Van Halderen A, Green J R, Schneider D J
Veterinary Laboratory, Stellenbosch, Republic of South Africa.
J S Afr Vet Assoc. 1990 Mar;61(1):39-40.
An outbreak of suspected Phalaris staggers in South Africa is described. Approximately 40 out of 600 sheep that had been grazing for 3 weeks on a wheat stubble land heavily infested with Phalaris grass, were affected. Clinical signs included nervous tremors, ataxia and convulsions. New cases occurred even after removal from the affected pasture. The most prominent microscopic lesion seen in the 2 sheep autopsied, was an accumulation of intracytoplasmic brown pigment in the neurons of the brain.
本文描述了南非疑似发生的披碱草中毒疫情。在一片被披碱草严重侵染的小麦茬地上放牧3周的600只绵羊中，约40只受到影响。临床症状包括神经震颤、共济失调和惊厥。即使将羊从受影响的牧场转移后，仍有新病例出现。对2只羊进行尸检时，最显著的微观病变是大脑神经元胞质内棕色色素的积累。
