现代畜牧科技Issue(2)：60-63,4.DOI:10.19369/j.cnki.2095-9737.2025.02.018
猪群感染PRRSV后病毒血症规律和血清中N蛋白抗体消减规律探究
Investigation of Viremia Patterns and Reduction Patterns of N-protein Antibodies in Pig Herds Infected with PRRSV
摘要
Abstract
PRRS continues to affect the profitability of pig farms,to explore the duration of viremia and the reduction patterns of N-protein antibodies in pig herds infected with different PRRS strains within our company's system,as well as the correlation between the two,this study selected three groups of pig herds infected with different PRRS strains and monitored PRRS nucleic acid and N-protein antibodies.The first group consisted of aborting pigs,with blood samples taken on days 7,14,and 21 post-infection with NADC30-like strain;the second group consisted of 170-day-old gilts,with blood samples taken on days 21,28,35,and 42 post-vaccination with PRRS modified live vaccine(VR2332);the third group consisted of 170-day-old gilts,with blood samples taken on days 7,14,and 21 post-infection with NADC30-like PRRS.The results showed that in our company's system,viremia in pig herds infected with PRRSV is likely to disappear within 21 days;PRRS N-protein antibodies in pig herds infected with PRRSV first rise rapidly and then decline rapidly,eventually stabilizing or slowly decreasing;when there is a significant downward trend in N-protein antibodies,viremia is likely to disappear.关键词
猪繁殖与呼吸综合征/病毒血症/N蛋白Key words
PRRS/viremia/N-protein分类
农业科技引用本文复制引用
陈磊,杜伟国,李艺雷,龚彦,王锋锋,崔德旺,杨东辉..猪群感染PRRSV后病毒血症规律和血清中N蛋白抗体消减规律探究[J].现代畜牧科技,2025,(2):60-63,4.基金项目
河南农业大学高层次人才专项支持基金(30501475/111)23 （30501475/111）
