This trial was conducted to investigate the effects of compound probiotics fermentation broth supple-mentation on performance, serum biochemical and immune indexes of lactating sows. A total of 60 Large White sows at 108 days pregnant were randomly arranged into 4 groups with 15 replicates per group and 1 sow per replicate. The sows in control group were fed a basal diet,and sows in three trial groups were fed the basal diet supplemented with 200,300 and 400 mL/d compound probiotics fermentation broth,respectively. We fed sows until the 21th day of breastfeeding. The results showed as follows: 1)the average daily feed intake of 300 mL/d compound probiotics fermentation broth group was significantly higher than that of the control group (P<0.05), the weaning litter weight and average daily gain of piglets of 300 mL/d compound probiotics fer-mentation broth group were significantly higher than those of the control group(P<0.01). 2)The serum glu-cose content of 300 mL/d compound probiotics fermentation broth group was significantly higher than that of the control group(P<0.05), and the serum triiodothyronine content of 300 mL/d compound probiotics fer-mentation broth group was significantly higher than that of the control group(P<0.01). 3)The serum immu-noglobulin A, immunoglobulin G, immunoglobulin M, interleukin-2 and interleukin-6 contents of 300 mL/d compound probiotics fermentation broth group were significantly higher than those of the control group(P<0.01). All the results of this experiment show that supplementation of 300 mL/d compound probiotics fermen-tation broth in the diet can effectively improve the performance,serum biochemical and immune indexes of lac-tating sows.%本试验旨在探讨饲粮中添加复合益生菌发酵液对哺乳母猪生产性能、血清生化及免疫指标的影响.选取60头妊娠108 d的长白母猪,随机分为4组,每组15个重复,每个重复1头母猪.对照组饲喂基础饲粮,3个试验组分别在基础饲粮中添加200、300、400 mL/d复合益生菌发酵液,饲喂至哺乳21 d.结果表明:1)300 mL/d复合益生菌发酵液组母猪的平均日采食量显著高于对照组(P<0.05),仔猪断奶窝重和平均日增重极显著高于对照组(P<0.01).2) 300 mL/d复合益生菌发酵液组的血清葡萄糖(GLU)含量显著高于对照组(P<0.05),血清中三碘甲腺原氨酸(T3)含量极显著高于对照组(P<0.01).3)300 mL/d复合益生菌发酵液组的血清免疫球蛋白A(IgA)、免疫球蛋白G(IgG)、免疫球蛋白M(IgM)、白细胞介素-2(IL-2)、白细胞介素-6(IL-6)含量均极显著高于对照组(P<0.01).综合本试验结果认为:饲粮中添加300 mL/d复合益生菌发酵液可以有效改善哺乳母猪的生产性能、血清生化及免疫指标.
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