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首页> 外文期刊>Tropical Animal Health and Production >Seroprevalence and risk factors of bovine viral diarrhoea virus (BVDV) infection in yaks (Bos grunniens) in northwest China
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Seroprevalence and risk factors of bovine viral diarrhoea virus (BVDV) infection in yaks (Bos grunniens) in northwest China

机译：西北牛的牛病毒性腹泻病毒（BVDV）感染的血清阳性率和危险因素

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摘要

Bovine viral diarrhoea virus (BVDV), a member of the Pestivirus genus, is an important pathogen of cattle worldwide, causing reproductive disorders in adult cattle and mucosal disease in calves. However, limited information about BVDV infection in yaks (Bos grunniens) in China is available, especially in white yaks which is a unique yak breed that only lives in Tianzhu Tibetan Autonomous County (TTAC), Gansu Province, northwest China. Therefore, we conducted a cross-sectional study to estimate the seroprevalence and risk factors associated with BVDV infection in 1584 yaks in Gansu province, northwest China, between April 2013 and March 2014 using an indirect ELISA test. The overall seroprevalence of BVDV in yaks was 37.56 % (595/1584), with 45.08 % (275/610) in black yaks and 32.85 % (320/974) in white yaks. Moreover, positive yaks were found in all four regions, varied from 33.22 to 40.31 %. Male yaks had a similar seroprevalence (37.84 %) with that of the female yaks (37.11 %). Season, species and geographical origins of yaks were considered as risk factors analyzed by logistic regression model. To our knowledge, this is the first report of seroprevalence and risk factors associated with BVDV infection in white yaks in China.
机译：牛病毒性腹泻病毒（BVDV）是瘟病毒属的成员，是全世界重要的牛病原体，引起成年牛的生殖系统疾病和犊牛的粘膜病。但是，关于中国牛（特别是s牛）BVDV感染的信息很少，尤其是白牛，这是一种独特的牛品种，仅生活在中国西北甘肃省天竺藏族自治县（TTAC）。因此，我们进行了一项横断面研究，通过间接ELISA试验估算了2013年4月至2014年3月之间中国西北地区甘肃省1584头ks牛的BVDV感染的血清阳性率和危险因素。 V牛中BVDV的总体血清阳性率为37.56％（595/1584），黑牛中为45.08％（275/610），白white牛中为32.85％（320/974）。此外，在所有四个地区均发现阳性牛，从33.22％到40.31％不等。雄性ya牛的血清阳性率（37.84％）与雌性牛（37.11％）相似。通过逻辑回归模型分析牛的季节，种类和地理起源作为危险因素。据我们所知，这是中国白牛血清感染率和与BVDV感染相关的危险因素的首次报道。

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