›› 2009, Vol. 36 ›› Issue (6): 154-155.

• 疾病防治 • Previous Articles     Next Articles

Investigation on Epidemiology of Dairy Yak Coccidiosis

HE An-xiang1, JIANG Zhong-rong1, YE Zhong-ming1, WANG Tao2, YANG Guang-you2, YIN Dong-yun3, JIANG Jun4   

  1. (1.Scientific Research Institute for Animal Husbandry of Ganzi District, Kangding 626000, China; 2.College of Veterinary, Sichuan Agricutural University, Yaan 625000, China;3.Animal Husbandry Bureau of Seda County, Seda 626600, China;4.Agricutural and Animal Husbandry Bureau of Kangding, Kangding 626000, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-06-20 Published:2009-06-20

Abstract: 500 fecal samples of Yak in Kangding and Seda county were collected for epidemiological investigation of yak coccidiosis. Coccidia mean infection rate was 30.00%(150/500),Kangding and Seda county were 31.95%(54/169) and 29%(96/331) respectively. Male yak mean infection rate was 26.38%(43/163),female yak was 31.75%(107/337). The infection rate of adult dairy yak (>3 years old)was 16.22%(42/259),young and calves dairy yak(<3 years old)was 44.81%(108/241). Nine species of Eimeria coccidian were identified as follows: Eimeria bovis (24.00%),E.cylindrica(12.00%),E.zurnii(16.00%),E.subspherica(18.03%),E.brasilicnsis(8.27%),E.canadensis(6.67%),E.ellipsoidallis(9.33%),E.wyomingensis(3.30%) and E.auburncnsis(2.40%).

Key words: dairy yak; coccidiosis; epidemiology

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