气候变化领域集成服务门户(CCPortal): Epidemiological Investigation of Yak (Bos grunniens) Fascioliasis in the Pastoral Area of Qinghai-Tibet Plateau, China

CCPortal

DOI	10.3390/ani13213330
	Epidemiological Investigation of Yak (Bos grunniens) Fascioliasis in the Pastoral Area of Qinghai-Tibet Plateau, China
	Cai, Qijian; Lei, Mengtong; Li, Chunhua; Cai, Jinzhong; Ma, Doudou; Zhang, Houshuang
发表日期	2023
ISSN	2076-2615
卷号	13 期号:21
英文摘要	The objective of this investigation was to understand the epidemiology of fascioliasis in yaks in the alpine pastoral areas of the Qinghai-Tibet Plateau, China. The prevalence of Fasciola hepatica infection was estimated by examining eggs in the feces of yaks and by autopsy after the slaughter. Yaks were sampled from a total of 16 representative counties in Qinghai province, and risk factors were assessed based on regional and age characteristics. Fecal samples were obtained from 1542 yaks aged 0-1 (<1 year old), 1-2 (>= 1 year old and <3 years old), and over 3 years (>= 3 years old). In addition, 242 yaks over 3 years old who had not undergone fecal examinations were randomly selected for autopsy. A total of 267 fecal samples were positive for Fasciola spp. eggs. The average infection rate was 17.32% (0-60.61%), and the average infection intensity was 51.9 eggs per gram (epg) of feces, with intensities ranging from 18 to 112 epg. In Maduo, Dari, Zhiduo, Chengduo, and Datong counties, the Fasciola spp. eggs infection rate was zero. Fasciola spp. adult flukes were detected in 66 out of 242 yaks at autopsy, with a total infection rate of 27.27% and an average infection intensity of 21.2 (adult worms), with intensities ranging from 3 to 46 worms. Logistic regression model analysis showed that age was a significant risk factor for yak infection with Fasciola spp. In addition, the risk varied between regions: Haiyan, Gangcha, Duran, and Wulan were all high-risk areas for yak infection with Fasciola spp. The spatial distribution of the Fasciola spp. infection rate in each region showed a very weak negative correlation (Moran's I = -0.062), Duran formed a spatial distribution of high-low clusters with surrounding areas, and Datong formed a low-high clustering distribution characteristic with the surrounding areas. This investigation revealed that the infection rate of Fasciola spp. in yaks was higher on the Qinghai-Tibet Plateau. Increasing age was a risk factor for infection with Fasciola spp.; different regions also have a different risk of Fasciola spp. infection. Only two regions showed clustering characteristics in the spatial distribution of infection rates. These findings extend the epidemiological information on Fasciola spp. infection in yaks and provide baseline data for the execution of control measures against Fasciola spp. infection.
关键词	Fasciola spp.epidemiology investigation yak Qinghai-Tibet Plateau pastoral area
WOS研究方向	Agriculture, Dairy & Animal Science ; Veterinary Sciences ; Zoology
WOS记录号	WOS:001103180800001
来源期刊	ANIMALS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282723
作者单位	Chinese Academy of Agricultural Sciences; Shanghai Veterinary Research Institute, CAAS; Ministry of Agriculture & Rural Affairs
推荐引用方式 GB/T 7714	Cai, Qijian,Lei, Mengtong,Li, Chunhua,et al. Epidemiological Investigation of Yak (Bos grunniens) Fascioliasis in the Pastoral Area of Qinghai-Tibet Plateau, China[J],2023,13(21).
APA	Cai, Qijian,Lei, Mengtong,Li, Chunhua,Cai, Jinzhong,Ma, Doudou,&Zhang, Houshuang.(2023).Epidemiological Investigation of Yak (Bos grunniens) Fascioliasis in the Pastoral Area of Qinghai-Tibet Plateau, China.ANIMALS,13(21).
MLA	Cai, Qijian,et al."Epidemiological Investigation of Yak (Bos grunniens) Fascioliasis in the Pastoral Area of Qinghai-Tibet Plateau, China".ANIMALS 13.21(2023).