摘要
应用SephadcxG-200层析法纯化鸡减蛋综合症病毒,利用NC膜作为载体,成功建立了检测EDS-76血请抗体的斑点酶联免疫吸附试验(Dot-ELISA)。抗原包被浓度为2μg/ml,被检血清浓度为1:20,酶标兔抗鸡1gG浓度为1:200.底物溶液最适pH值为7.2。对A-F6个养禽场随机抽检血清160份,分别用Dot-ELISA、HI和AGP检测,Dot-ELISA检出阳性率为51.9%,HI检出阳性率为46.9%,AGP检出阳性率为31.9%。对140日龄鸡人工感染试验,测定抗体消长规律。本方法不需特殊仪器。适用于基层兽医部门和养鸡场对EDS-76的血清学诊断和流行病学调查。
A indivect Dot - ELISA was developed for the detection ofantibodis against Egg Drop Syn- drome-1976(EDS-76). ED5-76 Virus (AV127)was purified by Sephadex G-200. lt was shown that coating concentrationwas 2 ug/ml. Optimal dilution of serum samples was 1 :20. Optimal dilutionof rab- bit anti-chicken antibodies conjugated by peoidase was 1: 200. 160serum samples from avian farm were detected by indirect Dot ELISA , Hland AGP ,the result indicateed that positive rates were 51. 9% , 46. 9%and 31. 9% ,respectiely, Titres of antibody in the serum of experimentalinfected chicken according to days were detected. It. was demonstratedthat the indirect Dot-ELISA was a specific ,sensitive ,rapid ,re- producibletest for serological survey of EDS - 76.
出处
《黑龙江畜牧兽医》
CAS
北大核心
1997年第10期3-5,共3页
Heilongjiang Animal Science And veterinary Medicine