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最新4种猪口蹄疫O型灭活疫苗及O型-A型二价灭活疫苗免疫效果评估 被引量:8

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摘要 试验选用政府招标的2家公司生产的猪口蹄疫O型灭活疫苗及猪口蹄疫O型-A型二价灭活疫苗共4种疫苗对健康仔猪按免疫程序进行试验,采用ELISA方法检测不同阶段抗体水平,以期评估不同猪口蹄疫疫苗的免疫效果。试验结果表明,2种O型疫苗免疫21 d后,其抗体阳性率就达70%,二免后抗体效价可达8log2~9log2,抗体合格率高达100%,抗体保护力持久;O型-A型二价灭活苗需2次以上免疫,才能产生较好的抗体保护力度。政府招标购买的疫苗均能产生较好的免疫效果,O型灭活苗免疫效果优于O型-A型二价灭活苗;建议口蹄疫免疫实行二次免疫,间隔28~30 d,必要时进行三免。
出处 《养殖与饲料》 2020年第6期11-14,共4页 Animals Breeding and Feed
基金 柳科协软20180106号。
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