Singh K C, Dhawedkar R G
Department of Veterinary Microbiology, College of Veterinary Sciences and Animal Husbandry, Jabalpur, India.
Trop Anim Health Prod. 1992 Nov;24(4):204-6. doi: 10.1007/BF02356745.
From a total of 32 poultry flocks, 1,176 serum samples were screened by the agar gel precipitation test and 314 (26.7%) were positive for antibodies to infectious bursal disease virus (IBDV). Prevalence of infection on the farms ranged from 8.88 to 53.84 per cent. The prevalence was highest (61.82%) in chickens between 7 and 11 weeks old and lowest (3.92%) in those above 22 weeks of age. In commercial broilers and layers 51.61 and 17.78% respectively were seropositive reactors. The high prevalence of subclinical IBD and its economic significance are discussed.
从总共32个家禽群中,采集了1176份血清样本,通过琼脂凝胶沉淀试验进行筛查,其中314份(26.7%)对传染性法氏囊病病毒(IBDV)抗体呈阳性。各养殖场的感染率在8.88%至53.84%之间。7至11周龄的鸡感染率最高(61.82%),22周龄以上的鸡感染率最低(3.92%)。在商品肉鸡和蛋鸡中,血清阳性反应率分别为51.61%和17.78%。文中讨论了亚临床传染性法氏囊病的高流行率及其经济意义。