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As folhas recém-colhidas de Jatropha gossypifolia (Euphorbiaceae) foram letais para ovinos em administrações únicas de 40g/kg. A dose de 5g/kg não causou sintomas de intoxicação; as doses intermediárias provocaram a morte de parte dos animais. A evolução da intoxicação foi de 6 a 22 dias. O quadro clínico-patológico nos ovinos experimentais era caracterizado por perturbações digestivas, pulmonares, cardíacas e ainda alterações regressivas leves somente evidenciadas através de exames histológicos, hepáticas e renais. Esses achados são semelhantes aos observados em experimentos com as sementes de Jatropha curcas em caprinos, ovinos e bezerros, e com os com os frutos e as folhas de Jatropha glauca e Jatropha aceroides em caprinos, realizados por outros autores. Estas comparações indicam que, independentemente das espécies, as folhas de Jatropha spp. devem conter compostos semelhantes aos encontrados nas sementes. Fresh green leaves of Jatropha gossypifolia (Euphorbiaceae) were lethal for sheep in single administrations of 40g/kg. The dose of 5g/kg did not cause poisoning, but intermediate doses caused death in part of the animals. The clinical course of poisoning was 6 to 22 days. The clinic and pathological picture in the experimental sheep was characterized by digestive, lung and heart disturbances, and also by slight microscopic liver and renal regressive alterations. These findings are similar to those observed in experiments with the seeds of Jatropha curcas in goats, sheep and calves, and with the fruits and leaves of Jatropha glauca and Jatropha aceroides in goats, performed by other authors. A comparison indicates that, independently of the plant species, the leaves of Jatropha spp. contain toxic compounds similar to those found in the seeds

Intoxicação experimental com as folhas de Jatropha gossypifolia (Euphorbiaceae) em ovinos