银川地区部分鸡场鸡白痢的流行病学调查

Epidemiological Investigation on Pullorum Disease in Some Henneries of Yinchuan City

为了解银川地区鸡白痢沙门氏菌病的感染现状,于2007—2009年间,随机选择不同鸡场和农户的鸡1702只,进行采血并分离血清,采用鸡白痢血清平板凝集试验进行检测。结果表明,1702份血清中,检出阳性血清110份,平均阳性率为6.46%。统计结果显示,该次调查中较大规模的鸡场鸡白痢的感染率小于小型养鸡场和农户(P<0.05);鸡白痢的感染率与鸡的品种、日龄、饲养方式无关。3年间,鸡白痢的感染率呈现递减趋势(P<0.05)。结合调查结果分析了发病原因,并提出了综合防治意见和措施。

In order to investigate current condition of pullorum disease infection in Yinehuan city, 1 702 chickens were selected randomly from different farms and households during 2007-2009. Their sera were separated and then detected by plate agglutination test （PAT）. The results showed that the average positive rate was 6.46 % （110/1702）. The statistical results showed that the infection rate in scale chicken farms was lower than that in small chicken farms and households （P〈0.05）. The infection rate did not have relationship with species, age, and breeding model. During this period, the infection rate gradually declined （P〈0.05）. The reasons were analyzed with the investigation results, and the advice and measures for integrated control were put forward.