动物医学进展Issue(12)：74-78,79,6.
抗 PRRSV 和 PCV-2-Cap 蛋白特异性 IgY 抗体对保育猪生长和免疫的影响
Effects of Specific IgY Antibodies Against PRRSV and PCV-2-Cap Protein on Growth Performance and Immunity of Weaning Piglets
摘要
Abstract
Weaning piglets were fed with specific egg yolk immunoglobulin (IgY)antibodies against porcine reproductive and respiratory syndrome virus (PRRSV)and porcine circovirus type 2(PCV-2)-Cap protein, of which on growth performance and immunity was investigated.The results indicated that PRRSV and PCV-2 antibody negative rate was higher 15% and 5% in 0.5% groups than that of in blank groups at 53 days of age,respectively.Compared with blank groups,S/P average value of positive PRRSV antibody ti-ter in 0.5% groups decreased 15.59% and 24.53% over 53 and 60 days of age,respectively.During 46 to 60 days of age,SP average value of postive PCV-2 antibody titer of 0.5% groups were lower 15.42%, 19.66%and 12.70% than that of in blank groups,respectively.Compared with blank groups,finial body weight,daily weight gain and survival rate of 0.5% groups were improved 12.74% (P < 0.01),16.90%(P < 0.01)and 1.67% at weaning piglets,respectively.The expressions of PRRSV antigen in 0.5%groups were abolished in jejunum and small intestine with immunohistochemistry analysing,compared with the blank groups.The special IgY additive could provide a novel alternative approach to prevent and control diseases caused by PRRSV and PCV-2 infection in pigs.关键词
猪繁殖与呼吸综合征病毒/猪园环病毒2型Cap蛋白/卵黄免疫球蛋白/保育猪Key words
PRRSV/PCV-2-Cap protein/egg yolk immunoglobulin (IgY)/weaning piglets分类
农业科技引用本文复制引用
鲍伟华,周雪荣,卢黎明,孙鹏烈,樊莉,方维焕,李肖梁..抗 PRRSV 和 PCV-2-Cap 蛋白特异性 IgY 抗体对保育猪生长和免疫的影响[J].动物医学进展,2013,(12):74-78,79,6.基金项目
浙江省重大科技专项重点农业项目（2012C12003-2）；杭州市科技局农村农业科研推广专项（20110232B22）；宁波市农业科技攻关项目 （）
