某规模化猪场猪瘟母源抗体消长规律的监测及免疫程序优化

Monitoring of the fluctuation of maternal antibody against swine fever and optimization of immunization programs in a large-scale pig farm

为了提高猪场猪瘟疫苗免疫效果,增强猪群抵抗猪瘟病毒感染能力,采用ELISA方法对某规模化猪场仔猪母源抗体进行监测。根据母源抗体消长规律,将猪瘟疫苗免疫程序由原来21日龄一免、60日龄二免,调整为28日龄一免、70日龄二免。对比调整前后两批次商品猪的猪瘟抗体监测数据,表明免疫程序调整后猪群的猪瘟抗体合格率上升、离散度下降,疫苗免疫效果提高较明显。

In order to improve the immune effect of swine fever vaccine and enhance the ability of pigs to resist swine fever virus infection,the maternal antibodies of piglets in a large-scale pig farm were monitored by ELISA.According to the law of the fluctuation of maternal antibodies,the immunization program of swine fever vaccine was adjusted from one immunization at 21 days old and two immunization at 60 days old to one immunization at 28 days old and two immunization at 70 days old.The data of swine fever antibody monitoring of two batches of commercial pigs before and after adjustment showed that the qualified rate of swine fever antibody increased and the dispersion decreased after the adjustment of immunization program,and the immune effect of vaccine improved significantly.