摘要
采用镇检法检测奶牛颈静脉血附红细胞体(附红体)感染情况,共检测4个奶牛场128头奶牛,发现4个奶牛场的奶牛均有不同程度的感染,平均感染率为58.59％(75/128);抽查7对母牛及其新生犊牛颈静脉血进行垂直传播调查,结果其中5对母、犊同时检出附红体。对抗凝血中奶牛附红体进行4℃冰箱保存试验,观察到66份保存30天后仍有活力;用奶牛附红体阳性抗凝血人工感染25份阴性抗凝血,4℃冰箱保存,2天后观察到阴性抗凝血全部变为阳性,15天后观察转为强阳性。
This paper reported an epidimiological investigation on cows Eperythrozoons infection in Lan Zhou. The results showed that Eperythrozoon infection positive rates in cows wers 58.59%(75/128)and vertical transmission was noticed as the major mode of transmission of Eperyozoons. Reporter noticed the Eperythrozoon live a month in 4 C and have infective function.
关键词
奶牛
附红细胞体
流行病学
Eperythrozoo Eperythrozoonosis Cows Epidemiological investigation
