文献类型：期刊文献

英文题名：Distribution of Cryptosporidium species in Tibetan sheep and yaks in Qinghai, China

作者：Li, Pei[1];Cai, Jinzhong[2];Cai, Min[1];Wu, Wenxian[1];Li, Chunhua[2];Lei, Mengtong[2];Xu, Hailing[1];Feng, Lijun[1];Ma, Jiawen[1];Feng, Yaoyu[1];Xiao, Lihua[3]

机构：[1]E China Univ Sci & Technol, Sch Resource & Environm, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China;[2]Qinghai Acad Vet Med & Anim Sci, Xining 810016, Peoples R China;[3]Ctr Dis Control & Prevent, Div Foodborne Waterborne & Environm Dis, Natl Ctr Emerging & Zoonot Infect Dis, Atlanta, GA 30333 USA

年份：2016

卷号：215

起止页码：58

外文期刊名：VETERINARY PARASITOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000369212800011)】；

基金：This work was supported by National Natural Science Foundation of China (31110103901, 31425025 and 31229005), National Science and Technology Collaboration Program of China (2008DFA30470), and Fundamental Research Funds for the Central Universities, China.

语种：英文

外文关键词：Cryptosporidium; Qinghai; Tibetan sheep; Yaks; SSU rRNA

摘要：Few data are available on the distribution of Cryptosporidium species in Tibetan sheep and yaks, which are free-range animals living in a cold, low oxygen, and high ultraviolet radiation habitat. In this study, 904 fecal specimens were collected from 350 Tibetan sheep and 554 yaks in six counties. Cryptosporidium spp. were detected and differentiated by PCR and sequence analyses. Altogether, 43 (12.3%) Tibetan sheep and 158 (28.5%) yaks were positive for Cryptosporidium spp. In Tibetan sheep, Cryptosporidium xiaoi (39/43, 90.7%) was the dominant species, with the remaining cases (4/43, 9.3%) by Cryptosporidium ubiquitum. All C ubiquitum specimens belonged to the subtype family XIla. In contrast, Cryptosporidium andersoni (72/158,45.6%), Cryptosporidium bovis (47/158,29.7%), Cryptosporidium ryanae cattle type (35/158,22.2%), C. ryanae buffalo type (2/158, 1.3%), and Cryptosporidium suis-like (2/158, 1.3%) were identified in yaks. Contradictory to previous observations, C andersoni was one of the dominant Cryptosporidium species in yaks in this study. Despite sharing habitats, Tibetan sheep and yaks are evidently infected with different Cryptosporidium species. (C) 2015 Elsevier B.V. All rights reserved.