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猪瘟母源抗体在仔猪体内持续时间的研究 被引量:32

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摘要 仔猪吮吸免疫猪瘟疫苗母猪的初乳后,监测母源抗体在仔猪体内的消长规律,以探索仔猪猪瘟疫苗最佳首免日龄。试验选择3个场共12头母猪,产前136~140天进行猪瘟兔化弱毒(细胞苗)疫苗接种,4毫升/头。通过猪瘟抗体酶联免疫吸附试验(竞争性ELISA)检测其所产仔猪7、14、21、28、35和42日龄时血清中抗体水平。结果发现,3个猪场试验仔猪母源抗体下降幅度不一,甲场第28天降到最低,丙场第21天降到最低,之后其抗体水平均出现升高现象。但3个猪场之间不同日龄仔猪抗体水平差异较大。
出处 《养猪》 2008年第1期46-48,共3页 Swine Production
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