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首页> 外文期刊>Tropical Animal Health and Production >First report on serological evidence of bovine viral diarrhea virus (BVDV) infection in farmed and free ranging mithuns (Bos frontalis)
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First report on serological evidence of bovine viral diarrhea virus (BVDV) infection in farmed and free ranging mithuns (Bos frontalis)

机译：牛病毒腹泻病毒（BVDV）感染的第一次报告养殖和免费的MITHUNS（BOS Frontalis）

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摘要

Despite reports of BVDV infection in several domestic and wild ruminants, no information exists for mithun (Bos frontalis) species. Hence, this study was undertaken to determine prevalence of BVDV infection in mithuns, which contribute significantly to local economy in the North Eastern region of India. Blood and serum samples were collected between 2013 and 2016 from mithuns (n = 466) belonging to the states of Nagaland, Mizoram, and Arunachal Pradesh. Serum samples were tested for BVDV antibodies by a commercial ELISA and leukocytes were tested for BVDV by real-time RT-PCR. The overall true seroprevalence rate was 13.1% (95% confidence interval, CI: 6.9-17.8%) with higher prevalence in mithuns reared under semi-intensive system (27.5%) than in free-ranging mithuns (7.6%). Among the three states, seroprevalence (16.2%) was highest in Nagaland, while prevalence rates varied markedly among geographical locations. Age-wise data showed highest seroprevalence rate in > 6-year-old animals (20.6%) than 2-6 years old (16.9%), 6 months-2 years old (8.5%), and 6-month-old animals (11.3%). The seroprevalence was higher in males (20.9%) than in females (12.1%). Among the four mithun strains, higher prevalence was evident in Manipur (30.3%) than Arunachal (21.3%), Nagaland (11.7%), and Mizoram strain (10.2%). However, no BVDV genomic RNA could be detected. The results provide first serological evidence of BVDV infection in mithun species and extend the knowledge on BVDV host range. The baseline data will help further investigations on epidemiology of BVD in mithun and its impact on mithun production.
机译：尽管在国内和野生反刍动物中提出了BVDV感染，但Mithun（Bos Frontralis）物种没有任何信息。因此，本研究旨在确定MITHUS中BVDV感染的患病率，这对印度北部地区的地方经济贡献了大大贡献。从属于纳卡兰，米佐兰和Arunachal Pradesh的州的Mithuns（n = 466）之间的Mithuns（n = 466）之间收集了血液和血清样品。通过实时RT-PCR测试通过商业ELISA的BVDV抗体测试BVDV抗体的血清样品，实时RT-PCR对BVDV进行白细胞。整体真正的Seroprengalence率为13.1％（95％置信区间，CI：6.9-17.8％），在半密集系统（27.5％）下的Mithuns患病率比在自由范围内（7.6％）。在这三种状态中，纳加兰的血清透视（16.2％）最高，而地理位置的流行率明显多样化。 Age-Wise数据显示出最高的血清升迁率> 6岁动物（20.6％）超过2-6岁（16.9％），6个月 - 2岁（8.5％），以及＆ 6个月大的动物（11.3％）。血清透视率高于女性（12.1％）。在四种梭菌菌株中，人类的患病率较高（30.3％）比Arunachal（21.3％），Nagaland（11.7％）和Mizoram菌株（10.2％）。但是，不能检测到BVDV基因组RNA。结果提供了Mithun物种中BVDV感染的首要血清学证据，并延长了BVDV主机范围的知识。基线数据将有助于进一步调查Mith​​un中BVD的流行病学及其对Mithun生产的影响。

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