摘要
[目的]估计广东省规模化猪场仔猪病毒性腹泻（PVD）的群体流行率，分析PVD发生的风险因素。[方法]2013年12月--2014年3月，对广东省197个规模化猪场进行调查和横断面分析研究。[结果]调查发现：广东省规模化猪场的PVD场流行率为48．55％（95％CI：42．27％～56．21％）。PVD流行与猪场规模（OR=I．340，P=0．020）、外来人员进入生产区（OR=4．740，P=0．007）、距县级以上公路距离（OR=0．389，P=0．008）、病死猪无害化处理与否（OR=0．244，P=0．035）有关联。多元logistic回归分析发现：参观者进入生产区（OR=5．003，95％CI：1．555～16．096，P=0．007）是发生PvD的风险固素；免疫猪流行性腹泻和传染性胃肠炎（PED＋TGE）二联灭活疫苗（0R=2．012，95％CI：1．035～3．912，P=0．039）、未进行病死猪无害化处理（OR=0．306，95％CI：0．080～1．175，P=0．084）、距县级以上公路距离过近（OR=0．530，95％CI：0．080～1．175，P=0．090）可能是混杂因素。[结论]本研究弄清了广东省规模化猪场PVD的场流行率，确定了参观者进入生产区是发生PVD的风险因素，提示生物安全措施对PVD控制的重要性。
[Objective]To evaluate the prevalence of piglet viral diarrhea （PVD） in large-scale pig farms in Guangdong province and analyze the related risk factors of PVD outbreaks.[Methods] 197 scale pig farms were investigated from December 2013 to March 2014 and then a cross-sectional study was conducted by logistic regression analysis. [Results] The prevalence rate of PVD at the farm level was 48.55% （95%CI ： 42.27%-56.21%） . Four factors including herd size （OR=1.340, P=0.020）, the behavior of visitors entering the breeding area （OR=4.740, P=0.007）, the distance to roads above the county level （OR=0.389, P=0.008 ） and the bio-safety disposal of diseased and dead pigs （ OR=0.244, P-0.035）, were associated with prevalence of PVD. Multivariate logistic regression analysis showed that the behavior of visitors entering the breeding area （OR=5.003, 95% CI ： 1.555-16.096, P=0.007） was the risk factor of PVD outbreaks. Immunization with the porcine epizootic diarrhea and transmissible gastroenteritis （PED＋TGE） vaccines （OR=2.012, 95% CI ： 1.035-3.912, P=0.039）, bio-safety disposal of diseased and dead pigs （OR=0.306, 95%CI ： 0.080~1.175, P=0.084）, distance to roads above the county level （OR=0.530, 95% CI ： 0.080-1.175, P=0.090） might be confounding factors. [Conclusion] The entry of visitors was confirmed as an important risk factor of PVD outbreaks, which indicated the importance of bio-security measures for PVD prevention and control.
出处
《中国动物检疫》
CAS
2016年第10期1-6,共6页
China Animal Health Inspection
关键词
猪病毒性腹泻
猪流行性腹泻
传染性胃肠炎
轮状病毒病
流行率
风险因素
横断面研究
piglet viral diarrhea
porcine epidemic diarrhea
transmissible gastroenteritis of swine
rotavirus infection
prevalence ： risk factors
cross-sectional study
