LINHARES, R. F. D.; LINHARES, Ricardo Franklin Dutra.
Resumo:
In the semi-arid region of Brazil there are problems with the intoxication of horses by ingestion of
toxic plants, such as Crotalaria retusa, which cause acute, chronic liver damage
triggering clinical signs of hepatic encephalopathy and death. Using four donkeys
adults, one as a control and administering three different concentrations of C seed,
retusa, being lg, 3g and 5g/kg of live weight of the animals. A guided liver biopsy was performed
by ultrasound every 30 days and evaluation of serum enzymes every seven days. a donkey that
administration of the highest concentration dose died 10 days after ingestion of the
seeds. In the histopathological exams of the biopsies, no alterations suggestive of
liver injury, but serum enzymes showed considerable changes. Probably
donkeys only present histological manifestations of liver diseases caused by alkaloids
pyrrolizidines from C. retusa when there is an intake greater than the administered doses, even
thus, there was an increase considered in the AST, GGT and FA enzymes researched, evidencing the
occurrence of liver disorder.