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Intoxicação experimental com Trema micrantha (Ulmaceae) em caprinos

By Sandra Davi Traverso, Priscila Zlotowski, Marlise Germer, Claudio Estevao Farias da Cruz and David Driemeier

Abstract

Plantas hepatotóxicas são importantes causas de prejuízos em herbívoros no Brasil. Este trabalho relata uma hepatotoxicose aguda, ocorrida em 7 caprinos que morreram após a ingestão de folhas verdes de uma árvore de Trema micrantha que foi derrubada. Dois desses animais foram necropsiados e tecidos foram processados para exame histológico. O principal achado histológico foi observado no fígado, consistindo de necrose centrolobular a massiva, compatível com necrose hepática de origem tóxica. Todas as lesões observadas foram similares às descritas nas intoxicações experimentais por Trema micrantha em caprinos. Nenhuma outra planta hepatotóxica conhecida foi encontrada no local onde os caprinos permaneciam.Hepatotoxic plants are important cause of economical losses in farm animals in Brazil. This report concerns an outbreak of acute hepatic toxicosis, in which seven goats died after consumption of green leaves from a felled Trema micrantha tree. Two of these animals were necropsied and several tissues were processed for histological examination. Main histological finding was observed in the liver that showed centrilobular to massive necrosis consistent with an acute hepatic toxicosis. The overall picture was similar to those described in experimentally induced T. micrantha poisoning of goats. No additional known hepatotoxic plant was found in the paddock where the goats had been kept

Topics: Spontaneous poisoning, Intoxicação experimental, Trema micrantha, Trema micrantha, Goats, Caprinos
Year: 2010
OAI identifier: oai:agregador.ibict.br.PC_UFRGS:oai:www.lume.ufrgs.br:10183/20058
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