摘要
利用蜱传播试验,确定了甘肃省一些牛羊血液原虫的媒介和传播方式。甘肃省牛的双芽巴贝斯虫媒介为微小牛蜱。大巴贝斯虫媒介为长角血蜱。瑟氏泰勒虫媒介为长角血蜱;绵羊无浆体的媒介为草原革蜱。微小牛蜱、长角血蜱可分别传播双芽巴贝斯虫和大巴贝斯虫,传播方式为经卵传递。将采集于甘肃文县牛体上的微小牛蜱和两当县的长角血蜱饱血雌虫孵育而来的次代幼虫分别叮咬除脾牛体后,2头牛各自感染双芽巴贝斯虫或大巴贝斯虫。将采自崇信县带虫牛的饥饿长角血蜱成虫饲喂在除脾牛体上。牛只感染了瑟氏泰勒虫。流行于甘肃省大部分养羊区的绵羊无浆体的传播媒介为草原革蜱。草原革蜱对绵羊无浆体不能经卵传递,也不产生发育阶段性传播。唯一的传播方式是蜱成虫的间歇性吸血传播。
Using experimental transmission with ticks, the vectors and way of transmission of some ovine and bovine tick borne haemoprotozoans were confirmed. In Gansu Province, the vectors of Babesia biggemina, B.major, Theileria sergenti and Anaplasma ovis were proved to be Boophilus microplus, Haemaphysalis longicornis, H. longicornis and Dermancentor nuttalli respectively. B. bigemina and B.major can be transmitted transovarially by B.microplus and H.longicornis respectively. When larvae of B.microplus and H.longicornis, which were derived from engorged females collected from Wen and Liangdang counties, were infested on the two splenectomised calves seperately, both the calves were infested. A calf had been infected by T.sergenti, when it was infested with adult ticks of H. longicornis collected from Chunxing county. D. nuttalli had been proved to be the vector of A. ovis, and the only way of transmission was by the means of moving and re infestation, and transovarially and trasstadially transmission were not observed.
出处
《中国兽医寄生虫病》
2000年第1期17-19,共3页
Chinese Journal of Veterinary Parasitology
关键词
血液原虫
媒介蜱
传播
牛羊
Haemoprotozoans
Vector ticks
Transmission
