新疆天山牦牛附红细胞体病的诊断

Diagnosis on Eperythrozoonosis of Tianshan Yaks in Xinjiang Autonomous Region

为查明导致新疆天山放牧牦牛贫血、消瘦的原因,对疑似病牛进行病理剖检观察,同时采集可疑牦牛血液(抗凝血)50份,采用血液滴片法和推片染色法进行镜检。结果发现,病牛眼结膜和胸腔、腹腔内各脏器表面粘膜均呈现不同程度的黄染;10头病牛红细胞的变形率超过20%,其中7头变形率超过50%;红细胞表面呈现低色素性,并附着形态不一的附红细胞体。结果揭示,附红细胞体为此次牦牛贫血、消瘦的主要病因;在平时的饲养管理中,应防止牛群之间的交叉感染,尤其是在免疫接种时,要注意勤换针头。

In order to find out the cause of anemia and weight loss in grazing yaks,the suspected yaks were observed by pathological examination,50 blood samples（anticoagulant）were collected by blood droplet method and slide staining method. Results showed that the eye conjunctiva,the chest and abdominal cavity viscera mucosal surfaces of infected yaks presented different degrees of stained yellow;The erythrocyte deformation rate of 10 infected yaks were more than 20%,in which 7 infected yaks were more than 50%;Erythrocyte surface presented hypochromic and was adhered different forms of Eperythrozoon. The test results revealed that Eperythrozoon was the main cause of anemia and weight loss of yaks. Therefore,during the normal feeding and management,the cross-infection between the yaks should be controlled,the syringe needles should be frequently changed,especially in the time of vaccination.