Hird D W, Christiansen K H, McBride M D, Bickford A A, Chin R P, Cooper G L, Meteyer C U, Charlton B R, Snipes K P, Danaye-Elmi C
Department of Epidemiology and Preventive Medicine, University of California, Davis 95616.
Avian Dis. 1991 Oct-Dec;35(4):723-7.
Six hundred fourteen meat turkeys were submitted for necropsy from 24 California ranches as part of the National Animal Health Monitoring System (NAHMS). Enteritis was the most frequent pathologic diagnosis in birds 18 days old or younger and the second most frequent diagnosis in birds 19-70 days old. Hemorrhagic enteritis was the most frequent diagnosis in birds aged 19-70 days. Tibial dyschondroplasia, bronchopneumonia, and ascaridiasis were ranked one through three in frequency of diagnoses in birds over 70 days of age. Salmonella was isolated from 71% of flocks tested, and Mycoplasma meleagridis was isolated from 33% of tested flocks over 70 days of age. Antibodies to several disease agents were detected, including hemorrhagic enteritis (100% of flocks over 70 days old) and Newcastle disease (63% of flocks over 70 days old).
作为国家动物健康监测系统（NAHMS）的一部分，从加利福尼亚州的24个牧场提交了614只肉用火鸡进行尸检。肠炎是18日龄及以下火鸡最常见的病理诊断，是19 - 70日龄火鸡第二常见的诊断。出血性肠炎是19 - 70日龄火鸡最常见的诊断。胫骨软骨发育不良、支气管肺炎和蛔虫病在70日龄以上火鸡的诊断频率中排名前三。从71%的检测鸡群中分离出沙门氏菌，从70日龄以上33%的检测鸡群中分离出火鸡支原体。检测到针对几种病原体的抗体，包括出血性肠炎（70日龄以上鸡群的100%）和新城疫（70日龄以上鸡群的63%）。
