Effect of compound Chinese herbal on immune function of piglets

Different dosages of compound Chinese herbal were supplemented to the basal diet to study its effect on immune function of piglets.9 litters of newborn Duroc Landrace Yorkshire crossbred piglets(90 piglets total) were divided into 3 groups with 30 piglets each,and fed with basal diet,basal diet plus compound Chinese herbal at levels of 1% and 2%,respectively.The trial was conducted for 45 d.Blood samples in 10 piglets from each group were taken on 14、24、32、42 day for measuring some immune indices.The results indicated that addition of compound Chinese herbal to the basal diet increased significantly phagocytosis rates of neutral granular cells,conversion rates of T-lymphocytes,the levels of serum IgA、IgG,and the content of blood antioxidase(SOD,GSH-PX).The trial implied that appropriate dosage of compound Chinese herbal could effectively inhibit weanling stress and enhance immunity of piglets.