中草药、益生素和抗生素对猪生长性能和免疫功能的影响比较试验

Comparative experiment on the effects of Chinese herb, probiotic and antibiotics on growth performance and immune function in growing pigs

本试验旨在比较中草药、益生素和抗生素对生长猪生产性能和免疫功能的影响。试验选取15kg左右的杜×长×大三元杂交猪90头,随机分为抗生素组、0.2%益生素组和0.2%中草药组,每组3个重复,每个重复10头猪,试验时间28d。结果表明:(1)与抗生素组相比,益生素及中草药组的日增重提高、料重比降低(P>0.05);(2)中草药组的IgG、IgM、IgA、C3、C4含量和益生素组的IgG含量均显著提高(P<0.05)。结论:在生长猪日粮中添加0.2%益生素或中草药能够促进动物生长,提高免疫功能,效果优于抗生素。

The aim of this experiment was conducted to compare the effect of Chinese herb,probiotic and antibiotics on production performance and immune function of growing pigs.90 growing pigs （Duroc× Landrace×Yorkshire）with about 15 kg body weight were randomly assigned into the antibiotic group ,0.2 % probiotic group and 0.2 % Chinese herb group, with 3 replications for 10 pigs each.The experiment lasted 28 days. The results showed that： （1）compared with the antibiotic group,the average daily gain and feed efficiency increased in the probiotic group and Chinese herb group respectively （P 〉0.05）.（2）The contents of IgG,IgM,IgA,C3,C4 in the Chinese herb group and IgG in the probiotic group were much higher than those in the antibiotic group（P 〈 0.05）. It can be conclued that：0.2 % probiotic or Chinese herb added to basie diet eould both promote growth and improve immunity of growing pigs.