文献类型： 外文期刊
作者： Wang, Zhengrong 1 ; Peng, Xia 2 ; Bo, Xinwen 1 ; Zhang, Bowen 2 ; Zhang, Yanyan 1 ; Yu, Fuchang 2 ; Zhao, Aiyun 2 ; Zhang, Zhenjie 2 ; Qi, Meng 1 ;
作者机构： 1.Xinjiang Acad Agr & Reclamat Sci, State Key Lab Sheep Genet Improvement & Hlth Prod, Shihezi 832000, Peoples R China
2.Tarim Univ, Coll Anim Sci & Technol, Alaer 843300, Xinjiang, Peoples R China
关键词： Cryptosporidium; Infection; Subtype; Genetic; Sheep
期刊名称：PARASITOLOGY RESEARCH （ 影响因子：2.0； 五年影响因子：2.0 ）
ISSN： 0932-0113
年卷期： 2023 年
页码：
收录情况： SCI
摘要： Cryptosporidium spp. are diarrheagenic intestinal parasites with multiple hosts worldwide. A total of 1252 fresh fecal samples of sheep were collected from 10 large-scale farms in southern Xinjiang. Based on the small subunit ribosomal (SSU rRNA) gene of Cryptosporidium, 100 Cryptosporidium-positive samples (8.0%, 100/1252) were detected by PCR. Nine out of 10 farms were positive for Cryptosporidium, with the highest infection rate being 18.4% (23/125) on farm 9 in Qira. The infection rates of Cryptosporidium in pre-weaned lambs, weaned lambs, fattening sheep, and adult sheep were 20.3% (61/301), 10.3% (34/329), 0.9% (3/327), and 0.7% (2/295), respectively. Three Cryptosporidium species were identified, namely, C. xiaoi (n = 61), C. parvum (n = 22), and C. ubiquitum (n = 17). Of them, C. xiaoi was detected on all positive farms and in different age groups of sheep. The subtypes of C. parvum and C. ubiquitum were identified by PCR at the 60 kDa glycoprotein (gp60) gene. Two C. parvum subtypes were identified: IIdA19G1 (n = 21) and IIdA15G1 (n = 1). One C. ubiquitum subtype was identified with XIIa (n = 17). These results indicated the common transmission and genetic diversity of Cryptosporidium in sheep in southern Xinjiang, and further investigations are needed on the zoonotic potential of C. parvum and C. ubiquitum in this region.
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