Isolation and preliminary characterization of a large Babesia sp from sheep and goats in the eastern part of Gansu Province, China

文献类型： 外文期刊

第一作者： Bai, Q

作者： Bai, Q;Liu, QY;Liu, DK;Ren, JX;Li, X

作者机构：

期刊名称：PARASITOLOGY RESEARCH （ 影响因子：2.289； 五年影响因子：2.403 ）

ISSN： 0932-0113

年卷期： 2002 年 88 卷

页码：

收录情况： SCI

摘要： Two species of Babesia were isolated from naturally infected sheep in the eastern part of Gansu province. One of the species was identified as B. ovis, while the another one seems as yet to be an unidentified Babesia species. The latter could be transmitted transovarially by Haemaphysalis longicornis. It was shown that larvae and nymphs transmit the organism to sheep and goats with a prepatent period of 5-28 days. As the carrier period of B. ovis is longer than that of the larger species and the prepatent period of the larger Babesia is shorter than that of B. ovis, it was possible to isolate the unidentified larger species. The larger Babesia is polymorphic, including double pyriform, single pyriform, ring-form, rod-like, three-leafed and budding forms. The size of typical paired pyriforms was 1.8-2.5 mum x 0.9-1.8 mum. with mean dimensions of 2.21 +/- 0.12 mum x 1.17 +/- 0.18 mum. The parasite causes a severe course of infection associated with a parasitaemia as high as 23.7% and with a high mortality rate in both sheep and goats. being very marked in lambs and imported small ruminants.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序