Bains B S, MacKenzie M A, McKenzie R A
Aust Vet J. 1975 Mar;51(3):140-5. doi: 10.1111/j.1751-0813.1975.tb09438.x.
A syndrome characterised by bilateral paralysis and associated with degenerative changes in skeletal musculature, has been noted in adult breeder hens, and their progeny broilers, in a commercial poultry organisation in Queensland. Paralysis occurred between the ages of 24 to 63 weeks in broiler breeder hens and at approximately 6 weeks in the broiler chickens. Onset is slow, taking up to 2-3 days from the time leg weakness if first noticed until paralysis was complete. Other than the paralysis the birds appeared normal. Histopathological and experimental observations indicate that the muscular dystrophy is caused by a selenium deficiency. Supplementation of the diet with selenium at a level of 0.1 ppm completely alleviated the symptoms such that the birds may be returned to the mating pens.
在昆士兰一家商业家禽养殖场的成年种母鸡及其后代肉鸡中,发现了一种以双侧麻痹为特征并伴有骨骼肌退行性变化的综合征。肉种鸡在24至63周龄时出现麻痹,肉鸡约在6周龄时出现麻痹。发病缓慢,从首次发现腿部无力到完全麻痹需要2至3天时间。除了麻痹外,这些禽类看起来正常。组织病理学和实验观察表明,肌肉萎缩是由硒缺乏引起的。在日粮中添加0.1 ppm的硒可完全缓解症状,使禽类能够回到交配笼舍。