鸡传染性腺胃炎病毒(暂定名)的致病性

Pathogenicity of Infectious Proventriculitis Virus (Tentative Name) in Chickens

用暂定为鸡传染性腺胃炎病毒 ( IPV)的 ZJ971株 ,经口服、腹腔、泄殖腔、口服 -腹腔 -泄殖腔联合不同途径接种于 8日龄来航非免疫雏鸡 ,均可引起雏鸡感染发病 ;其中 ,以口服 -腹腔 -泄殖腔联合途径感染效果最佳 ,腹腔途径次之。感染雏鸡生长阻滞、体重增长缓慢 ;剖检眼观病变主要以腺胃重量增加 ,腺胃指数增大 ,胸腺、法氏囊萎缩为特征 ;病理组织学变化主要以萎缩性胃炎、法氏囊炎。

Eight day old Leghorn chickens were respectively inoculated with 1 mL of infectious proventriculitis virus ZJ971 strain by oral route, intra abdominal route, rectal route, combined oral intra abdominal rectal route. The results indicated that the best route was the combined oral abdominal rectal, and the better route was intra abdominal cavity. The inoculated chickens appeared growth runt, increase of proventriculus index, and atrophy of thymus and bursa of Fabricius. Pathohistological characteristics of the infected chickens were the atrophied proventriculitis , bursalitis and catarrhal enteritis of duodenum. [WT5HZ]