鸡三种肿瘤病在广西的流行病学研究

A survey of the epizootiology of three neoplastic diseases in Guangxi province

对采自广西20个鸡场106群鸡的360只病、死鸡共1126份组织样品进行检测。结果马立克氏病的群阳性率为84.91%、个体阳性率为73.33%,网状组织增生症的群阳性率为25.47%、个体阳性率为13.61%,禽白血病的群阳性率为16.98%、个体阳性率8.89%;肿瘤病二重及三重感染率为21.92%;在有肿瘤病变和无肿瘤病变的病例中,马立克氏病的阳性率分别为77.85%和47.17%,其中60日龄以上鸡的阳性检出率显著高于60日龄以下的鸡(P<0.05),对马立克氏病和网状组织增生症而言,腺胃是最理想的检测组织。

tumor /suspect tumor samples of360chickens from106flocks in Guangxi were detected using a PCR technique which was developed for the rapid differential diagnosis of avian tumors.MD was the most common tu-mor in the survey(84.91%positive of the flocks and73.33%positive of the birds),RE was pretty common(25.47%of the flocks and13.61%of the birds)and then was AL(16.98%of the flocks and8.89%of the birds).Dual and triple infections were accounted for21.91%(79/360)positive.Proventraculus was the most detectable organ for MD(95.96%)and RE(85.71%)in the positive birds respectively,while liver was the optimal organ for AL(73.08%)detection.