猪瘟脾淋苗和传代细胞苗田间免疫效果比较试验

Comparison of immune effect on spleen and lymph tissue and cell line origin classical swine fever vaccine in field

为比较猪瘟脾淋苗和传代细胞苗的免疫效果,在厦门市同安区某规模猪场,选用代号为CQ、CD和JX 3个厂家生产的猪瘟脾淋苗和传代细胞苗进行免疫效果试验。随机选取45头30日龄断乳仔猪,分为3组,30日龄首免,首免后28 d二免,A组免疫接种CQ厂家的猪瘟脾淋苗,B组免疫接种CD厂家的猪瘟脾淋苗,C组免疫接种JX厂家的猪瘟细胞传代苗,通过定期跟踪3组猪群血清中的抗体水平,评估疫苗的免疫效果。结果显示:3组猪群二免后7 d前免疫抗体抗体水平和阳性率无显著差异,38 d后才出现免疫抗体水平和阳性率显著差异,以C组猪群的抗体阳性率最高,A组猪群的抗体阳性率最低。

Three vaccines were used to compare immune effect on spleen and lymph tissue and cell line origin classical swine fever vaccine. Forty-five 30-day-old piglets were randomly selected and divided into 3 groups in a scale farm in Xiamen, meanwhile first immunization was carried out, second immunizationafter28 days, group A used spleen and lymph tissue origin classical swine fever vaccine from CQ and group B used spleen and lymph tissue origin vaccine from CD, while group C used cell line origin classical swine fever vaccine from JX, through regular tracking of antibody level to evaluate the immune effect. The results showed： The anti-body positive rate in group C herds was the highest on the 38thday after second immunization, with a significant difference in group A herds.