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Hepatic and renal lesions in free ranging black caimans (Melanosuchus niger) in the Brazilian Amazon for human consumption / Lesões hepáticas e renais em jacarés-açu (Melanosuchus niger) de vida livre na Amazônia brasileira destinados ao consumo humano

Cardoso, Adriana Maciel de Castro; Souza, Alex Junior Souza de; Menezes, Rodrigo Caldas; Souza, Natália Freitas de; Pereira, Washington Luiz Assunção; Tortelly, Rogério.
Acta Sci. vet.; 46: 1-5, 2018. ilus
Artigo em Português | VETINDEX | ID: vti-19185


Background: The black caiman (Melanosuchus niger), belongs to the order Crocodylia, family Alligatoridae. More than a hundred species of helminths, mainly trematodes and nematodes, parasitize crocodilians around the world and a considerable number of species of ascaris have been described in crocodilians. There are few descriptions of hepatic and renal diseases affecting M. niger, and no articles related to the histopathological aspects of this species were found. The aim of this study was to evaluate gross and microscopically the liver and kidneys of 100 specimens of Melanosuchus niger slaughtered in Reserva de Desenvolvimento Sustentável Mamirauá, from natural populations.Materials, Methods & Results: The capture of the alligators was performed during the night, by members of the community itself in the channels and lagoons of the Reserves lowland ecosystem. For the capture procedures, ties and harpoons were used and the animals were identified through the red glow of the eyes using the spot light lanterns. After being conducted to the slaughter area, the animals were submitted to the previous biometry to select which animals were appropriated for slaughter, they should measure between 2.10 m and 2.80 m. A total of 88 livers and 95 kidneys of M. niger of natural populations were analysed gross and microscopically, independently of gross lesions. The fragments collected for histopathological examination were approximately 0.5 cm thick and they were packed in appropriated identified containers with formalin 10% solution. The collection procedures were accompanied by field records for data recording. After fixation of the collected material, it were processes by habitual techniques for paraffin inclusion and hematoxylin-eosin staining. Grossly, none of the livers examined presented alterations and two kidneys presented parasitism.[...](AU)
Biblioteca responsável: BR68.1
Localização: BR68.1