Trampel D W, Goll F
College of Veterinary Medicine, Iowa State University, Ames 50011.
Avian Dis. 1994 Oct-Dec;38(4):905-9.
In September 1989, 17-day-old turkey poults were submitted to Iowa State University because of leg weakness and dehydration. These birds were commercial large white toms from a flock of 23,214. Lesions observed at necropsy included chondrodystrophy of the hock joints, clear fluid in hock joint spaces, valgus deformities and shortening of the tarsometatarsal bones, and curled toes. Mycoplasma iowae was isolated and identified from swabs of the air sac, cloaca, hock joint, and large intestine. Approximately 1.4% of the flock was culled between 2 and 8 weeks of age because of leg problems. M. iowae infection did not severely affect overall flock performance. Eighty-seven percent of the flock was marketed at 18 weeks of age with an average per turkey weight of 29.5 pounds.
1989年9月，17日龄的火鸡幼雏因腿部无力和脱水被送到爱荷华州立大学。这些火鸡是来自一个拥有23214只火鸡的鸡群中的商用大白公火鸡。尸检时观察到的病变包括跗关节软骨发育不良、跗关节间隙有清亮液体、跗跖骨外翻畸形和缩短以及脚趾卷曲。从气囊、泄殖腔、跗关节和大肠的拭子中分离并鉴定出了爱荷华支原体。由于腿部问题，该鸡群中约1.4%的火鸡在2至8周龄时被淘汰。爱荷华支原体感染并未严重影响鸡群的整体生产性能。该鸡群中有87%在18周龄时上市，每只火鸡平均体重为29.5磅。
