RESUMO
Approximately 70 feeder pigs developed ataxia and other signs of neuromuscular dysfunction. The ration fed the pigs was found to be contaminated with Cassia occidentalis seeds. Experimentally, other feeder pigs were fed this ration, and they developed ataxia and other signs of neuromuscular dysfunction within 6 to 8 weeks. In further experiments, feeder pigs fed diets containing 1%, 2%, or 4% ground cassia seeds also became intoxicated. Microscopically, diaphragmatic myopathy and pancreatic tissue necrosis were the principal pathologic findings.
Assuntos
Ração Animal/intoxicação , Ataxia/veterinária , Cassia , Doenças Neuromusculares/veterinária , Intoxicação por Plantas/veterinária , Plantas Medicinais , Doenças dos Suínos/etiologia , Animais , Ataxia/etiologia , Doenças Neuromusculares/etiologia , Doenças Neuromusculares/patologia , Intoxicação por Plantas/patologia , Suínos , Doenças dos Suínos/patologiaRESUMO
A paralytic disease in swine was observed on three farms located in the same geographical area of Georgia. Postmortem examinations revealed the paralysis to be related to spinal poliomalacia. Feed collected from two of the affected farms was used in a feeding study, and the paralytic condition was reproduced. In pigs from both the feeding trial and field cases, the poliomyelomalacia was characterized by focal, symmetrical lesions located in the cervical and lumbar intumescences. Selenium was detected in the feed at levels ranging from 19 to 24 ppm.