An outbreak of cysticercosis in feedlot cattle.
An outbreak of cysticercosis in feedlot cattle.
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饲养场牛爆发囊尾蚴病。
DOI：
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发表时间：
1974
期刊：
影响因子：
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通讯作者：
N. McAninch
中科院分区：
文献类型：
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作者：
N. McAninch
牛囊尾蚴是人类牛带绦虫的幼虫期。细胞糜烂症表现为牛横纹肌中存在包囊（囊尾蚴）。这些囊肿在完全发育时可长6至9 mm，直径约5 mm，最常见于咬肌、心脏和横隔膜支柱，尽管在严重感染的尸体中可在骨骼肌中发现大量浓度。这种情况在加拿大并不常见;在1970-71财政年度，加拿大农业部动物卫生分支肉类检查司对13具尸体和307个部分进行了尸检，总共检查了350万具尸体（1）。在美国的一些大型饲养场已经记录了暴发（2）。由于大量牛感染了这种寄生虫，因此该病例的历史特别令人感兴趣。业主将被称为A. Z。在这份报告中。他在四个饲养场饲养牛，总容量约为一千头，其中大部分是去年秋天在安大略的各个社区和饲养场销售中购买的。
Introdutetion Cysticercus bovis is the larval stage of the human tapeworm Taenia saginata. Cyticerosis is manifested by presence of cysts (cysticerci) in the striated muscles of cattle. These cysts may be 6 to 9 mm in length by about 5 mm in diameter when fully developed and are most commonly found in the masseter muscles, heart and pillars of the diaphragm, although in heavily infested carcasses heavy concentration may be found in skeletal muscles. The condition is not observed frequently in Canada; in the fiscal year 1970-71, 13 carcasses and 307 portions were condemned on post-mortem inspection by the Meat Inspection Division of the Health of Animals Branch, Agriculture Canada, out of a total of 3.5 million carcasses inspected (1). Outbreaks have been recorded in some large feedlots in the United States (2). This case histoiy is of particular interest because of the large number of cattle infested with this parasite. The owner will be referred to as A.Z. in this report. He maintained cattle on four feedlots with a total capacity of about one thousand head, most of which had been purchased the previous fall at various community and feeder sales in Ontario.