Spontaneous poisoning by Ricinus communis leaves (Euphorbiaceae) in goats

Abstract

The aim of this study was to report the clinical and pathological aspects of an outbreak of poisoning by the ingestion of Ricinus communis leaves in a herd of goats at Pernambuco, northeastern Brazil. Within 3-5 hours after ingesting the sprouts and young shrubs of the plant, twenty Toggenburg female goats and two adults crossbred wethers presented acute neurological clinical signs, which were initially characterized by decreased locomotor activity that later evolved to severe ataxia, depression, incoordination and staggering gait. Four goat that died spontaneously were necropsied. Gross lesions were unspecific and consisted in focal areas of lungs edema, petechial hemorrhages in the epicardium and congestion and enlargement of liver. The contents of the rumen, reticulum and omasum were dry and contained leaves of the plant. Histologically there were no lesions in the CNS. In the liver, the main lesion consisted in cytoplasmic vacuolization and necrosis of hepatocytes. Eighteen goats recovered after a supportive therapy with activated charcoal, glycated isotonic solution, dexamethasone and vitamin B12. There is no specific therapy for poisoning by R. communis, however supportive and symptomatic treatments are recommended and should be based on the clinical signs.

Micotoxicose Pode Causar Aborto E Óbito Em Suino? – Discussão De Caso

“…A parte tóxica são as sementes, cujo princípio ativo é a ricina, no entanto as folhas também são tóxicas para bovinos, equinos e ovinos, contendo ricinina (ALBUQUERQUE et al,2014;BIANCHI et al,2018;BRITO et al,2019). Os principais sintomas da intoxicação são: anorexia, diarreia ou não, dor abdominal, gastroenterite hemorrágica; eczemas, dermatites, asma, conjuntivite, hipotermia, distúrbios musculares, hipotensão, depressão respiratória e vômitos em suínos (SINITOX, 2001;ALBUQUERQUE et al, 2014;BALTAR et al, 2017).…”