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Sample records for capibara hydrochoerus hydrochaeris

  1. Anatomy of the Gross Intestine of the Capybara (Hydrochoerus Hydrochaeris

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    Noelia Vazquez

    2012-01-01

    Full Text Available Problem statement: The anatomy of the gross intestine and its mesentery of the capybara (Hydrochoerus hydrochaeris have not been described completely. Approach: In the present study, eight adult capybaras were studied using gross dissection. Results: The cecum was the largest part of the intestine and was divided into base, body and apex. The cecocolic fold joined the cecum to the full extent of the proximal loop of ascending colon. The ascending colon was divided into two ansae, one proximal and one distal or spiral. The distal ansa had a spiral arrangement and was placed cranially to the right, covered ventrally by the apex of the cecum. This ansa had a centripetal gyrus to the left, a central flexure and a centrifugal gyrus turning to the right that was continuous with the transverse colon in the right colic flexure. Conclusion: The gross intestine of the capybara was different to other previously studied rodents.

  2. Effect of ascorbic acid on food preference and consumption in captive capybaras (Hydrochoerus hydrochaeris)

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    Martín Roberto Alvarez; Fernando Osvaldo Kravetz

    2009-01-01

    The aim of this work was to study the short and long term influences of ascorbic acid on Hydrochoerus hydrochaeris, if supplemented in their food. No differences regarding food intake were observed in the absence of vitamin C. On a daily basis, animals accustomed to food containing ascorbic acid prefered to continue eating the same food. Food preference in capybaras did not seem to depend on ascorbic acid availability; however, when accustomed to vitamin C, capybaras might recognize and selec...

  3. Description of Amblyomma romitii in Capybara (Hydrochoerus hydrochaeris in São Francisco do Guapor, Rondônia

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    R. T. Kemper

    2013-03-01

    Full Text Available Abstract: The present work report the finding of the tick species Amblyomma romitii Tonelli Rondelli,1939, in S Francisco do Guaporcity, west of Rondia state, in the mesoregion Madeira-Guapor The specimen was found in a capybara (Hydrochoerus hydrochaeris found dead on a farm in the region.Keywords: parasitism, Amblyomma, Rondônia, capybara

  4. Adaptabilidad y tolerancia de Cidguiros (Hydrochoerus hydrochaeris: hidrochaeridae al confinamiento

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    Ramirez Perilla Jaime

    1996-12-01

    Full Text Available Fueron estudiados el tiempo de adaptación y las distancias interindividuales de 9 chigüiros subadultos y 19 juveniles mantenidos en cautividad, por separado, en encierros
    contiguos de 5 x 9 m. cada uno, dentro de una porqueriza. La dependencia y tolerancia a la presencia humana fué total a las 8 semanas en los juveniles y más pronto en los subadultos (2 semanas. La conducta agresiva es mayor en comederos adyacentes y semicirculares que en los separados linealmente unos de otros. El 49.77% de las veces los individuos juveniles realizan todas las actividades a menos de 0.5 m. mientras que sólo el 34.83 % de los subadultos lo hacen a la misma distancia. Es posible encontrar el 77.59% de las veces a cualquier individuo subadulto a una distancia mínima de entre 0.0 y 1.5 m. de otro, mientras que los juveniles lo están el 84% de las veces. Del estudio se deduce que los chigüiros se adaptan fácilmente al cautiverio y toleran altas densidades.Time of adaptation to human presence and interindividual distances of subadults and 19 juvenile capybaras (H. hydrochaeris, separately mantained in captivity in 5 x 9 m. pens, were studied. Dependence and tolerance to human presence was maximun within 8 weeks for the juveniles and within less than 2 weeks for the subadults. The agressive
    behaviour is more frequent in adyacent and semicircular feeders than in those lineally separated. The 49.77% of the times (N =424, juveniles individuals carried out their activities in less than 0.5 m., whereas only 34.83 % of the subadults did it at the same distance. It is possible to find any subadult individual 77.5% of the time at a minimun interindividual distance ranging between 0.0 and 1.5 m., whereas for the juveniles the possibility is 84% of the time. From the study is easily established that the capybaras
    are readily adaptable to captivity and tolerate rather high densities.

  5. Meat and carcass characteristics of free-living capybaras (Hydrochoerus hydrochaeris

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    Gisele A. Felix

    2014-06-01

    Full Text Available This study aimed to evaluate carcass and meat characteristics of free-living capybaras (Hydrochoerus hydrochaeris from agricultural areas of Grande Dourados, MS, Brazil. Carcass weight, yield and measures, as well as of commercial cuts weight of five animals (2 males and 3 females, body weight between 63.4-100 kg were determined. The following parameters: moisture, protein, fat, ash, Ca, P and Fe, water holding capacity, cooking losses, shear force and color Instrumental color in CIE-Lab coordinates were determined to meat cuts (Loin, ribs, L. dorsi, chuck/brisket, ham and bottom sirloin. The dressing percentage average value was 62.47% of body weight and cold carcass yield was 57.89% of body weight, with no difference between sexes. The mean percentage of cold loss was 4.10%. Cuts yielding (ribs 24.98% and ham 27.29% were not statistically different (P>0.05. There was no significantly (P> 0.05 difference between the moisture, protein and minerals content between the different cuts, but lipids content was significantly (P< 0.05 lower in loin. The results shown that free-living capybara have characteristics appropriate for commercialization, thus it is possible to development projects for the sustainable management of rural populations.

  6. Prevalence of antibodies to Trypanosoma cruzi, Leishmania infantum, Encephalitozoon cuniculi, Sarcocystis neurona, and Neospora caninum in Capybara, Hydrochoerus hydrochaeris, from São Paulo State, Brazil.

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    Valadas, Samantha; Gennari, Solange Maria; Yai, Lucia Eiko Oishi; Rosypal, Alexa C; Lindsay, David S

    2010-06-01

    Little is known about the importance of capybara, Hydrochoerus hydrochaeris, as reservoirs for parasites of zoonotic or veterinary importance. Sera from 63 capybaras, from 6 counties in the state of São Paulo, Brazil, were examined for antibodies to Trypanosoma cruzi, Leishmania infantum, Encephalitozoon cuniculi, Sarcocystis neurona, and Neospora caninum using an indirect immunofluorescent antibody test. Five (8%) of the 63 capybaras had antibodies to T. cruzi epimastigotes. None of the samples from capybara reacted positively with L. infantum promastigotes or with spores of E. cuniculi . Two (3%) of the serum samples were positive for antibodies to S. neurona merozoites, and 2 (3%) of the serum samples were positive for antibodies to N. caninum tachyzoites. A serum sample from 1 capybara was positive for antibodies to both T. cruzi and N. caninum. None of the remaining 62 samples reacted with more than 1 parasite. PMID:20020808

  7. Soroprevalência da infecção leptospiral em capivaras (Hydrochoerus hydrochaeris abatidas em um frigorífico do Rio Grande do Sul Seroprevalence of leptospiral infection in capybaras (Hydrochoerus hydrochaeris in a slaughterhouse of Rio Grande do Sul, Brazil

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    Éverton F. Silva

    2009-02-01

    Full Text Available Capivaras (Hydrochoerus hydrochaeris são roedores selvagens do continente americano com crescente importância comercial como fonte alternativa de carne para o consumo humano. Nessa espécie, os estudos sobre a soroprevalência da infecção leptospiral são escassos e restritos aos espécimes de vida livre. Relatamos aqui reações positivas para anticorpos aglutinantes anti-leptospiras em 27,3% (6/22 das capivaras abatidas em um frigorífico do Rio Grande do Sul. Os níveis mais altos de anticorpos sugerem infecção pelo sorogrupo Australis devido à reação para uma cepa de referência do sorovar Bratislava e para um isolado canino local do sorovar Australis, caracterizado como Leptospira noguchii. Esses resultados ressaltam que considerável parcela de capivaras criadas em cativeiro podem funcionar como reservatório de leptospiras patogênicas e chamam atenção para o risco ocupacional dos trabalhos que envolvem a criação e o abate dessa espécie animal.Capybaras (Hydrochoerus hydrochaeris are wild rodents from the American Continent with increasing importance as a commercial alternative source of meat for human consumption. Studies on seroprevalence for leptospiral infection are scarce and restricted to free living capybaras. We report detection of agglutinating antibodies against leptospires in 27% (6/22 of all animals in a slaughterhouse from Rio Grande do Sul. The highest antibody titers predicted Australis as the infecting serogroup due to reactions against a reference strain of serovar Bratislava and a canine local isolate of serovar Australis, characterized as Leptospira noguchii. The data presented in this report highlight that a considerable fraction of capybaras in captivity may behave as reservoir for pathogenic leptospires emphasizing the occupational risk of those who deal with animal farming and slaughter.

  8. Diagnóstico preliminar de la producción y comercialización del chigüiro (hydrochoerus hydrochaeris) en latinoamérica con énfasis en colombia

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    Montoya, V. A.; Barragán, K. B.

    2011-01-01

    A través de una revisión bibliográfica, se realizó una aproximación diagnóstica de la producción y comercialización de Hydrochoerus hydrochaeris en Brasil, Argentina, Venezuela y Colombia. Se determinaron los factores que afectan la producción y comercialización de la especie, y mediante un análisis de conglomerados basado en la información correspondiente al sistema productivo, se identificaron seis grupos de sistemas, que responden a las similitudes en aspectos relevantes de ...

  9. Presencia de Hydrochoerus hydrochaeris (Hydrochoeridae, Rodentia, Mammalia) en la cuenca del río Carcarañá, Santa Fe, Argentina: Comentarios acerca de su conservación y biogeografía en Argentina

    OpenAIRE

    2014-01-01

    El carpincho (Hydrochoerus hydrochaeris) es el roedor actual más grande del mundo y uno de los mamíferos típico de las Provincias Fitogeográficas Pampeana y del Espinal, habitando todo el sector Este de las mismas. Estas regiones han sido categorizadas por la World Wildlife Foundation (WWF) como áreas "en peligro crítico/ amenazada", y se les asigna el nivel de máxima prioridad de conservación como consecuencia de la destrucción de hábitat, la sobreexplotación, la contaminación y la introducc...

  10. Área de acción del Chigüiro (Hydrochoerus hydrochaeris), en el municipio de Paz de Ariporo (Casanare, Colombia), durante la época seca: algunas consideraciones para su manejo

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    Montenegro Olga Lucía; Pardo Vargas Lain Efrén

    2006-01-01

    La disminución de las poblaciones de chigüiro (Hydrochoerus hydrochaeris) en la Orinoquía colombiana, han motivado investigaciones que permitan la conservación y manejo de la especie. Con este fin, se analizaron los movimientos y el área de acción de cuatro individuos en la sabana inundable del Casanare (Orinoquía colombiana),
    en época de verano. Se empleó la técnica de telemetría para su seguimiento durante los meses de enero y febrero
    en intervalos de tres horas, entre...

  11. Gastrintestinal helminths of capybara (Hydrochoerus hydrochaeris from the Paiaguás subregion, in the floodplain of “Mato Grosso do Sul”, Brazil/ Helmintos gastrintestinais de capivaras (Hydrochoerus hydrochaeris na sub-região de Paiaguás, Pantanal do Mato Grosso do Sul, Brasil

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    Isaú Gouveia Arantes

    2002-05-01

    Full Text Available Six nematode, three cestode and five trematode species were identified in 30 capybara specimens (Hydrochoerus hydrochaeris hydrochaeris L., 1766. The species of greater prevalence were: Protozoophaga obesa (96.66%, Viannella hydrochoeri (93.33%, Hydrochoerisnema anomalobursata (90.0%, F.I. P. obesa (80.0%, Taxorchis schistocotyle (76.66%, Hippocrepis hippocrepis (70.0%, Capillaria hydrochoeri (63.33%, F.I. (Viannella + Hydrochoerisnema (60.0%, Strongyloides chapini (56.66%, Monoecocestus macrobursatum (56.66%, F.I. Monoecocestus (46.66%, M. hydrochoeri (23.33% and M. hagmani (23.33%. On the other hand, Trichostrongylus axei, Neocotyle neocotyle, Nudacotyle valdevaginatus and N. tertius occurred at lower levels. The total of helminths identified in the 30 animals was of 236,097 being verified 110 (0.05% specimens in the stomach, 49,240 (20.85% in the small intestines, 186,747 (79.10% in the large intestines. The higher intensity variation were obtained by P. obesa, F.I. P. obesa, F.I. (Viannella + Hydrochoerisnema; V. hydrochoeri, S. chapini e N. valdevaginatus, with a mean of 3,900.0 (04-20,885, 2,958.1 (40-18,130, 689.7 (05-7,515, 601.5 (10-4,585, 765.3 (05-4,055 and 1,270.0 (0-1,270 worms per animal, respectively. V. hydrochoeri and S. chapini are the most pathogenic species, with clinical and subclinical parasitosis in capybara.Em trinta espécimes de capivaras (Hydrochoerus hydrochaeris hydrochaeris L., 1766 foram identificadas seis espécies de nematódeos, três de cestódeos e cinco de trematódeos. As espécies de maior prevalência foram: Protozoophaga obesa (96,66%, Viannella hydrochoeri (93,33%, Hydrochoerisnema anomalobursata (90,0%, F.I. P. obesa (80,0%, Taxorchis schistocotyle (76,66%, Hippocrepis hippocrepis (70,0%, Capillaria hydrochoeri (63,33%, F.I. (Viannella + Hydrochoerisnema (60,0%, Strongyloides chapini (56,66%, Monoecocestus macrobursatum (56,66%, F.I. Monoecocestus (46,66%, M. hydrochoeri (23,33% e M. hagmanni (23

  12. Obtención y Evaluación de las Características Seminales del Chigüiro (Hydrochoerus hydrochaeris

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    A Góngora

    2010-10-01

    Full Text Available Con el objetivo de obtener y determinar las características del semen de chigüiro (Hydrochoerus hydrochaeris en animales en confinamiento, catorce animales en un rango de 15 a 45Kg de peso provenientes de cuatro lugares de reubicación de fauna silvestre fueron muestreados en las instalaciones de la  Universidad de los Llanos, los cuales fueron sometidos a procedimientos de electroeyaculación, previa restricción física y química. Se logró inducir la eyaculación de 10 ejemplares a través de este método (71,4%. El mayor número de eyaculaciones se obtuvo cuando el voltaje alcanzó un máximo de 6V. En la valoración macroscópica el volumen promedio fue de 135,5µl,  el color y olor sui generis, y pH promedio de 8,14, la caracterización microscópica del eyaculado evidenció una motilidad  masal de 32,6%, viabilidad de 60,08%, concentración espermática 127 x 106 espermatozoides/mL y  porcentaje de anormalidades de 43,9%. Este estudio demostró la posibilidad de obtener muestras seminales en esta especie por el método de electroeyaculación, y a partir de éstas su caracterización, no reportada anteriormente por otros autores.

  13. Presencia de Hydrochoerus hydrochaeris (Hydrochoeridae, Rodentia, Mammalia en la cuenca del río Carcarañá, Santa Fe, Argentina: Comentarios acerca de su conservación y biogeografía en Argentina

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    Pablo G. Rimoldi

    2014-01-01

    Full Text Available El carpincho (Hydrochoerus hydrochaeris es el roedor actual más grande del mundo y uno de los mamíferos típico de las Provincias Fitogeográficas Pampeana y del Espinal, habitando todo el sector Este de las mismas. Estas regiones han sido categorizadas por la World Wildlife Foundation (WWF como áreas "en peligro crítico/ amenazada", y se les asigna el nivel de máxima prioridad de conservación como consecuencia de la destrucción de hábitat, la sobreexplotación, la contaminación y la introducción de especies exóticas. El carpincho presenta una preferencia marcada por los ambientes con abundancia de cuerpos de agua donde la vegetación palustre le proporciona alimento y refugio. De esta forma, tanto los cuerpos de agua como la vegetación asociada es determinante para la prevalescencia de poblaciones de carpinchos en un ambiente determinado. Para la provincia de Santa Fe los registros no son muy abundantes, registrándose hasta la actualidad unos 33 puntos de colecta/observación, la gran mayoría ubicados en el centro y norte de la provincia. El objetivo de la presente contribución es presentar nuevos registros de presencia de Hydrochoerus hydrochaeris en la cuenca del río Carcarañá (sur de la provincia de Santa Fe, y su asociación con algunas variables climático-ambientales y evaluar la distribución de esta especie. Finalmente, se discute la posible expansión o migración de este especie hacia el oeste de esta provincia y de la provincia de Buenos Aires.

  14. Diagnóstico preliminar de la producción y comercialización del chigüiro (Hydrochoerus hydrochaeris) en Latinoamérica con énfasis en Colombia

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    K. B. Barragán; V. A. Montoya

    2011-01-01

    A través de una revisión bibliográfica, se realizó una aproximación diagnóstica de la producción y comercialización de Hydrochoerus hydrochaeris en Brasil, Argentina, Venezuela y Colombia. Se determinaron los factores que afectan la producción y comercializaciónde la especie, y mediante un análisis de conglomerados basado en lainformación correspondiente al sistema productivo, se identificaron seis grupos de sistemas, que responden a las similitudes en aspectos relevantes de cada región, como...

  15. Occurrence of Fasciola hepatica (Linnaeus, 1758 in capybara (Hydrochoerus hydrochaeris (Linnaeus, 1766 in Minas Gerais, Brazil

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    Ruth Massote Dracz

    2016-01-01

    Full Text Available Abstract Fasciola hepatica is a parasite that affects the hepatic ducts of several species of domestic and wild vertebrates, causing huge economic losses to livestock rearing worldwide. Reports on occurrences of F. hepatica in capybaras are an important epidemiological aspect of this disease, since these rodents can be a source of contamination for other animals and humans. In the present study, conducted in a rural area of the municipality of Confins, Minas Gerais, fresh feces from capybaras were collected from the ground near a lagoon at the edge of the Ribeirão da Mata river. These were examined using the technique of four metal sieves. F. hepatica eggs were recovered. This trematode species was confirmed by observing morphological characteristics and measuring the eggs recovered from the capybara feces, and through experimental infection of Lymnaea columella (Say, 1817 by miracidia from these eggs and subsequent infection of C57/BL06 mice with metacercariae originating from these infected mollusks. The data suggest the occurrence of natural cycle of F. hepatica in this region and provide a warning that expansion of the geographical distribution of this parasite by means of this rodent is possible. It is therefore important to adopting measures for epidemiological control of this helminthiasis.

  16. The capybara, Hydrochoerus hydrochaeris (Mammalia: Rodentia, found at the archaeological site SC PRV 02, Santa Catarina Island, Brasil

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    Paulo César Simões-Lopes

    2005-11-01

    Full Text Available Santa Catarina Island possesses dozens of archeological sites where the skeletal remains of a great array of animals can be found. The goal of this study was to quantify the skeletal remains of capybaras found at the archeological site SC PRV 02 (1067 to 1735 BP, located in the northern part of the island, along the shores of Lagoa da Conceição, a saltwater lagoon. Thirty-seven skeletal fragments of at least 12 different individuals were identified. The anatomic regions of the capybaras most sought-after by pre-colonial inhabitants were the anterior and posterior limbs. About 40% of the skeletal fragments did not show any epiphyseal fusion with the shaft. Approximately 48% of the fragments found presented evidence of human activity. Our analyses suggest that capybaras played an important role in the diet of these inhabitants and that they were also used for the confection of different functional goods. We diagnosed the manipulation techniques used to obtain these goods, such as percussion and transversal section. The evidence of carbonization and superficial incisions indicates dismembering, preparation, and consumption of capybaras for feeding. Similar techniques were found at other archeological sites of the same age, suggesting that even though pre-colonial inhabitants of the island were considered to be fishermen, capybaras represented a well-appreciated resource.

  17. Detailed morphological description of Habronema clarki Foster & Chitwood, 1937, a nematode parasite of capybaras Hydrochoerus hydrochaeris (Linnaeus, 1766) in Brazil.

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    Hoppe, Estevam Guilherme Lux; Tebaldi, José Hairton; Ferreira, Daniel Fontana

    2014-01-01

    The genus Habronema has four valid species, of which only two are properly known. The present study aimed to describe in detail the morphology of Habronema clarki through optical and scanning electron microscopy analyses. Our results showed that the labial morphology of this parasite is closer to H. muscae than to H. microstoma. Even so, the characteristic pseudolabia and the slightly convex border of the dorsal and ventral lips are sufficient to distinguish these nematodes. Additional morphological data are presented, thus contributing to the knowledge on this little known nematode. In addition, this study provides new locality records for this species. PMID:25054508

  18. DNA extraction from skins of wild (Hydrochoerus hydrochaeris and Pecari tajacu) and domestic (Sus scrofa domestica) species using a novel protocol.

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    Ojeda, G N; Amavet, P S; Rueda, E C; Siroski, P A

    2012-01-01

    Sometimes, commercial products obtained from wild animals are sold as if they were from domestic animals and vice versa. At this point of the productive chain, legal control of possible wildlife products is difficult. Common in the commerce of northern Argentina, skins of two wild species, the carpincho and the collared peccary, look very similar to each other and to those of the domestic pig; it is extremely difficult to differentiate them after they have been tanned. Because there was no an adequate methodology to discriminate between leather of these three species, we developed a new methodology of DNA extraction from skin and leather. This new method involves digesting a leather sample using proteinase K, followed by precipitation of proteins with 5 M NaCl, cleaning with absolute isopropanol and DNA precipitation with 70% ethanol. DNA is hydrated in Tris-EDTA buffer. This protocol provided good-quality DNA suitable for analysis with molecular markers. This new protocol has potential for use in identifying leather products of these species using molecular markers based on RAPDs. PMID:22535403

  19. Teor lipídico e perfil de ácidos graxos da carne de capivara (Hydrochaeris hydrochaeris Lipid content and fatty-acids of capybara meat (Hydrochaeris hydrochaeris

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    Nilo Salgado Jardim

    2003-06-01

    Full Text Available Objetivou-se com o presente trabalho avaliar o efeito dos fatores sexo e diferentes faixas de peso ao abate (30 a 40kg, 40 a 50kg e 50 a 60kg no teor de lipídeos e perfil de ácidos graxos (AG da carne de capivara (Hydrochaeris hydrochaeris. As amostras constituíram-se da porção cranial do músculo longissimus dorsi de 28 capivaras (16 machos e 12 fêmeas provenientes de um mesmo zoocriadouro. As análises foram realizadas no Laboratório de Certificação da Qualidade de Carnes e Derivados do Instituto de Tecnologia de Alimentos-ITAL, em SP. Os lipídeos foram extraídos com clorofórmio/metanol (2:1, segundo Folch et al. (1957 e a composição de AG, por cromatografia gasosa (Bragagnolo, 1997. O músculo longissimus dorsi in natura de capivara apresentou média de 0,82% de lipídeos. Houve diferença (PThis work aimed to evaluate the effect of the factors sex and different slaughter weight ranges (30-40kg, 40-50kg, 50-60kg on the lipid content and fatty acids profiles of capybara meat. The samples were constituted of the cranial portion of the longissimus dorsi muscle of 28 capybaras (16 males and 12 females, from the same farm. The analyses were carried out at the Meats and Derived Quality Certification Laboratory of the Food Technology Institute - ITAL, in SP. The lipids were extracted using chloroform/ methanol (2:1 (v/v mixture, following the methodology of Folch et al. (1957, and the composition of fatty acids analysed by gas chromatography (Bragagnolo, 1997. The raw loin of capybara presented 0,82% of lipids. There was significant difference (P 0,05 among the contents of these fatty acids in males and females, and in the different slaughter weight ranges. A few significant differences between the factors sex and slaughter weight ranges were noticed in minor fatty acids. Comparing to the domestic species, the capybara meat analyzed in this work presented low total lipid content and high percentage of polyunsaturated fatty acids.

  20. Valores hematológicos de capivaras (Hydrochoerus hydrochaeris Rodentia:Hydrochoeridae de vida livre na região de Campinas-SP Capybara's (Hydrochoerus hydrochaeris hematological values free ranging life from Campinas regions, São Paulo state, Brazil

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    Daniela Alves Madella

    2006-08-01

    Full Text Available O objetivo deste estudo foi determinar os valores hematológicos de 14 capivaras de vida livre capturadas nos municípios de Campinas, Monte Alegre do Sul e de São João da Boa Vista. Para a obtenção das amostras de sangue, os animais foram anestesiados via intramuscular, mediante associação de cloridrato de xilazina 2% e cloridrato de ketamina 1%, em doses de 4,5mg/kg/pv e 5,0mg/kg/pv, respectivamente. O sangue foi coletado em tubos contendo EDTA. Para a determinação dos números de eritrócitos e leucócitos, foi utilizada a metodologia tradicional da câmara de Neubauer. O hematócrito foi determinado pelo método de microhematócrito e a hemoglobina pelo método da cianometahemoglobina. Para a contagem diferencial de leucócitos, foi utilizada a técnica de Shilling. Os índices hematimétricos (VCM, HCM E CHCM foram determinados com os valores encontrados na série vermelha. Os resultados da série eritrocitária foram: 4,5 x10(6/miL ± 0,2; hemoglobina: 13.5g/dL ± 0,7; hematócrito: 40,4% ± 2; VCM: 90,2 fL ± 0,9; HCM: 30,1 pg ± 0,7; CHCM: 33,3g/dL ± 1. Na série leucocitária: 5,3 x10³/miL ± 2; bastonetes: 1 % ± 2,1; segmentados: 36,6 % ± 19,9; eosinófilos: 3,5 % ± 11,7; basófilos: 0%; linfócitos: 58,8 % ± 19,6; monócitos: 1,5% ± 2,1. Não foram encontrados os mielócitos e metamielócitos.The purpose of this study was to determine the hematological values of fourteen free life capybaras captured in three cities of São Paulo State, Brazil (Campinas, Monte Alegre do Sul and São João da Boa Vista. Blood samples were obtained with the animals anesthetized through association of 2% xilazine chloridrate and 1% ketamine chloridrate, in the doses of 4.5mg/kg/pv and 5.0mg/kg/pv respectively. The blood was collected using tubes containing EDTA. To determine the number of erythrocytes and leukocytes was used the traditional methodology of the Neubauer chamber. The hematocrit was determined by the microhematocrit method and the hemoglobin by the cianometahemoglobin. For leukocyte differential count the Shilling's method was used. The hematimetric (MCV, MCH and MCHC indexes were determined with the values found in the red serie. The results were: erythrocytes: 4.5 x10(6/mul ± 0.2; hemoglobin: 13.5g/dl ± 0.7; hematocrit: 40.4% ± 2; MCV: 90.2fl ± 0.9; MCH: 30.1pg ± 0.7; MCHC: 33.3g/dl ± 1. In the leukocytes series: 5.3 x10³/mul ± 2; band neutrophil:1 % ± 2.1; segmenter: 36.6 %± 19.9; eosinophils: 3.5% ± 11.7; basophiles: 0%; lymphocytes: 58.8% ± 19.6; monocytes: 1.5% ± 2.1. Myelocytes and metamyelocytes were not found.

  1. Ocorrência de ixodidae parasitos de capivara (Hydrochoerus hydrochaeris linnaeus, 1766 na estação ecológica do Taim, Rio Grande - RS, Brasil Occurence of ixodidae parasites of capybara (Hydrochoeurus hydrochaeris linnaeus, 1766 in the ecologic area of Taim, Rio Grande - RS, Brazil

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    Afonso Lodovico Sinkoc

    1997-03-01

    Full Text Available O objetivo deste trabalho foi identificar as espécies de carrapatos observadas sobre capivaras na Estação Ecológica do Taim, Rio Grande- RS, Brasil. Foram examinadas 27 capivaras encontradas mortas por atropelamento na BR 471, em seu trecho que corta a Estação, sendo cole lados 497 carrapatos das espécies Amblyomma cooperi (=A. lutzi; = A. ypisilophorum, Amblyomma triste, Amblyomma tigrinum e ninfas do gênero Amblyomma. A. cooperi representou 68,41% dos carrapatos identificados, com uma freqüência de parasitismo de 92,60% dos hospedeiros, enquanto A. triste representou 24,75% dos carrapatos em 44,43% dos hospedeiros e A. tigrinum foi coletado em 14,81% dos hospedeiros, totalizando 1,21% dos carrapatos. As ninfas de Amblyomma sp. foram cotetadas em 18,51% dos hospedeiros apresentando um percentual de 5,63% do total de carrapatos. A relação macho : fêmea apresentou valores de 2,3 : 1 e 2 : l para o A. cooperi e A. triste, respectivamente. Todos hospedeiros apresentavam-se parasitados, com uma média de 18,4 carrapatos, variando de 1 a 64 carrapatos coletados por hospedeiro.The aim of this article was the identification ofthe tick species observed on capybara in wildlife in the Ecologic Area of Taim, Rio Grande - RS; Brazil. Twenly seven capybaras found dead by trample in the road BR 471 in the Ecologic Area, wereexamined ticks coilected of the species Amblyomma cooperi (= A. lutzi and = A. ypisilophorum, Amblyomma triste, Amblyomma tigrinum and ninphs of the Genus Amblyomma. Amblyomma cooperi represented 68.41% of the ticks with a frequency of parasitism of 92.60% of the hosts; Amblyomma triste species represented 24.75% of the collected ticks m 44.43% of the hosts; Amblyomma tigrinum species were coilected m 14.81% of the hosts from a total of 1.21% of the found ticks and, the nimphs of Amblyomma were coilected in 18.51% of the hosts per forming 5.63% of the ali ticks coilected. The relation mate .female showed values of 2.3:1 and 2:1 to A. cooperiand and A. triste, respectivety. All examined hosts were found wiih ticks, with a mean of 18.4 ticks per host.

  2. Efeitos dos métodos de abate e sexo na composição centesimal, perfil de ácidos graxos e colesterol da carne de capivaras Effect of two slaughter methods and sex on proximate composition, cholesterol content and fatty acids profile of capybara meat (Hydrochaeris Hydrochaeris L. 1766

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    Sandra H. I. Oda

    2004-06-01

    Full Text Available O objetivo desse trabalho foi avaliar os efeitos de métodos de abate (MA (humanitário (MH e por tiro (MT e sexo na composição centesimal, perfil de ácidos graxos (AG e colesterol da carne de capivara (Hydrochaeris hydrochaeris L. 1766. Foram abatidos 20 animais (13 machos (M e 7 fêmeas (F com peso médio de 45,71kg. No músculo longissimus dorsi (LD foram determinados: umidade, lipídios totais (LT, proteína e cinzas e no semimembranosus (SM, o colesterol por colorimetria e o perfil de AG por cromatografia gasosa. O LD apresentou: 75,87% de umidade, 1,37% de LT, 22,11% de proteínas e 1,09% de cinzas. Houve diferença (pThe objective of this work was to evaluate the effects of two slaughter methods: traditional (TS and head-shot (HS and sex on the proximate composition, fatty acids (FA profile and cholesterol content of capybara meat. Twenty animals (13 males (M and 7 females (F, weighting about 45.71kg, were slaughtered. In longissimus dorsi (LD muscle were determined: moisture, crude fat, protein and ash. In semimembranosus (SM muscle, were determined: cholesterol content for colorimetric method and fatty acids (FA profile for gas chromatography. The LD muscle had values of: 75.87% of moisture, 1.37% of crude fat, 22.11% of crude protein, 1.09% of ash. There were significant differences (p<0.01 between lipid contents of M (1.75% and F (0.98%. The FA in major concentration (% were: C16:0 (29.57; C18:1w9 (27.87; C18:2w6 (19.19; C18:0 (6.57; C18:3w3 (4.97; C14:0 (3.64; C20:4w6 (3.45; C18:1w7 (3.31 and C16:1w7 (1.90. Ratio value of poliunsaturated FA to saturated FA was 0.82. The average values of w6 FA and w3 FA were 23.41 and 5.63%, respectively. The factors sex and slaughter method had no effect on poliunsaturated FA percentages and cholesterol content (28.11mg/100g. Capybara meat presented low total lipid content and high crude protein values and FA w6/w3 ratio considered nutritionally adequated.

  3. Journal of Parasitology

    OpenAIRE

    Valadas, S; Gennari, S.M.; Yai, L. E. O.; Rosypal, A. C.; Lindsay, D S

    2010-01-01

    Little is known about the importance of capybara. Hydrochoerus hydrochaeris, as reservoirs for parasites of zoonotic or veterinary importance. Sera from 63 capybaras, from 6 counties in the state of Sao Paulo, Brazil, were examined for antibodies to Trypanosoma cruel, Leishmania infantum, Encephalitozoon cuniculi. Sarcacystis neurona, and Neospora caninum using an indirect immunofluorescent antibody test. Five (8%) of the 63 capybaras had antibodies to T cruzi epimastigotes. None of the sampl...

  4. The Use Of A Natural Cave For Breeding By Giant Otters In The Brazilian Pantanal: Observations And New Insights On Giant Otter Behavior

    OpenAIRE

    Camilo-Alves C.; Desbiez A.

    2005-01-01

    It has long been known that giant otters excavate dens for breeding and resting. One family of giant otters which we have observed on the Brazilian Pantanal, also use a long cave in a rocky cliff, particularly when raising cubs. The cave is not above the highest flood level, but does not usually flood, unlike excavated dens, which are very susceptible to flooding. Nearby caves were used by Neotropical Otters (Lontra longicaudis) and Capybaras (Hydrochoerus hydrochaeris).

  5. The Use Of A Natural Cave For Breeding By Giant Otters In The Brazilian Pantanal: Observations And New Insights On Giant Otter Behavior

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    Camilo-Alves C.

    2005-04-01

    Full Text Available It has long been known that giant otters excavate dens for breeding and resting. One family of giant otters which we have observed on the Brazilian Pantanal, also use a long cave in a rocky cliff, particularly when raising cubs. The cave is not above the highest flood level, but does not usually flood, unlike excavated dens, which are very susceptible to flooding. Nearby caves were used by Neotropical Otters (Lontra longicaudis and Capybaras (Hydrochoerus hydrochaeris.

  6. Rapid identification of capybara (Hydrochaeris hydrochaeris through allele-specific PCR

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    Flávio Henrique-Silva

    2005-07-01

    Full Text Available The capybara is the largest rodent in the world and is widely distributed throughout Central and South America.  It is an animal of economic interest due to the pleasant flavor of its meat and higher protein content in comparison  to beef and pork meat.  The hide, hair and fat also have economic advantages. Thus,  as an animal with such high economic potential, it is the target of hunters, even though  hunting capybara is prohibited by law in Brazil.   Due to their  similarities,  capybara meat  is easily confused with  pork  meat.   This  occurs  upon  the apprehension of the  meat  from hunters, as well as in some restaurants that serve capybara meat that was slaughtered clandestinely. In both cases, when the meat is confiscated, those responsible for the crimes claim it is pork meat,  hindering  the enforcement of the law. A practical  course was ministered  to undergraduate biology students enrolled in the elective course Introduction to Genetic  Engineering  at Federal  University  of Sao Carlos (UFSCar, Sao Paulo  State, Brazil.  The  objective  of the  course was to establish  and  apply  a Polymerase  Chain  Reaction  (PCR assay to identify capybara meat and discriminate it in relation  to other types of meat,  including pork. Primers  were designed based  on 12S rRNA,  transthyretin and  growth  hormone  receptor  genes.  The primers generated  capybara specific fragments  of approximately 220, 290 and 330 bp for transthyretin,12S rRNA  and  growth  hormone  receptor,  respectively.   The  duplexes  developed  in the  present work can be used effectively to discriminate capybara meat  from other  animals,  contributing to combating predatory capybara hunting. The results were extensively discussed and the students have contributed to written a paper  to be submitted to a publication.

  7. Habitats, population densities, and social structure of capybaras (Hydrochaeris Hydrochaeris, Rodentia in the Pantanal, Brazil

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    Cleber J.R. Alho

    1987-01-01

    Full Text Available (1 The Pantanal is the central portion of a sunken flat plain bordering the upper Paraguay river, with an area of 140,000 km². Seasonal floods begin in January and end in April. From May to October the land dries out and campos (grassland formations and scattered pools appear. (2 Typical capybara habitat in the Pantanal is composed of three components: the water, a patch of forest, and a grass field for foraging. Highest densities of capybaras (14 individuals/km² were found during the rainy season when the available space for capybaras was reduced due to the flooding. Areas without ponds or creeks presented low densities (from 0.38 to 0.84 capybaras/km². Group sizes ranged from 2 to 49 individuals (x = 9.48. (3 Reproduction occurred year-round and young of different ages were seen throughout the year. However, the principal recruitment of young to the population was observed in July-August. While the females took turns in caring for young of different ages, probably the offspring of mothers who are sisters in the same social groups, the males competed intensively with each other for access to breeding females. The male's reproductive success appears to be limited to the number of breeding females that males have access to in the social group.

  8. Growth and development of the placenta in the capybara (Hydrochaeris hydrochaeris)

    DEFF Research Database (Denmark)

    Kanashiro, Claudia; Santos, Tatiana C; Miglino, Maria Angelica;

    2009-01-01

    : Material was collected from six animals at pregnancy stages ranging from the late limb bud stage to mid gestation. Methods included latex casts, standard histology, immunohistochemistry for cytokeratin, vimentin, alpha-smooth muscle actin, and proliferating cell nuclear antigen as well as transmission......, there was a prominent subplacenta comprising cellular and syncytial trophoblast with mesenchyme and associated blood vessels. At 90 days, differentiation was complete and similar to that seen in other hystricognath rodents. Overlap of fetal vessels and maternal blood lacunae was confirmed by latex...

  9. Composição centesimal e teor de colesterol dos cortes comerciais de capivara (Hydrochaeris hydrochaeris L. 1766 Centesimal composition and cholesterol content in commercial cuts of capybaras (Hydrochaeris hydrochaeris L. 1766

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    Sandra H. I. Oda

    2004-12-01

    Full Text Available Com o presente trabalho, objetivou-se determinar a composição centesimal e o teor de colesterol presente dos diferentes cortes comerciais da carne de capivara. A umidade, proteína, extrato etéreo e cinzas foram determinados segundo a AOAC (1990. O colesterol foi determinado por colorimetria. Os cortes comerciais apresentaram média de 75,80% de umidade; 21,74% de proteína; 0,74% de lipídios; 0,90% de cinzas; e 23,3 mg/100g de colesterol. Houve diferença (PThe aim of this work was to determine the proximate composition and cholesterol content in different commercial cuts of capybara. Moisture, crude fat, lipids and ash were determined following AOAC (1990 methods. Cholesterol content was determined by colorimetric method. Commercial cuts had values of: 75.8% of moisture; 21.74% of crude protein; 0.74% of crude fat; 0.90% of ash and 23.3mg/100g of cholesterol. There were significant (P<.05 differences on percentages of moisture and cholesterol content in the different commercial cuts. However, there was no difference on crude protein, crude fat and ash values. Results showed a lower percentage of lipids and cholesterol content in comparison with the meat of other species.

  10. Composição centesimal e teor de colesterol dos cortes comerciais de capivara (Hydrochaeris hydrochaeris L. 1766) Centesimal composition and cholesterol content in commercial cuts of capybaras (Hydrochaeris hydrochaeris L. 1766)

    OpenAIRE

    Sandra H. I. Oda; Maria Cristina Bressan; Rilke Tadeu Fonseca de Freitas; Giulianna Z. Miguel; Josye O. Vieira; Peter B. Faria; Taciana V. Savian

    2004-01-01

    Com o presente trabalho, objetivou-se determinar a composição centesimal e o teor de colesterol presente dos diferentes cortes comerciais da carne de capivara. A umidade, proteína, extrato etéreo e cinzas foram determinados segundo a AOAC (1990). O colesterol foi determinado por colorimetria. Os cortes comerciais apresentaram média de 75,80% de umidade; 21,74% de proteína; 0,74% de lipídios; 0,90% de cinzas; e 23,3 mg/100g de colesterol. Houve diferença (P

  11. Zooarqueologia dos mamíferos aquáticos e semi-aquáticos da Ilha de Santa Catarina, sul do Brasil

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    Pedro Volkmer de Castilho

    2001-09-01

    Full Text Available This study analyzes the use of aquatic mammals by prehistoric societies of Santa Catarina Island, Southern Brazil. Samples from two archaeological sites were examined: Rio do Meio (RM and Porto do Rio Vermelho (SCPRV. Nine aquatic mammal species were found: a pinnipeds: Arctocephalus australis (Zimmerman, 1783 and A. tropicalis (Gray, 1872, and b cetaceans: Eubalaena australis (Desmoulins, 1822, Delphinus delphis Linnaeus, 1758, Stenella frontalis (Cuvier, 1829, Steno bredanensis (Lesson, 1828, Tursiops truncatus (Montagu, 1821, Pontoporia blainvillei (Gervais & d'Orbigny, 1844 and a non-identified rorqual from the genus Balaenoptera Lacépède, 1804. Three especies of semi-aquatic mammals were also recorded: Hydrochoerus hydrochaeris (Linnaeus, 1758, Tapirus terrestris (Linnaeus, 1758 and Lontra longicaudis (Olfers,1818. Both sites presented similar species diversity, although abundance was greater at the most recent site (RM. There were more samples from axial skeletons, but in genera the anatomical regions were homogeneously distributed among the identified taxa.

  12. New tick records in Rondônia, Western Brazilian Amazon Novos relatos de carrapatos em Rondônia, Amazônia ocidental brasileira

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    Marcelo Bahia Labruna

    2010-09-01

    Full Text Available In the present study, we provide new tick records from Vilhena Municipality, in the Southeast of the State of Rondônia, Northern Brazil. Ticks collected from a capybara, Hydrochoerus hydrochaeris (Linnaeus, were identified as Amblyomma romitii Tonelli-Rondelli (1 female, and Amblyomma sp. (1 larva. Ticks collected from a harpy eagle, Harpia harpyja (Linnaeus, were identified as Amblyomma cajennense (Fabricius (16 nymphs and Haemaphysalis juxtakochi Cooley (1 nymph. Ticks collected from a yellow-footed tortoise, Chelonoidis denticulada (Linnaeus, were identified as Amblyomma rotundatum Koch (10 females, 2 nymphs, and Amblyomma sp. (2 larvae. The present record of A. romitii is the first in the State of Rondônia, and represents the southernmost record for this tick species, indicating that its distribution area is much larger than currently recognized. Although both A. cajennense and H. juxtakochi have been reported parasitizing various bird species, we provide the first tick records on a harpy eagle. A. rotundatum is widespread in the State of Rondônia, and has been previously reported on the yellow-footed tortoise. The present records increase the tick fauna of Rondônia to 26 species.O presente estudo relata novos achados de carrapatos provenientes do Município de Vilhena, Sudeste do Estado de Rondônia, na região Norte do Brasil. Carrapatos colhidos de uma capivara, Hydrochoerus hydrochaeris (Linnaeus, foram identificados como Amblyomma romitii Tonelli-Rondelli (1 fêmea e Amblyomma sp. (1 larva. Carrapatos colhidos de uma águia harpia, Harpia harpyja (Linnaeus, foram identificados como Amblyomma cajennense (Fabricius (16 ninfas e Haemaphysalis juxtakochi Cooley (1 ninfa. Carrapatos colhidos de um jabuti, Chelonoidis denticulada (Linnaeus, foram identificados como Amblyomma rotundatum Koch (10 fêmeas, 2 ninfas e Amblyomma sp. (2 larvas. O presente achado de A. romitii é o primeiro no Estado de Rondônia, representando o achado mais

  13. ANÁLISIS ARQUEOFAUNÍSTICO DEL SITIO PASO DEL TALA (GOYA, CORRIENTES, ARGENTINA / Zooarchaeological study of faunal remains from Paso del Tala site (Goya, Corrientes, Argentina

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    Carolina Barboza

    2014-12-01

    Full Text Available En este trabajo se presentan los resultados del estudio de los restos arqueofaunísticos procedentes del sitio Paso del Tala (Goya, Corrientes, Argentina. Los mismos evidencian la ocupación por parte de grupos prehispánicos en el sector de islas de la llanura aluvial del Paraná Medio durante el Holoceno tardío (356 ± 41 años AP. Se realizó la estimación de la composición anatómica y taxonómica de los conjuntos; se examinaron diferentes aspectos tafonómicos y se evaluaron las modificaciones antrópicas. Los resultados indican que los taxones que habrían sido más explotados por estos grupos están representados principalmente por aquellos característicos de los ambientes fluviales de la zona. Entre ellos se destaca la presencia de especímenes correspondientes a distintas especies de peces, seguidos por mamíferos y roedores, entre los que es importante mencionar la presencia de Hydrochoerus hydrochaeris. Los trabajos de campo permitieron recuperar además del material faunístico, objeto de análisis en el presente trabajo, abundante cantidad de material cerámico, seguido por restos de carbón, material lítico, entre otros. Palabras clave: Zooarqueología, Cazadores-recolectores-pescadores, Llanura aluvial del Paraná Medio, Sector de Islas, Holoceno tardío.   Zooarchaeological study of faunal remains from Paso del Tala site (Goya, Corrientes, Argentina   Abstract This paper presents the analysis of faunal assemblages from Paso del Tala site (Goya, Corrientes, Argentina. This provides new information about hunter-gatherer-fisher occupations in Middle Parana islands during the Late Holocene (356 ± 41 years BP. Remains were identified with regard to anatomy and taxonomy. The focus of the analysis was to differentiate anthropic modification and the action of other agents or taphonomic processes. As a result, the importance of fluvial resources was inferred. Among the taxa that have been identified, fishes, mammals and rodents

  14. The role of river drainages in shaping the genetic structure of capybara populations.

    Science.gov (United States)

    Byrne, María Soledad; Quintana, Rubén Darío; Bolkovic, María Luisa; Cassini, Marcelo H; Túnez, Juan Ignacio

    2015-12-01

    The capybara, Hydrochoerus hydrochaeris, is an herbivorous rodent widely distributed throughout most of South American wetlands that lives closely associated with aquatic environments. In this work, we studied the genetic structure of the capybara throughout part of its geographic range in Argentina using a DNA fragment of the mitochondrial control region. Haplotypes obtained were compared with those available for populations from Paraguay and Venezuela. We found 22 haplotypes in 303 individuals. Hierarchical AMOVAs were performed to evaluate the role of river drainages in shaping the genetic structure of capybara populations at the regional and basin scales. In addition, two landscape genetic models, isolation by distance and isolation by resistance, were used to test whether genetic distance was associated with Euclidean distance (i.e. isolation by distance) or river corridor distance (i.e. isolation by resistance) at the basin scale. At the regional scale, the results of the AMOVA grouping populations by mayor river basins showed significant differences between them. At the basin scale, we also found significant differences between sub-basins in Paraguay, together with a significant correlation between genetic and river corridor distance. For Argentina and Venezuela, results were not significant. These results suggest that in Paraguay, the current genetic structure of capybaras is associated with the lack of dispersion corridors through permanent rivers. In contrast, limited structuring in Argentina and Venezuela is likely the result of periodic flooding facilitating dispersion. PMID:26385561

  15. New tick records from the state of Rondônia, western Amazon, Brazil.

    Science.gov (United States)

    Martins, Thiago F; Venzal, José M; Terassini, Flávio A; Costa, Francisco B; Marcili, Arlei; Camargo, Luis M A; Barros-Battesti, Darci M; Labruna, Marcelo B

    2014-01-01

    From 2005 to 2012, ticks were collected from different hosts at different localities of the state of Rondônia. The following 16 ixodid tick species were identified: Ixodes fuscipes, Amblyomma auricularium, Amblyomma coelebs, Amblyomma dubitatum, Amblyomma geayi, Amblyomma humerale, Amblyomma latepunctatum, Amblyomma longirostre, Amblyomma naponense, Amblyomma nodosum, Amblyomma oblongoguttatum, Amblyomma ovale, Amblyomma romitii, Amblyomma rotundatum, Amblyomma scalpturatum, and Amblyomma varium. From these, A. auricularium, A. dubitatum, and A. geayi are reported for the first time in the state of Rondônia. We provide the following tick-host associations that have not been reported anywhere: A. longirostre on Pteroglossus bitorquatus, A. rotundatum on Hydrodynastes gigas, and A. latepunctatum and A. scalpturatum on Hydrochoerus hydrochaeris. An adult male specimen of A. rotundatum is reported on Boa constrictor, comprising only the fourth male specimen to be recorded for this obligate parthenogenetic tick species. We also report the presence of the argasid species Ornithodoros kohlsi for the first time in Brazil, based on larval specimens collected on bats Molossops (Neoplatymops) mattogrossensis in Monte Negro, Rondônia. The present study increases the Brazilian tick fauna to 65 species, from which 34 species (52 %) are now registered to Rondônia. Such high diversity of ticks in a relatively small state, associated with increasing environmental alteration due to deforestation and human occupation, makes Rondônia a potential source of tick-borne diseases. PMID:23975565

  16. Trypanosoma evansi kDNA minicircle found in the Venezuelan nectar-feeding bat Leptonycteris curasoae (Glossophaginae), supports the hypothesis of multiple origins of that parasite in South America.

    Science.gov (United States)

    Silva-Iturriza, Adriana; Nassar, Jafet M; García-Rawlins, Ariany M; Rosales, Romel; Mijares, Alfredo

    2013-04-01

    Trypanosoma evansi is a mammal generalist protozoon which causes negative effects on health and productivity in bovine and equine herds in South America, Europe, Asia and Africa. By molecular methods, we screened the presence of that parasite together with other trypanosome species in 105 bats of 10 species collected in arid zones of northern Venezuela. The first molecular approach was fluorescent fragment length barcoding (FFLB), which relies on amplification of relative small regions of rRNA genes (four loci) and fluorescence detection. By FFLB, 17 samples showed patterns of possible trypanosomatid infections. These samples were used to test presence of trypanosomes by PCR using the following DNA markers: V7-V8 SSU rRNA, gGAPDH and kDNA minicircle regions. Only in one individual of the nectar-feeding bat, Leptonycteris curasoae, we were able to amplify 1000bp of the trypanosome kDNA minicircle. That PCR product was sequenced and the parasite species was determined by NCBI-BLAST and phylogenetic analysis. Both analyses showed that the minicircle sequence corresponds to Trypanosoma evansi. The phylogenetic analysis of the sequence obtained in this study clustered with a T. evansi sequence obtained in a Venezuelan capybara, Hydrochoerus hydrochaeris, and distant of others two T. evansi sequences obtained in a Colombian capybara and horse. This result supports the hypothesis of multiple origins of T. evansi in South America. PMID:23111094

  17. Illegal hunting cases detected with molecular forensics in Brazil

    Directory of Open Access Journals (Sweden)

    Sanches Alexandra

    2012-08-01

    Full Text Available Abstract Background Illegal hunting is one of the major threats to vertebrate populations in tropical regions. This unsustainable practice has serious consequences not only for the target populations, but also for the dynamics and structure of tropical ecosystems. Generally, in cases of suspected illegal hunting, the only evidence available is pieces of meat, skin or bone. In these cases, species identification can only be reliably determined using molecular technologies. Here, we reported an investigative study of three cases of suspected wildlife poaching in which molecular biology techniques were employed to identify the hunted species from remains of meat. Findings By applying cytochrome b (cyt-b and cytochrome oxidase subunit I (COI molecular markers, the suspected illegal poaching was confirmed by the identification of three wild species, capybara (Hydrochoerus hydrochaeris, Chaco Chachalaca (Ortalis canicollis and Pampas deer (Ozotoceros bezoarticus. In Brazil, hunting is a criminal offense, and based on this evidence, the defendants were found guilty and punished with fines; they may still be sentenced to prison for a period of 6 to 12 months. Conclusions The genetic analysis used in this investigative study was suitable to diagnose the species killed and solve these criminal investigations. Molecular forensic techniques can therefore provide an important tool that enables local law enforcement agencies to apprehend illegal poachers.

  18. Non-legalized commerce in game meat in the Brazilian Amazon: a case study.

    Science.gov (United States)

    Baía Jr, Pedro Chaves; Guimarães, Diva Anelie; Le Pendu, Yvonnick

    2010-09-01

    In tropical forests, wild game meat represents an option or the only protein source for some human populations. This study analyzed the wildlife meat trade destined to human consumption in an open market of the Amazon rainforest, Brazil. Wildlife meat trade was monitored during 2005 through interviews to vendors and consumers in order to evaluate the socioeconomic profile of the sellers, the main species and byproducts sold, their geographical origin, commercial value, frequency of sale and product demand. Data indicated that vendors were financially highly dependant of this activity, getting a monthly income up to US$271.49. During the survey, the amount of wildlife meat on sale added a total of 5 970kg, as follows: 63.2% capybara (Hydrochoerus hydrochaeris), 34.4% cayman (Melanosuchus niger and/or Caiman crocodilus crocodilus), 1.1% paca (Cuniculus paca); 0.6% armadillo (Dasypus novemcinctus), 0.5% deer (Mazama americana), 0.2% matamata (Chelus fimbriatus), and 0.1% opossum (Didelphis marsupialis). Most of the commercialized species were not slaughtered locally. The consumption of wildlife meat was admitted by 94% of the interviewed, consisting of 27 ethno-species: 19 mammals, 6 reptiles, and 2 birds. The same percentage of the interviewed (94%) already bought wildlife meat of 18 species: 12 mammals and 6 reptiles. The great amount of wildlife meat traded and the important demand for these products by the local population, point out the necessity to adopt policies for a sustainable management of cinegetic species, guaranteeing the conservation of the environment, the improvement of living standards, and the maintenance of the local culture. PMID:20737856

  19. Detection of Trypanosoma evansi infection in wild capybaras from Argentina using smear microscopy and real-time PCR assays.

    Science.gov (United States)

    Eberhardt, A T; Monje, L D; Zurvera, D A; Beldomenico, P M

    2014-05-28

    Trypanosoma evansi is a flagellated protozoan that parasitizes a wide variety of mammals, occasionally including humans. In South America, it infects horses, cattle, buffaloes, dogs and wild mammals, causing a disease known as "Mal de Caderas", which results in important economic losses due to a wide range of pathological expressions. Argentina represents the southern limit of its distribution. The capybara (Hydrochoerus hydrochaeris) is a large rodent found in tropical to temperate freshwater wetlands of South America. As capybaras infected with T. evansi present no clinical signs of disease, withstanding high parasitaemia, this species was proposed as a reservoir host. In this study we investigated the prevalence and parasitaemic intensity of T. evansi in samples obtained from 60 free-ranging capybaras of Esteros del Iberá (Corrientes province, northeastern Argentina) using smear microscopy and real-time PCR assays. All the cases of capybaras infected with T. evansi were found during one of the years studied, with no evidence of seasonality. The overall infection prevalence was 10%, but between years it ranged from 0% to 17% (in 2011). This is the first confirmation of T. evansi infection in Argentina by molecular biology techniques. Our results showed no differences between the methods used to detect the presence of T. evansi in capybaras, which indicates that simple methods like microscopy can generate important data on the ecoepidemiology of this parasite. Both techniques used in this study represent a viable tool for ecoepidemiological studies, and can be used to produce good estimates of prevalence and parasitaemic level of the infection, which inform for the implementation of strategies for the control of the disease. PMID:24636712

  20. Non-legalized commerce in game meat in the Brazilian Amazon: a case study

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    Pedro Chaves Baía Júnior

    2010-09-01

    Full Text Available In tropical forests, wild game meat represents an option or the only protein source for some human populations. This study analyzed the wildlife meat trade destined to human consumption in an open market of the Amazon rainforest, Brazil. Wildlife meat trade was monitored during 2005 through interviews to vendors and consumers in order to evaluate the socioeconomic profile of the sellers, the main species and byproducts sold, their geographical origin, commercial value, frequency of sale and product demand. Data indicated that vendors were financially highly dependant of this activity, getting a monthly income up to US$271.49. During the survey, the amount of wildlife meat on sale added a total of 5 970kg, as follows: 63.2% capybara (Hydrochoerus hydrochaeris, 34.4% cayman (Melanosuchus niger and/or Caiman crocodilus crocodilus, 1.1% paca (Cuniculus paca; 0.6% armadillo (Dasypus novemcinctus, 0.5% deer (Mazama americana, 0.2% matamata (Chelus fimbriatus, and 0.1% opossum (Didelphis marsupialis. Most of the commercialized species were not slaughtered locally. The consumption of wildlife meat was admitted by 94% of the interviewed, consisting of 27 ethno-species: 19 mammals, 6 reptiles, and 2 birds. The same percentage of the interviewed (94% already bought wildlife meat of 18 species: 12 mammals and 6 reptiles. The great amount of wildlife meat traded and the important demand for these products by the local population, point out the necessity to adopt policies for a sustainable management of cinegetic species, guaranteeing the conservation of the environment, the improvement of living standards, and the maintenance of the local culture. Rev. Biol. Trop. 58 (3: 1079-1088. Epub 2010 September 01.

  1. Valores hematológicos e identificação morfo-citoquímica de células sangüíneas de capivaras (Hydrochoerus hydrochoeris parasitadas por carrapatos e capivaras livres de infestação - DOI: 10.4025/actascianimsci.v25i1.2116 Hematological values and morpho-cytochemical blood cells identification of tick parasited capybaras (Hydrochoerus hydrochoeris and capybaras free of parasitism - DOI: 10.4025/actascianimsci.v25i1.2116

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    Antenor Aguiar Santos

    2003-04-01

    Full Text Available Amostras de sangue foram colhidas de 37 capivaras parasitadas por carrapatos e de 21 capivaras livres de infestação para a identificação dos diferentes tipos celulares circulantes e para realização de hemograma. Após análise morfológica, as células sangüíneas foram identificadas como heterófilos, eosinófilos, basófilos, linfócitos, monócitos e plaquetas. A reação de PAS demonstrou glicogênio no citoplasma dos heterófilos e plaquetas. Reação positiva para mieloperoxidase e lipídeos foi demonstrada apenas nos grânulos citoplasmáticos esféricos dos heterófilos e em todos os grânulos citoplasmáticos dos eosinófilos. O método do azul de bromofenol revelou reação fortemente positiva nos grânulos de heterófilos, eosinófilos, basófilos e nas hemácias. Reação positiva para fosfatase alcalina foi observada nos heterófilos e eosinófilos. Os valores hematimétricos que mostraram diferenças estatisticamente significantes (p6/µL e 2,81±0,62 x 106/µL, hematócrito (48.14±4.75% e 41,22±6.21%, e, na contagem diferencial, os heterófilos (39,38±11,02% e 16,14±7,13% e, eosinófilos (8,57±3,78% and 21,92±10,24%. Os carrapatos foram identificados como Amblyomma cajenense and Amblyomma cooperi. As capivaras altamente infestadas por esses carrapatos apresentaram anemia e uma eosinofilia marcante.Blood samples were collected from thirty seven adult parasited capybaras and twenty one free of parasitism aiming the characterization of different circulating cell types and complete hemogram. After a morphological analysis, the blood cells were identified as heterophils, eosinophils, basophils, lymphocytes, monocytes and platelets. The PAS reaction revealed glycogen in heterophils and platelets cytoplasm. A positive reaction was found only in heterophils round granules and in all cytoplasmic granules of eosinophils for the demonstration of myeloperoxidase activity and lipids. The bromofenol blue method revealed strong positivity in heterophils, eosinophils, basophils granules and red blood cells. A positive reaction for alkaline phosphatase was observed in eosinophils and heterophils. The blood parameters studied showed statistic differences (p6/µL and 2,81±0,62 x 106/µL , haematocrit (48.14±4.75% and 41,22±6.21% and heterophils (39,38±11,02% and 16,14±7,13% /eosinophils (8,57±3,78% and 21,92±10,24% in differential count. In this case the ticks involved in the parasitism of these capybaras were identified as Amblyomma cajenense and Amblyomma cooperi. These data showed that the highly infested capybaras presented some anemia and a remarkable eosinophilia.

  2. Valores hematológicos e identificação morfo-citoquímica de células sangüíneas de capivaras (Hydrochoerus hydrochoeris) parasitadas por carrapatos e capivaras livres de infestação - DOI: 10.4025/actascianimsci.v25i1.2116 Hematological values and morpho-cytochemical blood cells identification of tick parasited capybaras (Hydrochoerus hydrochoeris) and capybaras free of parasitism - DOI: 10.4025/actascianimsci.v25i1.2116

    OpenAIRE

    Antenor Aguiar Santos; Marcelo Leite da Veiga; Eliana Reiko Matushima; Matias Pablo Juan Szabó; Karin Marie van der Heijden; Mizue Imoto Egami

    2003-01-01

    Amostras de sangue foram colhidas de 37 capivaras parasitadas por carrapatos e de 21 capivaras livres de infestação para a identificação dos diferentes tipos celulares circulantes e para realização de hemograma. Após análise morfológica, as células sangüíneas foram identificadas como heterófilos, eosinófilos, basófilos, linfócitos, monócitos e plaquetas. A reação de PAS demonstrou glicogênio no citoplasma dos heterófilos e plaquetas. Reação positiva para mieloperoxidase e lipídeos foi demonst...

  3. Implicaciones de la resolución espacial sobre la estimación de modelos de distribución, evaluación de hábitat y cuotas de aprovechamiento del chigüiro (Hydrochaerus hydrochaeris), en las sabanas inundables de la Orinoquía Colombiana

    OpenAIRE

    Sarmiento Pinzón, Carlos Enrique

    2011-01-01

    Evaluamos diferentes aspectos relativos a la escala espacial que pueden influir sobre la variabilidad, precisión y confiabilidad de los modelos de distribución geográfica (presencia y densidad) del chigüiro en las Sabanas Inundables de la Orinoquía Colombiana. Dichos aspectos abarcan la resolución espacial y cubrimiento geográfico de las variables independientes y de las localidades de presencia y abundancia, así como las posibles implicaciones del uso de imágenes satelitales de diferente re...

  4. - Un modelo descriptivo del sistema reproductor hembra del coipo (Myocastor coypus I: el ovario (A descriptive model of the female reproductive system of coypu (Myocastor coypus I: the ovary

    Directory of Open Access Journals (Sweden)

    Felipe, A. E.

    2005-12-01

    conformada por tejido conectivo en disposición plexiforme, en el cual las fibras se orientaron en todas direcciones. Se observaron también fibras elásticas y argentófilas. En los ejemplares estudiados fue posible identificar todos los tipos foliculares y determinar la presencia de distintos grados de atresia correspondientes a folículos en diferentes etapas de desarrollo. Los folículos en crecimiento (secundarios atrésicos se caracterizaron por el engrosamiento de la zona pelúcida, la vacuolización citoplasmática de células foliculares, picnosis, vacuolización de la teca interna y tejido conectivo de sustitución. Con respecto a las estructuras consideradas como cuerpos lúteos, pudieron establecerse y caracterizarse tres grados de desarrollo de los mismos (inicial, medio y maduro así como determinarse diferentes estadíos de regresión o atresia. Todos los ovarios del coipo contuvieron cuerpos lúteos accesorios. Los mismos se diferenciaron de los verdaderos por su menor tamaño y la persistencia de un remanente ovocitario con una zona pelúcida degenerada. El diámetro medio de estas estructuras fue de 273.44 ± 78.22 mm. Las observaciones presentadas en este trabajo indican que el ovario de coipos sexualmente maduros es semejante al de otros mamíferos como la chinchilla (Chinchilla laniger, el cobayo (Cavia sp., la casiragua (Proechimys guairae, el carpincho (Hydrochoerus hydrochaeris, la mara (Dolichotis patagonum, el aguti (Dasyprocta aguti, el puercoespín africano austral (Hystrix africaeaustralis y el puercoespín africano común (Atherurus africanus. In the present investigation mature females of coypu (Myocastor coypus were used to determine the anatomic and histomorphologic features of the ovaries. As in all mammals, the ovary was suspended from the dorsal wall of the peritoneal cavity by the mesovarium. In the studied animals, the mesovarium did not form a bursa. The ovary of the coypu is similar to the ovary of other adult hystricomorph rodents: it

  5. Report on ticks collected in the Southeast and Mid-West regions of Brazil: analyzing the potential transmission of tick-borne pathogens to man

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    Figueiredo Luiz Tadeu Moraes

    1999-01-01

    Full Text Available Specimens of ticks were collected in 1993, 1996, 1997, and 1998, mostly from wild and domestic animals in the Southeast and Mid-West regions of Brazil. Nine species of Amblyommidae were identified: Anocentor nitens, Amblyomma cajennense, Amblyomma ovale, Amblyomma fulvum, Amblyomma striatum, Amblyomma rotundatum, Boophilus microplus, Boophilus annulatus, and Rhipicephalus sanguineus. The potential of these tick species as transmitters of pathogens to man was analyzed. A Flaviviridade Flavivirus was isolated from Amblyomma cajennense specimens collected from a sick capybara (Hydrochaeris hydrochaeris. Amblyomma cajennense is the main transmitter of Rickettsia rickettsii (=R. rickettsi, the causative agent of spotted fever in Brazil. Wild mammals, mainly capybaras and deer, infested by ticks and living in close contact with cattle, horses and dogs, offer the risk of transmission of wild zoonosis to these domestic animals and to man.

  6. Ticks (Acari: Ixodidae on wild animals from the Porto-Primavera Hydroelectric power station area, Brazil

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    Marcelo B Labruna

    2002-12-01

    Full Text Available From June 2000 to June 2001, a total of 741 ticks were collected from 51 free-living wild animals captured at the Porto-Primavera Hydroelectric power station area, located alongside an approximately 180 km course of the Paraná river, between the states of São Paulo and Mato Grosso do Sul, comprising 9 species of 3 genera: Ambly-omma (7 species, Boophilus (1 and Anocentor (1. A total of 421 immature Amblyomma ticks were reared in laboratory until the adult stage, allowing identification of the species. A. cajennense was the most frequent tick species (mostly immature stages collected on 9 host species: Myrmecophaga tridactyla, Tamandua tetradactyla,Cerdocyon thous, Puma concolor,Tayassu tajacu, Mazama gouazoubira,Hydrochaeris hydrochaeris,Alouatta caraya, Cebus apella. Other tick species were less common, generally restricted to certain host taxa.

  7. AcEST: DK952626 [AcEST

    Lifescience Database Archive (English)

    Full Text Available TST38A01NGRL0014_J18 551 Adiantum capillus-veneris mRNA. clone: TST38A01NGRL0014_J18. 5' end seq ... osiga brevicollis... 34 5.9 tr|Q99NK1|Q99NK1_HYDHY Tyrosinase ... (Fragment) OS=Hydrochoerus hyd... 33 7.7 tr|B5H7A0 ... protein OS=Strep... 33 7.7 tr|A6MN58|A6MN58_EPTFU Tyrosinase ... (Fragment) OS=Eptesicus fuscus... 33 7.7 tr|Q5G686 ...

  8. Considerações Paleoecológicas sobre os Notoungulados da Formação Tremembé,Bacia de Taubaté (São Paulo, Brasil.

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    Diogo Jorge de Melo

    2007-07-01

    Full Text Available Notoungulates were recovered from bentonitic clays of the Tremembé Formation (Taubaté Basin.Two families, three genres and two species are known so far: Leontinidae (Taubatherium paulacoutoi and ?Ancylocoelus and Notohippidae (Rhychippus brasiliensis. Analyzing the paleobiology data of this group and the geological context of the basin together, we assume that leontinids inhabited lake’s margin,occupy a niche similar to the capybara (Hydrochoerus, having amphibian habit and feeding on plants like Pteridophyta, Cyperaceae, Typhaceae, aquatic plants and with Gramineae possibilities. Although notohippids seem to forest dwellers, they probably supported selective habits, feeding on fruits, young leaves and buds.

  9. La fauna de la Orinoquia

    OpenAIRE

    THOMAS R. DEFLER

    1998-01-01

    La típica fauna orinoquense, está representada en la literatura y la tradición por los animales que han sido más evidentes al ojo o al oído humanos, o los que con mayor frecuencia figuran en los cuentos, leyendas y temores de la gente, o aquellos que son el blanco más frecuente de. la caza para consumo. Los más conocidos y fácilmente observados en los Llanos Orientales incluyen el venado sabanero |(Odocoileusvirginianus), el chigüiro(Hydróchaeris hydrochaeris), y la corocora roja |(Eudo...

  10. Mamíferos não-voadores do campus "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, Brasil Non-volant mammals of campus "Luiz de Queiroz", University of São Paulo, Piracicaba, Brazil

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    Carla Gheler-Costa

    2002-12-01

    Full Text Available The remaining portion of the Atlantic Forest within the State of Sao Paulo is highly fragmented and most of the remainders are wrapped up in an essentially agricultural mosaic. This study aims at the local surveying of non-volant mammals, including their distribution and relative abundance within the human-altered environments of campus "Luiz de Queiroz", University of Sao Paulo, Piracicaba, São Paulo State, Brazil, an urbanized area bordered by two highways and the Piracicaba River. The landscape of the study area is characterized by a mosaic of small forest fragments surrounded by pastures, agriculture, and planted forests. Small mammals were captured from February to October, 2001, with an effort of 7056 day-traps, sampling the most representative environments of the campus: planted Eucalyptus (L'Héritier and Pinus (Shaw forests, native forest fragment, meadow, rubber tree (Hevea sp. plantation, agriculture and pasture area. Occurrence of medium and large frame mammals was recorded daily (morning and afternoon from November of 2000 to October of 2001 along a trail set up to merge the studied environments. Sixteen species of non-volant mammals were recorded, ten of medium or big body-size, and six of small body-size. Capybara (Hydrochaeris hydrochaeris (Linnaeus, 1766 and coati (Nasua nasua (Linnaeus, 1766 were the most abundant species.

  11. Ticks infesting wildlife species in northeastern Brazil with new host and locality records.

    Science.gov (United States)

    Dantas-Torres, Filipe; Siqueira, Daniel B; Rameh-De-Albuquerque, Luciana C; Da Silva E Souza, Denisson; Zanotti, Alexandre P; Ferreira, Débora R A; Martins, Thiago F; De Senna, Michelle B; Wagner, Paulo G C; Da Silva, Marcio A; Marvulo, Maria F V; Labruna, Marcelo B

    2010-11-01

    From September 2008 to March 2010, 397 ticks (315 larvae, 33 nymphs, 23 females, and 26 males) were collected from captive and free-living wildlife species in northeastern Brazil. Six tick species were identified, including Amblyomma auricularium (Conil) on Tamandua tetradactyla (L.), Amblyomma dubitatum Neumann on Hydrochaeris hydrochaeris (L.), Nectomys rattus (Pelzen) and T. tetradactyla, Amblyomma parvum Aragão on T. tetradactyla, Amblyomma rotundatum Koch on Boa constrictor L., Chelonoidis carbonaria (Spix), Kinosternon scorpioides (L.) and Rhinella jimi (Stevaux), Amblyomma oarium Koch on Bradypus variegatus Schinz, and Rhipicephalus sanguineus (Latreille) on Lycalopex vetulus (Lund). Nectomys rattus and T. tetradactyla are new hosts for A. dubitatum. This study extends the known distribution ofA. dubitatum in South America and provides evidence that its geographical range has been underestimated because of the lack of research. Four (A. dubitatum, A. parvum, A. rotundatum, and R. sanguineus) of six tick species identified in this study have previously been found on humans in South America, some of them being potentially involved in the transmission of pathogens of zoonotic concern. PMID:21175080

  12. PULMONARY ARTERIAL DISEASE ASSOCIATED WITH RIGHT-SIDED CARDIAC HYPERTROPHY AND CONGESTIVE HEART FAILURE IN ZOO MAMMALS HOUSED AT 2,100 M ABOVE SEA LEVEL.

    Science.gov (United States)

    Juan-Sallés, Carles; Martínez, Liliana Sofía; Rosas-Rosas, Arely G; Parás, Alberto; Martínez, Osvaldo; Hernández, Alejandra; Garner, Michael M

    2015-12-01

    Subacute and chronic mountain sickness of humans and the related brisket disease of cattle are characterized by right-sided congestive heart failure in individuals living at high altitudes as a result of sustained hypoxic pulmonary hypertension. Adaptations to high altitude and disease resistance vary among species, breeds, and individuals. The authors conducted a retrospective survey of right-sided cardiac hypertrophy associated with pulmonary arterial hypertrophy or arteriosclerosis in zoo mammals housed at Africam Safari (Puebla, México), which is located at 2,100 m above sea level. Seventeen animals with detailed pathology records matched the study criterion. Included were 10 maras (Dolichotis patagonum), 2 cotton-top tamarins (Saguinus oedipus oedipus), 2 capybaras (Hydrochaeris hydrochaeris), and 1 case each of Bennet's wallaby (Macropus rufogriseus), nilgai antelope (Boselaphus tragocamelus), and scimitar-horned oryx (Oryx dammah). All had right-sided cardiac hypertrophy and a variety of arterial lesions restricted to the pulmonary circulation and causing arterial thickening with narrowing of the arterial lumen. Arterial lesions most often consisted of medial hypertrophy or hyperplasia of small and medium-sized pulmonary arteries. All maras also had single or multiple elevated plaques in the pulmonary arterial trunk consisting of fibrosis, accompanied by chondroid metaplasia in some cases. Both antelopes were juvenile and died with right-sided congestive heart failure associated with severe pulmonary arterial lesions. To the authors' knowledge, this is the first description of cardiac and pulmonary arterial disease in zoo mammals housed at high altitudes. PMID:26667539

  13. TECNOLOGÍA Y SUBSISTENCIA EN EL SITIO ARQUEOLÓGICO CERRO TAPERA VÁZQUEZ (PARQUE NACIONAL PRE-DELTA, REPÚBLICA ARGENTINA

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    Mariano Bonomo

    2014-10-01

    Full Text Available In this paper the results of the studies carried out on ceramic and bone materials recorded at Cerro Tapera Vázquez site (Argentinean Northeast are presented. Taxonomic, anatomic and taphonomic studies of bone assemblages and technological-decorative analysis and refitting of pottery were undertaken. The site is located on a mound next to El Ceibo Creek, where 16 m2 were excavated in 2008. Abundant smooth, incised and modeled pottery (handles and zoomorphic appendages and numerous bones remains of Myocastor coypus (most frequent taxon, Blastocerus dichotomus, Ozotoceros bezoarticus, Cavia aperea, Leopardus geoffroyi, Lycalopex gymnocercus, Hydrochaeris hydrochaeris, birds and fish (Siluriformes and Characiformes were recorded. Except Cavia aperea rodent and Dusicyon gimnocercus fox, all taxa show evidence of anthropic modification (cut marks, fresh fractures and burning. Two radiocarbon dates were obtained: 650 and 520 yrs. BP. The results reached in this study lead to the conclusion that the pre-Hispanic populations that occupied Cerro Tapera Vázquez by the end of the Late Holocene were riverine canoe peoples, with complex ceramic technology and subsistence based on hunting of coypu, capybara and cervids, fishing and small-scale horticulture.

  14. Notas sôbre a evolução do virus vacínico em animais silvestres da fauna brasileira

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    Cicero Alves Moreira

    1956-06-01

    Full Text Available A note on the evolution of cow-pox virus in wild animals of Brazilian fauna. We have tried the sensibility of wild animals of Brazilian fauna to the cow-pox virus. The following specimens were submitted to experiences: Procyon cancrivorus, Hydrochoerus capybara, Cavea aperea, Coendu villosus, Didelphis aurita, Bradypus tridactylus, Euphractus sexcintus, Tamandua tetradactylus, Nasua narica, Dasyprocta aguti and Testudo tabulata. In all these animals, - excepting Bradypus tridactylus - we have obtained an infection with incubation (five days, aspect and duration similar to cow-pox of the laboratorial animals (calf and rabbit. In the Bradypus tridactylus howewer, the incubation was very long. Only after 30 days of inoculation we verified the infection with the formation of vesiculae and postulae.

  15. Mamíferos do município de Fênix, Paraná, Brasil: etnozoologia e conservação Mammals of the municipality of Fênix, Paraná, Brazil: ethnozoology and conservation

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    Fabiana Rocha-Mendes

    2005-12-01

    Full Text Available Com base na abordagem etnozoológica foram resgatadas informações históricas e atuais sobre a mastofauna do município de Fênix, mesorregião centro-ocidental do estado do Paraná, sul do Brasil. Para tanto, no ano de 2004, foram realizadas entrevistas com 19 moradores locais por meio de uma conversa informal que tinham por objetivo o preenchimento de um questionário básico e a apresentação de fotografias da fauna potencial da região. Como resultado, foram registradas 39 espécies de mamíferos, sendo que destas, pelo menos seis são novos registros para a área. Informações obtidas em relação à caça indicam que esta atividade, muito comum no passado, ainda é presente, inclusive em unidades de conservação, como o Parque Estadual Vila Rica do Espírito Santo. As espécies que sofreram e sofrem maior pressão de caça são as mesmas citadas para outras partes do neotrópico. Atualmente, Hydrochaeris hydrochaeris (Linnaeus, 1766 (Hydrochaeridae é a espécie mais procurada, dada à facilidade de encontrá-la em diversas áreas naturais ou parcialmente antropizadas do município. No que se refere à predação causada por animais silvestres sobre animais domésticos, quase 80% dos entrevistados relataram ter sofrido perdas em suas criações, principalmente galinhas, resultantes de ataques de carnívoros de médio porte. Dados sobre alterações temporais na composição da mastofauna também foram obtidos junto aos entrevistados, como a extinção local de alguns mamíferos de grande porte (Panthera onca (Linnaeus, 1758 (Felidae, Tapirus terrestris (Linnaeus, 1758 (Tapiridae e Tayassu pecari (Link, 1795 (Tayassuidae e o aumento populacional de Cebus nigritus (Goldfuss, 1809 (Cebidae e de Nasua nasua (Linnaeus 1766 (Procyonidae, supostamente relacionado ao consumo de plantações como o milho.Based on an ethnozoological approach we obtained historical and present information on the mammalian fauna of the municipality of Fênix

  16. COMERCIO DE FAUNA SILVESTRE EN COLOMBIA WILDLIFE TRADE IN COLOMBIA

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    Néstor Javier Mancera Rodríguez

    2008-12-01

    Full Text Available Este trabajo ofrece un panorama sobre las actividades relacionadas con el comercio de bienes derivados de las especies de fauna silvestre en Colombia, abordando el tema desde el desarrollo que ha tenido su actividad productiva, el aprovechamiento extractivo, así como la dinámica de su comercio legal e ilegal en el país y el desarrollo y promoción de alternativas productivas sustentadas en su aprovechamiento. Se analizó la información secundaria de entidades como el Ministerio de Ambiente, Vivienda y Desarrollo Territorial, las Corporaciones Autónomas Regionales y Autoridades Ambientales Urbanas, el Instituto Colombiano de Desarrollo Rural-INCODER, las Autoridades Policiales, los Institutos de Investigación, el Departamento Administrativo Nacional de Estadística, la Dirección de Impuestos y Aduanas Nacionales-DIAN, el Ministerio de Comercio, Industria y Turismo, y PROEXPORT. entre otras. En Colombia, el comercio de especies de fauna silvestre está centrado principalmente en la extracción de ejemplares de forma ilegal, lo cual ha generado desequilibrios en las poblaciones naturales y ha repercutido en el deterioro de la dinámica de los ecosistemas. El comercio legal de fauna silvestre se basa en la producción de unas pocas especies entre las que se destacan la babilla (Caiman crocodilus, el chigüiro (Hydrochaeris hydrochaeris, cerca de 200 especies de peces ornamentales y en menor medida el lobo pollero (Tupinambis nigropunctatus, la iguana (Iguana iguana, la boa (Boa constrictor, escarabajos (Dynastes hercules y mariposas. En el país no se tiene información exacta sobre el número de incautaciones realizadas en los operativos de control al tráfico ilegal de fauna, y no existe un conocimiento de la dinámica de este comercio ilegal.This work offers a current view on the activities related to the trade of derived from the wildlife species in Colombia, approaching the topic from the development that has had its productive activity

  17. Prey preferences of the jaguar Panthera onca reflect the post-Pleistocene demise of large prey.

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    Matt W Hayward

    2016-01-01

    Full Text Available Documenting the impacts of the Pleistocene megafaunal extinctions on predator-prey interactions is a challenge because of the incomplete fossil record and depauperate extant community structure. We used a comparative ecological approach to investigate whether the existing prey preference patterns of jaguars Panthera onca were potentially affected by the Pleistocene extinctions in the Americas compared with large felids in Africa and Asia. We reviewed the literature and found 25 studies reporting 3214 jaguar kills recorded throughout the species’ distribution. We found that jaguars significantly preferred capybara Hydrochaeris hydrochaeris and giant anteater Myrmecophaga tridactyla, and avoided agoutis, carnivorans, primates, black-eared opossum Didelphis marsupialis and tapirs. Generalised linear models showed that jaguars select prey primarily based on socio-ecological and behavioural traits (abundance and herd size, rather than morphological characteristics (body size. Nonetheless, their accessible prey weight range was 6-60 kg, preferred prey weight range was 45-85 kg, and mean mass of significantly preferred prey was 32 ± 13 kg leading to a predator to prey body mass ratio of 1:0.53, which is much less than that of other solitary felids. Compared with other large, solitary felids, jaguars have an unusual predator to prey body mass ratio, show limited effect of prey morphology as a driver of prey selection, lack evidence of optimal foraging beyond their preferred prey, and an absence of preferentially hunting on Cetartiodactyla herbivores. These features, coupled with the reduction in jaguar body mass since the Pleistocene, suggest that the loss of larger potential prey items within the preferred and accessible weight ranges at the end-Pleistocene still affects jaguar predatory behaviour. It may be that jaguars survived this mass extinction event by preferentially preying on relatively small species.

  18. [Seasonal evaluation of mammal species richness and abundance in the "Mário Viana" municipal reserve, Mato Grosso, Brasil].

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    Rocha, Ednaldo Cândido; Silva, Elias; Martins, Sebastião Venâncio; Barreto, Francisco Cândido Cardoso

    2006-09-01

    We evaluated seasonal species presence and richness, and abundance of medium and large sized mammalian terrestrial fauna in the "Mário Viana" Municipal Biological Reserve, Nova Xavantina, Mato Grosso, Brazil. During 2001, two monthly visits were made to an established transect, 2,820 m in length. Records of 22 mammal species were obtained and individual footprint sequences quantified for seasonal calculation of species richness and relative abundance index (x footprints/km traveled). All 22 species occurred during the rainy season, but only 18 during the dry season. Pseudalopex vetulus (Lund, 1842) (hoary fox), Eira barbara (Linnaeus, 1758) (tayra), Puma concolor (Linnaeus, 1771) (cougar) and Hydrochaeris hydrochaeris (Linnaeus, 1766) (capybara) were only registered during the rainy season. The species diversity estimated using the Jackknife procedure in the dry season (19.83, CI = 2.73) was smaller than in the rainy season (25.67, CI = 3.43). Among the 18 species common in the two seasons, only four presented significantly different abundance indexes: Dasypus novemcinctus Linnaeus, 1758 (nine-banded armadillo), Euphractus sexcinctus (Linnaeus, 1758) (six-banded armadillo), Dasyprocta azarae Lichtenstein, 1823 (Azara's Agouti) and Tapirus terrestris (Linnaeus, 1758) (tapir). On the other hand, Priodontes maximus (Kerr, 1792) (giant armadillo) and Leopardus pardalis (Linnaeus, 1758) (ocelot) had identical abundance index over the two seasons. Distribution of species abundance in the sampled area followed the expected pattern for communities in equilibrium, especially in the rainy season, suggesting that the environment still maintains good characteristics for mammal conservation. The present study shows that the reserve, although only 470 ha in size, plays an important role for conservation of mastofauna of the area as a refuge in an environment full of anthropic influence (mainly cattle breeding in exotic pasture). PMID:18491629

  19. INDICADORES HEMATOLÓGICOS Y HEMOQUÍMICOS DE Dasyprocta fuliginosa (GUARA, GUATÍN O ÑEQUE EN CAUTIVERIO

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    Lizcano L.

    2006-11-01

    Full Text Available Los indicadores hematológicos y hemoquímicos de la Dasyprocta fuliginosa (guara, guatín o ñeque en cautiverio se realizaron en el municipio de Florencia, Caquetá (Colombia, pretendiendo iniciar una referencia de datos para estudios de conservación, manejo productivo y clínico de la especie. Fueron utilizados diez animales machos en dos estados de desarrollo (juveniles y adultos. Para hemograma se determinaron hematocrito (técnica de microhematocrito, hemoglobina (método espectrofotométrico de la cianometahemoglobina, recuento total de leucocitos (técnica del hemocitómetro y recuento diferencial de leucocitos (frotis sanguíneo coloreado, y en hemoquímica se determinó glicemia (método GOD-PAP, colesterol (método CHOD-PAP, triglicéridos (método GPO-PAP, proteínas totales (método Biuret y creatinina (método colorimétrico simétrico. Los valores promedios para los parámetros evaluados en hemograma fueron: hematocrito 49,9 ± 2,9%; hemoglobina 16,5 ± 1,1 g/dl; recuento leucocitario total 6650 ± 1276,9 leucocitos/mm3; neutrófilos 17,7 ± 12,9%; linfocitos 77,6 ± 12,4%, y eosinófilos 5,1 ± 3,2 %. Para hemoquímica los resultados fueron: glicemia 249,9 ± 47,1 mg/dl; colesterol 108,1 ± 20,1 mg/dl; triglicéridos 108,1 ± 20,1 mg/dl, proteínas totales 5,7 ± 0,6 g/dl, y creatinina 1,7 ± 0,2 mg/dl. En algunos individuos los valores se desviaron significativamente del promedio, debiéndose tal vez a circunstancias fisiológicas e individuales (estrés, respuesta a mecanismos externos o por lesiones que padecían días antes a la toma de la muestra. Los indicadores del hemograma estuvieron en promedios similares a los de otros roedores del piedemonte amazónico: Proechimys sp., Agouti paca e Hydrochaeris hydrochaeris, al igual que en los hemoquímicos, salvo en glicemia, en donde se encontraron mayores valores para Dasyprocta fuliginosa, debido posiblemente al régimen alimenticio que se basaba sobre todo en frutas y

  20. Le mini-élevage, son développement villageoiset l'action de BEDIM

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    Jacques Hardouin

    1997-01-01

    Full Text Available Minilivestock, village development and the role of BEDIM.Minilivestock encompasses all animals of small site, and little-known in terras of production but usable as food, feed or revenues if not eaten. Sustainable breeding becomes possible, and should progressively replace uncontrolled gathering in the wild. Amongst vertebrates, an important meat supply is based on edible rodents like Thryonomys, Cricetomys, Xerus, Atherurus, Tenrec; Hydrochoerus, Dasyprocta, Myocastor, Capromys, Dolichotis, Agouti, etc. The saine applies to the guinea-pig Cavia porcellus and to frogs. Invertebrates farming is also practised through breeding of maggots, termites, butterflies (pupae and adults for consumption or sale; giant snails are also highly appreciated in many African countries. Minilivestock development is usually a back-yard activity, hence its interest as it relies on local species, substrates and raw materials for infrastructure. The demand for minilivestock product is high but there is still reluctance often from the official authorities, unfortunately. However minilivestock is not an utopia, and a country like Papua-New-Guinea, which bas officially adopted minilivestock production as a tool to help to develop remote villages, is an excellent example of success

  1. Ixodídeos em animais silvestres na Região do Planalto Serrano, Estado de Santa Catarina, Brasil

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    Marcia Sangaletti Lavina

    2015-10-01

    Full Text Available O conhecimento da fauna de ixodídeos, bem como a potencialidade como transmissores de patógenos aos seus hospedeiros e em alguns casos aos humanos, é de grande importância para o estabelecimento de programas de saúde pública e vigilância epidemiológica. Com o objetivo de identificar ixodídeos de mamíferos silvestres no Planalto Serrano de Santa Catarina foram examinados carrapatos, coletados ou recebidos no Laboratório de Parasitologia e Doenças Parasitárias do Centro de Ciências Agroveterinárias – CAV/UDESC no período 2001 a 2011. Os ixodídeos eram provenientes de animais silvestres que passaram pelo processo de triagem do Hospital de Clínicas Veterinárias (HCV do CAV e de animais encontrados mortos em rodovias do Estado. De acordo com as chaves dicotômicas específicas identificou-se Amblyomma aureolatum coletados em Pseudalopex gymnocercus, Lycalopex gymnocercus, Leopardus pardalis, Cerdocyon thous, Leopardus tigrinus, Puma concolor e Bufo sp.; A. dubitatum em Hydrochoerus hydrochoeris; A. rotundatum em Puma concolor e Bohtrops sp.; A. ovale em Bufo sp.; e Rhipicephalus microplus em Mazama gouazoubira. Foi identificado um exemplar de A. longirostre que se encontrava em uma residência da área urbana do município de Lages. As espécies A. rotundatum em Bohtrops sp. e em Puma concolor; e A. longirostre, encontrada no ambiente, foram relatadas pela primeira vez no estado de Santa Catarina, Brasil. 

  2. Roadkills of vertebrates in Venezuela Vertebrados mortos em estradas na Venezuela

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    Jan Pinowski

    2005-03-01

    Full Text Available This paper presents an analysis of vertebrate roadkills in five different habitats of tropical South America. Observations of vertebrate roadkills were conducted in 1978, on a 572 km road between Caracas and Mantecal/Apure in Venezuela, during the rainy season (June-October. During five passages on this route, which includes five distinct habitats, 79 vertebrate carcasses - mammals and reptiles - were found. If we assume that the carcasses remain for two days on the road, vehicles can be expected to strike 350 spectacled caimans Caiman crocodilus Linnaeus, 1758 (Alligatoridae during the rainy season alone. Similar calculations for other species yield 313 snakes and lizards, 294 opossums Didelphis marsupialis Linnaeus, 1758 (Didelphidae, 220 crab-eating foxes Cerdocyon thous (Linnaeus, 1776 (Canidae, 129 tamanduas Tamandua tetradactyla (Linnaeus, 1758 (Myrmecophagidae, 55 capybaras Hydrochaerus hydrochaeris (Linnaeus, 1766 (Hydrochaeridae and 37 eastern cottontails Sylvilagus floridanus Allen, 1890 (Leporidae. Numerous papers have been published on vertebrates killed by vehicles on roads in Europe, North America, and Australia, and several papers are available regarding vertebrate roadkills in Africa and Asia. From South America there are several papers on vertebrates, birds, and mammals, whereas from Venezuela only one and it deals with iguanas (Iguana iguana Linnaeus, 1758, Iguanidae.Este trabalho apresenta uma análise de vertebrados mortos em estrada em cinco habitats tropicais diferentes na América do Sul. As observações dos vertebrados mortos em estrada foram feitas em 1978, a 572 km da rodovia entre Caracas e Mantecal/Apure na Venezuela, durante a estação das chuvas (junho-outubro. Durante cinco passagens nesta rota, a qual inclui cinco habitats diferentes, foram encontradas 79 carcaças de vertebrados - répteis e mamíferos. Assumindo que as carcaças permaneçam por dois dias na estrada, é esperado que veículos matem 350

  3. Utilização dos recursos naturais por comunidades humanas do Parque Ecoturístico do Guamá, Belém, Pará Utilization of natural resources by the human communities of the Guamá Ecotouristic Park, Belém, Pará

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    Ana Sílvia Sardinha Ribeiro

    2007-06-01

    Full Text Available O trabalho apresenta dados sobre o uso dos recursos naturais por populações humanas em pequenas comunidades (vilas localizadas no entorno (n = 6 e no interior (n = 1 do Parque Ecoturístico do Guamá (PEG, visando avaliar os impactos sobre a fauna e flora local, ante a implantação de um projeto de infra-estrutura rodoviária local. A metodologia consistiu da aplicação de dois modelos de questionários. Um direcionado a pessoas-chave, como: moradores mais antigos, presidentes de associações, agentes de saúde, etc, e o outro aplicado aleatoriamente aos adultos locais. Buscou-se atingir pelo menos 50% das famílias das pequenas localidades (11 famílias. Em todos os casos é realizado o extrativismo da fauna e flora, principalmente com o objetivo de subsistência. As espécies mais caçadas foram Agouti paca,Dasyprocta agouti,Nasua nasua, Euphractus sexcintus e Hydrochaeris hydrochaeris. A complementação da renda familiar através do comércio de caça sob encomenda é realizada em todas as comunidades estudadas. Frutíferas como Euterpe oleracea Mart., Musa spp e Theobroma cacao foram encontradas em 100% das comunidades (n=7. Plantas medicinais são rotineiramente cultivadas e empregadas. As espécies madeireiras exploradas são utilizadas com o objetivo de produção de carvão, construção de casas e de meios de transporte, predominando o Inga edulis, Virola surinamensis (Rol. Warb e Simaruba amara (Aubl.. O trabalho discute os resultados sob o aspecto da implantação do projeto viário, oferecendo recomendações para a minimização dos impactos do mesmo sobre a fauna, a flora e o modo tradicional de vida das comunidades.This work shows data about the use of natural resources by the human population located in (n=1 and around (n=6 the Guamá Ecotouristic Park (GEP, in order to evaluate the impact on the local fauna and flora in view of the project for constructing a road through the park. The methodology utilized in this community

  4. Combate ao Desmodus rotundus rotundus (E. Geoffroy,1810 na região cárstica de Cordisburgo e Curvelo, Minas Gerais

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    Almeida E.O.

    2002-01-01

    Full Text Available Com o objetivo de avaliar em uma região cárstica o tipo de refúgio, as espécies de morcegos, a população de animais domésticos, as associações interespecíficas nas coabitações com outros mamíferos silvestres suscetíveis à raiva e a eficácia da warfarina aplicada no dorso do Desmodus rotundus rotundus foi realizada uma pesquisa de maio de 1998 a março de 2000, nos municípios de Cordisburgo e Curvelo, Minas Gerais. Em 49 refúgios vistoriados, 29 naturais e 20 artificiais, localizados em 14 propriedades, encontrou-se o Desmodus rotundus rotundus em 18 abrigos naturais. Destes, 17 eram cavernas formadas pela dissolução ou abatimento de rocha calcária, típica do carste, e um era túnel escavado na terra pela ação das águas de um rio. As características geomorfológicas e de localização espacial foram registradas com base nas coordenadas geográficas, obtidas com auxílio de um sensor geográfico de posição. Nesses abrigos foram capturados e identificados 1457 morcegos de 14 espécies, sendo 640 Glossophaga soricina (Pallas, 1766, 566 Desmodus rotundus (E. Geoffroy, 1810, 73 Anoura geoffroyi (Gray 1838, 58 Trachops cirrhosus (Spix, 1823, 38 Diphylla ecaudata ecaudata (Spix, 1823, 23 Platyhrrinus lineatus (E. Geoffroy, 1810, 16 Lasiurus ega (Gervais, 1856, 14 Carollia perspicillata (Linnaeus, 1758, 13 Phyllostomus hastatus hastatus (Pallas, 1767, 9 Artibeus lituratus (Olfers, 1818, 3 Mimmon bennettii (Gray, 1838, 2 Myotis nigricans (Schinz, 1821, 1 Eptesicus brasiliensis (Desmarest, 1819 e 1 Pygoderma bilabiatum (Wagner, 1843. Não se conseguiu isolar ou detectar o vírus rábico no cérebro de 25 hematófagos selecionados e em 52 de outras espécies. A maioria desses abrigos também era usada por pacas (Agouti paca Linnaues, 1766, capivaras (Hydrochaeris hydrochaeris, Linnaues, 1766, guaxinins (Procyon cancrivorus, G. Cuvier, 1798 e raposas (Lycalopex vetulus, Lund, 1842 que são suscetíveis à raiva. Em 546 Desmodus

  5. Diagnóstico del tráfico ilegal y del manejo post decomiso de fauna silvestre en nueve corporaciones autónomas regionales de Colombia

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    Montenefgro Olga Lucía

    2007-12-01

    infraestructura que existe en los CAV de las corporaciones autónomas regionales de Colombia para definir el destino final de la fauna silvestre incautada, siendo tres las opciones de manejo: mantenimiento en cautiverio, retorno a la vida silvestre y eutanasia. Por tal razón esta investigación pretende realizar un diagnóstico de las especies decomisadas por algunas Corporaciones Autónomas Regionales, su uso, los procedimientos de liberaciones y reintroducciones que se llevan a cabo en los CAV centros de atención y valoración de fauna silvestre y la localización geográfica de las liberaciones. Esto con el fin de disminuir la presión que existe sobre las poblaciones de fauna silvestre y de esta forma realizar un uso sostenible de la biodiversidad de Colombia. En este trabajo se realiza un diagnóstico del tráfico ilegal de fauna silvestre en nueve corporaciones autónomas regionales de
    Colombia durante los años 2004 a 2006, así como también el manejo postdecomiso efectuado por cada
    corporación. La información fue suministrada por cada entidad mediante una encuesta y visitas a las corporaciones. Se registraron un total de 60.511 especímenes decomisados, dentro de los cuales 583 corresponden a pieles, 36.653 a huevos de iguana (Iguana iguana y tortuga y 23.178 a animales vivos. En cuanto
    a carne se tienen decomisos un total de 12.621 kg correspondientes a carne de chigüiro (Hydrochaerus
    hydrochaeris. Se observa que en la mayoría de corporaciones las especies con mayor número de decomisos fueron la Hicotea (Trachemys callirostris, el Perico real (Brotogeris jugularis y la ardilla (Sciurus sp.. El volumen de tráfico presentado en el periodo de 2004 a 2006 es alto con un total de 60.511 ejemplares decomisados. Si se compara con la información disponible para años anteriores (Procuraduría, 2006, en donde
    para el periodo abarcado entre los años 1996 y 2000 se decomisaron un total de 73.061 ejemplares correspondientes a 11 corporaciones aut