中国畜牧兽医2017，Vol.44Issue(2)：377-383,7.DOI:10.16431/j.cnki.1671-7236.2017.02.011
猪流行性腹泻病毒间接ELISA检测方法的建立
Establishment of Indirect ELISA Detection Method for Porcine Epidemic Diarrhea Virus
摘要
Abstract
Porcine epidemic diarrhea (PED) is an acute,highly contagious enteric disease of pigs.Porcine epidemic diarrhea virus (PEDV) is the causative agent of PED.PED has caused significant economic losses to the pig industry.In this study,the purified PEDV as the coating antigen,by optimizing the ELISA reaction conditions,the indirect ELISA antibody detection method was established.The optimized reaction conditions were as follows:Antigen working concentration was 20 μg/mL;Serum sample dilution was 1 ∶ 500;It was coated at 4 ℃ overnight;The plates were blocked by 5％ calf serum incubated at 37 ℃ for 1 h;The secondary antibody was diluted at 1 ∶ 10 000,incubated at 37 ℃ for 1 h.It was judged as positive when the cutoff value D450nm≥ 0.289,as negative when D450 nm≤0.236,and as suspicious between 0.289 and 0.236.It could not react with the positive sear of other six viruses such as porcine respiratory and reproductive syndrome virus,porcine circovirus 2,classical swine fever virus,porcine parvovirus,pseudo rabies virus and foot-and-mouth disease virus.The variation coefficient of repeated test was less than 10％.74 pig serum samples from Jiangsu,Jiangxi,Fujian and Guangdong were detected,and the positive rate was 84 ％.It indicated that this method could be used for PEDV epidemiological surveys and diagnosis in the future.关键词
猪流行性腹泻病毒/ELISA/包被/抗体Key words
porcine epidemic diarrhea virus (PEDV)/ELISA/coat/antibody分类
农业科技引用本文复制引用
王丽珍,罗桂芳,张艳萍,沈勇,吴源潇,石燕,陈瑞爱,贺东生..猪流行性腹泻病毒间接ELISA检测方法的建立[J].中国畜牧兽医,2017,44(2):377-383,7.基金项目
大学生创新创业训练计划项目(201510564099) （201510564099）
