultry meat products, control and prevention strategies should be aimed at both farm and slaughterhouse levels. PMID:26886590

  3. Does low-protein diet improve broiler performance under heat stress conditions?

    Directory of Open Access Journals (Sweden)

    RL Furlan

    2004-06-01

    Full Text Available Nutrition for broilers under high temperatures is extremely important for brazilian broiler chicken industry because the amounts of consumed nutrients and environmental temperature have great effects on bird performance and carcass quality. Among diet nutrients, protein has the highest heat increment; thus, during many years, diets with low protein level were recommended in order to reduce heat production in broiler chickens under heat stress. However, reports have shown that low-protein diets have negative effects on broiler performance when environmental temperature is high, because during heat stress, low food intake associated to a low diet protein induce amino acid deficiencies. Other studies have shown that broilers fed low-protein diets increase their energy requirement for maintenance with higher heat production. Thus, with the growth of broiler industry in tropical areas more challenges need to be faced by the farmers. So, both the ambient and nutritional conditions ought to be well managed to avoid negative effects on poultry production once they can affect the metabolism (body heat production under low temperature and body heat dissipation under high temperature with consequence on poultry performance (meat and eggs.

  4. Phylogenetic Group of Escherichia coli Isolates from Broilers in Brazilian Poultry Slaughterhouse

    Science.gov (United States)

    Coura, Fernanda M.; Diniz, Soraia A.; Silva, Marcos X.; Arcebismo, Thiago L. M.; Minharro, Silvia; Feitosa, Adriana C. F.; Lage, Andrey P.; Knöbl, Terezinha; Mussi, Jamili Maria Suhet

    2017-01-01

    The aim of the study was to determine the phylogenetic groups of E. coli strains isolated from seemingly healthy broiler and broiler condemned suspected of colibacillosis in a Brazilian slaughterhouse. Samples from respiratory tract and edible giblets (liver and heart) of broilers with and without macroscopic lesions of colibacillosis were collected at slaughter. There were 84 strains isolated from broilers condemned of which 11 were obtained from swabs of the heart, 7 from the liver, and 66 from the respiratory tract. Of the 53 E. coli strains isolated from broilers not condemned, 5 were isolated from the heart, 4 from the liver, and 44 from the respiratory tract. E coli strains were tested via PCR for phylogenetic groups A, B1, B2, C, D, E, and F. Phylogroups A and B1 were the most common phylogroups of E. coli obtained from healthy and sick-appearing broiler carcasses. The results of the study showed that phylogroups B2 and E were associated with the heart samples and phylogroup A was associated with respiratory tract samples, phylogroup B1 with not condemned carcass, and phylogroup D with liver samples. PMID:29130064

  5. Genomic characterization of a broiler reovirus field strain detected in Pennsylvania.

    Science.gov (United States)

    Tang, Yi; Lu, Huaguang

    2015-04-01

    Avian reovirus (ARV) infections have been increasingly diagnosed in Pennsylvania (PA) from 2011 to the present time. A field ARV strain (Reo/PA/Broiler/05682/12) isolated from sick broilers suffered from severe arthritis/tenosynovitis of a PA broiler flock was conducted full genome sequence studies using RT-PCR and RACE techniques. The complete genome of the PA broiler ARV field strain was 23,494bp in length with an approximately 50% G+C content and 10 dsRNA segments encoding 12 viral proteins. The 10 genomic segments were ranged from 1192bp (S4) to 3958bp (L1) in length, which were almost identical to those of published reference strains. The amino acid (aa) alignments of the putative proteins encoded by the ORF in each segment revealed a high similarity to the counterpart proteins encoded by other avian orthoreoviruses in the Orthoreovirus genus, particularly with the reference strain AVS-B (89.4-98.9%). The phylogenetic analysis of the nucleotide sequences of all 10 genome segments of the PA broiler ARV revealed that a moderate to significant nucleotide sequence divergence from sequences of cognate genome segments of reference ARV S1133 and 138 strains. These genomic data demonstrate that this PA broiler ARV field strain is a unique tenosynovitis ARV and is different from the traditional ARV vaccine strains. Published by Elsevier B.V.

  6. Growth Performance and Meat Quality of Broiler Chickens Supplemented with in Drinking Water

    Directory of Open Access Journals (Sweden)

    Xiaolu Liu

    2012-05-01

    Full Text Available A feeding trial was conducted to investigate effects of Bacillus licheniformis on growth performance and meat quality of broilers. Nine hundred one-d-old broiler chicks were randomly assigned to 3 experimental groups with three replicate pens of 100 broiler chicks. Three treatments were i control, ii basal diets supplemented with 1 ml of B. licheniformis for each in feed water per day iii basal diets supplemented with 2 ml of B. licheniformis per chick in feed water per day. The supplementation of B. licheniformis significantly increased body weight in grower chickens (p<0.05, and significantly improved the feed conversion in 3 to 6 and 0 to 6 wk feeding period compared with the control group (p<0.05. Additionally, the supplement also resulted in increased protein and free amino acid contents, and decreased fat content in chicken breast fillet (p<0.05. Furthermore, improvement in sensory attributes was observed in broilers fed with the probiotic. In conclusion, B. licheniformis treatments resulted in a significant increase (p<0.05 in broiler productivity based on an index taking into account daily weight gain and feed conversion rate. Meanwhile, the probiotic contributed towards an improvement of the chemical, nutritional and sensorial characteristics of breast fillet. Overall, the study indicates that B. licheniformis can be used as a growth promoter and meat quality enhancer in broiler poultry.

  7. Influence of combinations of fenugreek, garlic, and black pepper powder on production traits of the broilers.

    Science.gov (United States)

    Kirubakaran, A; Moorthy, M; Chitra, R; Prabakar, G

    2016-05-01

    To study the effects of combinations of fenugreek (Trigonella foenum-graecum L.), garlic (Allium sativum), and black pepper (Piper nigrum) powder supplementation on production traits of broiler chickens. A total of 288 commercial broiler chicks were randomly assigned to 1-9 groups with 4 replicates each. An experiment was conducted in broilers with different feed formulations; control feed, with no added fenugreek, garlic, and black pepper powder; and 8 treatment groups receiving feed supplemented with different combinations of fenugreek, garlic, and black pepper powder. The individual broilers' body weight and feed consumption were recorded and calculate the body weight gain and feed conversion ratio (FCR). Broiler's weight gain and FCR were significantly higher in groups receiving feed supplemented with garlic and black pepper powder combinations (pblack pepper powder combinations (pblack pepper powder supplemented broiler feed fed groups showed higher production performance. The 5 g/kg garlic powder+1 g/kg black pepper powder and 10 g/kg garlic powder+2 g/kg black pepper powder significantly improved the weight gain and FCR.

  8. Phylogenetic Group of Escherichia coli Isolates from Broilers in Brazilian Poultry Slaughterhouse

    Directory of Open Access Journals (Sweden)

    Fernanda M. Coura

    2017-01-01

    Full Text Available The aim of the study was to determine the phylogenetic groups of E. coli strains isolated from seemingly healthy broiler and broiler condemned suspected of colibacillosis in a Brazilian slaughterhouse. Samples from respiratory tract and edible giblets (liver and heart of broilers with and without macroscopic lesions of colibacillosis were collected at slaughter. There were 84 strains isolated from broilers condemned of which 11 were obtained from swabs of the heart, 7 from the liver, and 66 from the respiratory tract. Of the 53 E. coli strains isolated from broilers not condemned, 5 were isolated from the heart, 4 from the liver, and 44 from the respiratory tract. E coli strains were tested via PCR for phylogenetic groups A, B1, B2, C, D, E, and F. Phylogroups A and B1 were the most common phylogroups of E. coli obtained from healthy and sick-appearing broiler carcasses. The results of the study showed that phylogroups B2 and E were associated with the heart samples and phylogroup A was associated with respiratory tract samples, phylogroup B1 with not condemned carcass, and phylogroup D with liver samples.

  9. Utilization of house fly-maggots, a feed supplement in the production of broiler chickens.

    Science.gov (United States)

    Hwangbo, J; Hong, E C; Jang, A; Kang, H K; Oh, J S; Kim, B W; Park, B S

    2009-07-01

    Recent studies have suggested the utilization of maggots as a feed supplement forenhanced broiler performance. Maggots, which are a major dietary source of protein, appear during the biodegradation of chicken droppings using house flies. The objective ofthe present study was to investigate the effect of maggot supplementation on the meat quality and growth performance of broiler chickens. A total of 600 one-day-old male commercial broiler chicks (Ross) were randomly assigned into 5 treatment groups consisting of 40 replicates of 3 birds. The birds were fed either a basal diet or the basal diet supplemented with 5.0, 10.0, 15.0 and 20.0% maggots. Overall, broiler chicken performance was influenced by the optimal amino acid profile; high protein (63.99%) and essential amino acid content (29.46%), or high protein digestibility (98.50%) of the maggots. Maggot supplementation caused linear increases in live weight gain but not the feed conversion ratio. The diets of 10 and 15% maggots was the most efficient in terms of average weight gain forthe 4-5 week old broiler chickens (pbirds fed the basal diet (p<0.05). These results indicate that feeding diets containing 10 to 15% maggots in chicken dropping after biodegradation can improve the carcass quality and growth performance of broiler chickens.

  10. Distribution and Genetic Profiles of Campylobacter in Commercial Broiler Production from Breeder to Slaughter in Thailand.

    Directory of Open Access Journals (Sweden)

    Sakaoporn Prachantasena

    Full Text Available Poultry and poultry products are commonly considered as the major vehicle of Campylobacter infection in humans worldwide. To reduce the number of human cases, the epidemiology of Campylobacter in poultry must be better understood. Therefore, the objective of the present study was to determine the distribution and genetic relatedness of Campylobacter in the Thai chicken production industry. During June to October 2012, entire broiler production processes (i.e., breeder flock, hatchery, broiler farm and slaughterhouse of five broiler production chains were investigated chronologically. Representative isolates of C. jejuni from each production stage were characterized by flaA SVR sequencing and multilocus sequence typing (MLST. Amongst 311 selected isolates, 29 flaA SVR alleles and 17 sequence types (STs were identified. The common clonal complexes (CCs found in this study were CC-45, CC-353, CC-354 and CC-574. C. jejuni isolated from breeders were distantly related to those isolated from broilers and chicken carcasses, while C. jejuni isolates from the slaughterhouse environment and meat products were similar to those isolated from broiler flocks. Genotypic identification of C. jejuni in slaughterhouses indicated that broilers were the main source of Campylobacter contamination of chicken meat during processing. To effectively reduce Campylobacter in poultry meat products, control and prevention strategies should be aimed at both farm and slaughterhouse levels.

  11. Effect of Reused Litter and Chemical Amendment on Broiler Chicken Performance and Litter Quality

    Directory of Open Access Journals (Sweden)

    M Lotfi

    2016-06-01

    Full Text Available An experiment was conducted to evaluate the effect of chemical amendments and reused litter on broiler performances, immune response and skin quality. Five hundred and seventy six (576 day old broiler chickens were randomly allocated to 3x2 factorial design experiment. Three amendments treatment included control (no chemical addition, alunminum sulfate and zeolite; two types of litter were new and reused one. There were 4 replicates and 24 broiler chickens in each pen. The feed and water were available ad libitum during 42 days of experiment. The type of bedding had no significant effect on broilers performances (weight gain, feed efficiency ratio and mortality. Chemical amendments improved broilers performances during 0-35 days of production period but by the end of experiment there was no differences between treatment groups. Neither bedding type nor chemical amendments influenced skin erosion criteria responses. The immune response of broilers was not affected by either type of bedding or chemical amendments. It could be concluded that although beddings to be reused, it should be treated so as to overcome any defect of reused bedding.

  12. The effect of marination on lactic acid bacteria communities in raw broiler fillet strips

    Directory of Open Access Journals (Sweden)

    Timo Tapio Nieminen

    2012-10-01

    Full Text Available Marination with marinade containing salt, sugar and acetic acid is commonly used in Finland to enhance the value of raw broiler meat. In this study, the effect of marination and marinade components on composition and evolution of bacterial communities in modified atmosphere-packaged broiler fillet strips was investigated using culture-independent partial 16S rRNA gene sequencing and terminal restriction fragment length polymorphism. In unmarinated broiler fillet strips, Lactococcus spp. and Carnobacterium spp predominated at the early storage but were partially replaced by Lactobacillus spp. and Leuconostoc spp. when the chilled storage time was extended. In the marinated fillet strips, Lactobacillus spp. and Leuconostoc spp. predominated independent from the storage time. By mixing the different marinade components with broiler meat, we showed that marination changed the community composition and favored Leuconostoc spp. and Lactobacillus spp. by the combined effect of carbohydrates and acetic acid in the marinade. Marination increased the maximum level of lactic acid bacteria in broiler meat and enhanced CO2 production and acidification of meat during chilled storage. Accumulation of CO2 in the package head-space due to the enhanced growth of Leuconostoc spp. in marinated meat may lead to bulging of packages, which is a spoilage defect frequently associated with marinated and modified atmosphere-packaged raw broiler preparations in Finland.

  13. Escherichia coli isolates from broiler chicken meat, broiler chickens, pork, and pigs share phylogroups and antimicrobial resistance with community-dwelling humans and patients with urinary tract infection.

    Science.gov (United States)

    Jakobsen, Lotte; Kurbasic, Azra; Skjøt-Rasmussen, Line; Ejrnaes, Karen; Porsbo, Lone J; Pedersen, Karl; Jensen, Lars B; Emborg, Hanne-Dorthe; Agersø, Yvonne; Olsen, Katharina E P; Aarestrup, Frank M; Frimodt-Møller, Niels; Hammerum, Anette M

    2010-05-01

    Escherichia coli is the most common cause of urinary tract infection (UTI). Phylogroup B2 and D isolates are associated with UTI. It has been proposed that E. coli causing UTI could have an animal origin. The objective of this study was to investigate the phylogroups and antimicrobial resistance, and their possible associations in E. coli isolates from patients with UTI, community-dwelling humans, broiler chicken meat, broiler chickens, pork, and pigs in Denmark. A total of 964 geographically and temporally matched E. coli isolates from UTI patients (n = 102), community-dwelling humans (n = 109), Danish (n = 197) and imported broiler chicken meat (n = 86), Danish broiler chickens (n = 138), Danish (n = 177) and imported pork (n = 10), and Danish pigs (n = 145) were tested for phylogroups (A, B1, B2, D, and nontypeable [NT] isolates) and antimicrobial susceptibility. Phylogroup A, B1, B2, D, and NT isolates were detected among all groups of isolates except for imported pork isolates. Antimicrobial resistance to three (for B2 isolates) or five antimicrobial agents (for A, B1, D, and NT isolates) was shared among isolates regardless of origin. Using cluster analysis to investigate antimicrobial resistance data, we found that UTI isolates always grouped with isolates from meat and/or animals. We detected B2 and D isolates, that are associated to UTI, among isolates from broiler chicken meat, broiler chickens, pork, and pigs. Although B2 isolates were found in low prevalences in animals and meat, these sources could still pose a risk for acquiring uropathogenic E. coli. Further, E. coli from animals and meat were very similar to UTI isolates with respect to their antimicrobial resistance phenotype. Thus, our study provides support for the hypothesis that a food animal and meat reservoir might exist for UTI-causing E. coli.

  14. USE OF DIETARY CAMELINA (CAMELINA SATIVA SEEDS DURING THE FINISHING PERIOD; EFFECTS ON BROILER PERFORMANCE AND ON THE ORGANOLEPTIC TRAITS OF BROILER MEAT

    Directory of Open Access Journals (Sweden)

    GEORGETA CIURESCU

    2007-05-01

    Full Text Available The study quantified the effects of Camelina seeds and buckthorn meal on broiler carcass production and quality. Camelina seeds and buckthorn meal were incorporated in the compound feeds for finishing broilers as natural source of vitamins (beta- carotene, vitamins C, B1, B2, E, F, calcium, phosphorus, magnesium, potassium, sodium, and iron. The experiment was conducted on 600 Hybro PN broilers during the age period 7 – 42 days. The broilers were assigned to 3 groups, a control group © and two experimental groups (E1 and E2, each with 200 broilers (3 groups  3 replicates  100 broilers. Three (phase-feeding compound feeds formulations were used. The control diet consisted mainly of corn, full fat soybean, soybean meal and corn gluten. Camelina seeds (10% replaced full fat soybean in the experimental groups, while additionally, in E2 the classical premix with synthetic vitamins and minerals was replaced by buckthorn meal. The partial results show that the use of Camelina seeds reduced significantly (P<0.05 the final live weight, but the liveability percentage was not influenced by the type of dietary compound feed throughout the experimental period. Carcass fat decreased by 61.44% and 30.72% in the experimental groups compared to the control group. Total proteins increased in average by 3-10% concomitantly with the increase of the water content, fat decreased in average by 1.5-4%, the energy value also decreased proportionally with the fat in the experimental groups compared to the control group. Water retention capacity increased by 1% in E2.

  15. Influence of Covering Reused Broiler Litter with Plastic Canvas on Litter Characteristics and Bacteriology and the Subsequent Immunity and Microbiology of Broilers

    Directory of Open Access Journals (Sweden)

    D Mesa

    Full Text Available ABSTRACT In broiler production, the litter is reused for consecutives flocks, and it is treated during down time between flocks to reduce its microbial load. Although covering the litter with a plastic canvas is a common litter treatment in the field, there is little scientific information available on its efficacy. The aim of this study was to evaluate the effects of covering broiler litter with a plastic canvas for eight days on litter microbiological, physical, and chemical parameters, and on the intestinal microbiota and immunity of broilers. In the first trial, reused litter from a previous flock was distributed into three treatments, with six replicates each: L1 (negative control, litter free from Salmonella Enteritidis (SE and Eimeria maxima (EM and not covered, L2 (positive control, litter with SE and EM, and not covered, and L3 (litter with SE and EM, and covered with plastic canvas for eight days. Litter total bacteria, Enterobacteria, Lactobacillus, SE, and EM counts, and litter pH, temperature, moisture, and ammonia emission were determined on days 1 and 8. In the second trial, broilers were housed on those litters according to the treatments described above, and their intestinal microbiota, gut CD4+ and CD8+ lymphocytes and macrophages, and liver and intestinal pro-inflammatory interleukin (IFN-γ, IL-1β e IL-18 levels were evaluated on days 14 and 28. A significant reduction of litter bacterial populations was observed in the litter covered with plastic canvas. A significantly higher mRNA IFN-γ gene expression (12.5-fold was observed in the jejunum and liver of broilers reared on the litter with Enterobacteria counts. No EM reduction was observed in the covered litter. Covering reused broiler litter with plastic canvas reduces initial litter bacterial load as a result of the interaction between physical and chemical parameters.

  16. Attitudes and perceptions of three groups of family farmers in Brazil on problems they perceive in raising broilers and alternative feeding strategies

    DEFF Research Database (Denmark)

    de Almeida, Gustavo Fonseca; Horsted, Klaus; Figueiredo, E. A.

    2015-01-01

    . In addition, farmers producing AF broilers highlighted subclinical coccidiosis as of high economic importance. Production of slow-growing broilers in free-range systems would benefit from local resources for the finishing period. Novel feeding strategies for broilers are suggested based on the farmers’ report...

  17. Investigation of the pathogenesis of Enterococcus cecorum after intravenous, intratracheal or oral experimental infections of broilers and broiler breeders

    DEFF Research Database (Denmark)

    Thoefner, Ida; Christensen, Jens Peter

    be detected from the egg content. In the broilers, all birds in the IV high dose group died within 12h of peracute sepsis, despite massive bacteraemia very few lesions was observed. The PM findings in the low dose IV group resembled the field outbreaks, with severe pericarditis as the major manifestation......Enterococcus cecorum outbreaks has emerged in broiler flocks all over Europe, with considerable economical and animal welfare consequences. The infection has a broad range of manifestations (e.g. pericarditis, arthritis, osteomyelitis, and sepsis) leading to increased mortality. Currently, little...

  18. Methicillin-resistant Staphylococcus aureus and extended-spectrum and AmpC b-lactamase-producing Escherichia coli in broilers and in people living and/or working on organic broiler farms

    NARCIS (Netherlands)

    Huijbers, P.M.C.; Hoek, van A.H.A.M.; Graat, E.A.M.; Haenen, A.P.J.; Florijn, A.; Hengeveld, P.D.; Duijkeren, van E.

    2015-01-01

    The aim of this study was to estimate the prevalence of methicillin-resistantStaphylococcus aureus (MRSA) and extended-spectrum and AmpC b-lactamase (ESBL/AmpC)-producing Escherichia coli among broilers, and humans living and/or working on organic broiler farms; further characterise isolates; and

  19. Reproducible Infection Model for Clostridium perfringens in Broiler Chickens

    DEFF Research Database (Denmark)

    Pedersen, Karl; Friis-Holm, Lotte Bjerrum; Heuer, Ole Eske

    2008-01-01

    Experiments were carried out to establish an infection and disease model for Clostridium perfringens in broiler chickens. Previous experiments had failed to induce disease and only a transient colonization with challenge strains had been obtained. In the present study, two series of experiments...... were conducted, each involving four groups of chickens with each group kept in separate isolators. A coccidial vaccine given at 10 times the prescribed dosage was used to promote the development of necrotic enteritis. In the first experiment, cultures of C. perfringens were mixed with the feed at day 9......, 10, 11, and 12, and the coccidial vaccine was given at day 10, whereas in the second experiment, C. perfringens cultures were mixed with the feed at day 17, 18, 19, and 20, and the coccidial vaccine was given at day 18. Chickens were examined at day 9, 11, 12, and 15 ( Experiment 1), and at day 17...

  20. Staphylococcus simulans associated with endocarditis in broiler chickens.

    Science.gov (United States)

    Stępień-Pyśniak, D; Wilczyński, J; Marek, A; Śmiech, A; Kosikowska, U; Hauschild, T

    2017-02-01

    This report suggests a strong association between coagulase-negative Staphylococcus simulans and endocarditis in broiler chickens of a single flock. Clinical signs included increased mortality and lameness, and some dead chickens were found on their backs. Lesions included cauliflower-like, fibrinous vegetative lesions on the left atrioventricular valve; cream-coloured, necrotic foci of varying size in the liver; and necrosis of the femoral head. Histopathological examination of the heart revealed multifocal conglomerates of bacterial colonies attached to the valvular endocardium, threads of fibrin, and inflammatory cells with the presence of heterophils. S. simulans strains were first identified by API ID32, and then confirmed with Matrix-Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry and by partial sequencing of the rpoB and dnaJ genes. These bacteria were resistant to methicillin but sensitive to vancomycin and characterized by slime production and protease activity.