Data/hora: 10/06/2024 01:11:24

Provedor de dados: 	96	
País: 	Brazil	
Título: 	Histopathological aspects of the liver of free-living and farmed bullfrogs (Lithobates catesbeianus)	
Autores: 	Seixas Filho,José Teixeira de; Camargo Filho,Claudio Barberini; Pereira,Marcelo Maia; Martins,Ana Maria Cristina Rebello Pinto da Fonseca; Ribeiro Filho,Oswaldo Pinto; Mello,Sílvia Conceição Reis Pereira; Cassiano,Luara Lucena; Hipolito,Marcio.	
Data: 	2017-04-01	
Ano: 	2017	
Palavras-chave: 	Amphibians; Diet; Nutritional disorder; Pathology; Protein.	
Resumo: 	ABSTRACT The objective of this study was to compare the histopathological aspects of the liver of free-living and farmed bullfrogs (Lithobates catesbeianus). Thirty liver samples were collected from young and adult bullfrogs in the states of Minas Gerais and Rio de Janeiro, Brazil. Marked blood congestion and even hemorrhage and a large number of melanomacrophages were observed in most of the livers from free-living bullfrogs. Additionally, hepatocytes showed cytoplasmic eosinophilia and some showed nuclear hypertrophy and presence of microvesicular steatosis; small foci of infiltrates of mononuclear cells were observed in some samples, as well as a thicker capsule. In the farmed bullfrogs, cytoplasmic rarefaction was normal. Morphologically, unlike the livers of animals reared on farms, the livers of free-living animals did not show any evidence of protein-mineral deficiency, characterized by cytoplasmic vacuolation and a larger number of melanomacrophages, suggesting greater aggression to the liver parenchyma, probably due to environmental toxicity. Free-living bullfrogs feed on proteins of better biological value, derived from animals preyed in the natural environment.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000400275	
Editor: 	Sociedade Brasileira de Zootecnia	
Relação: 	10.1590/s1806-92902017000400001	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Zootecnia  v.46 n.4 2017	
Fonte: 	info:eu-repo/semantics/openAccess