Surto de intoxicação por Senna occidentalis em bovinos em pastoreio / Outbreak of poisoning by Senna occidentalis in grazzing cattle

ABSTRACT

The Senna occidentalis poisoning occurs by the ingestion of seeds, leaves and stem of the plant, causing degenerative myopathy lesion. In addition, a several animals species are affected. Outbreaks are related with the ration consumption contaminated by seeds. However, few cases of spontaneous ingestion of the plant in fields were described. A rapid clinical disease is characterized by diarrhea, colic and tenesmus. Afterwards, muscular lesions and brownish-urine were revealed. In the end of the disease course, serum levels of creatine kinase (CK) and aspartate aminotransferase (AST) are increased. The aim of this study is to describe an outbreak of S. occidentalis poisoning in live cattle, in Triunfo, Rio Grande do Sul, Brazil, occurred in May 2008.[...]