5Bao Q,Liu W,Yu J,et al.Isolation and identification of cultivable lactic acid bacteria in traditional yak milk products of Gansu province in China[J].J Gen Appl Microbiol,2012,58(2):95-105.
6Bandyopadhyay S,Sasmal D,Biswas T K,et al.Serological evidence of antibodies against Chlamydophila abortus in free-ranging yak (Poephagus grunniens) in Arunachal Pradesh,India[J].Rev Sci Tech,2009,28(3):1051-1055.
7Chen Q,Gong X,Zheng F,et al.Seroprevalence of Chlamydophila abortus infection in yaks (Bos grunniens) in Qinghai,China[J].Trop Anim Health Prod,2014,46:503-507.
8Everett K D.Chlamydia and Chlamydiales:More than meets the eye[J].Vet Microbiol,2000,75(2):109-126.
9Huang S Y,Wu S M,Xu M J,et al.First record of Chlamydia abortus seroprevalence in Tibetan sheep in Tibet,China[J].Small Ruminant Research,2013,112:243-245.
10Liu Q,Cai J,Zhao Q,et al.Seroprevalence of Toxoplasma gondii infection in yaks (Bos grunniens) in northwestern China[J].Trop Anim Health Prod,2011,43(4):741-743.
