Effects of dietary probiotics on growth performance, faecal microbiota and serum profiles in weaned piglets
文献类型: 外文期刊
第一作者: Dong, Xiaoli
作者: Dong, Xiaoli;Zhang, Naifeng;Zhou, Meng;Tu, Yan;Diao, Qiyu;Deng, Kaidong
作者机构:
关键词: fecal microbiota;growth performance;probiotics;serum profiles;weaned piglets
期刊名称:ANIMAL PRODUCTION SCIENCE ( 影响因子:1.533; 五年影响因子:1.779 )
ISSN: 1836-0939
年卷期: 2014 年 54 卷 5 期
页码:
收录情况: SCI
摘要: This study was conducted to evaluate the effects of dietary supplementation with probiotics on growth performance, faecal microbiota, and serum profiles in weaned piglets. Large White Landrace piglets (n = 144) weaned at 35-37 days of age were selected and divided into four groups, and the piglets from each group were assigned randomly to six pens (replicates) with six animals each. Each group was fed one of four diets for 5 weeks: a basal diet without antibiotics and probiotics (control), or the basal diet supplemented with Lactobacillus plantarum GF103, Bacillus subtilis B27, or a mixture of L. plantarum GF103 and B. subtilis B27. During the first 2 weeks of the supplementation, the piglets supplemented with probiotics had lower (P < 0.05) average daily feed intake than control piglets. The feed conversion ratio was improved (P < 0.05) in probiotic-supplemented groups compared with that of control. The population of E. coli in faeces of the piglets supplemented with L. plantarum GF103 was lower (P < 0.05) than that of control piglets. On day 14, dietary supplementation of the combination of L. plantarum GF103 and B. subtilis B27 increased (P < 0.05) the serum concentrations of total protein, globulin, and creatinine, but decreased (P < 0.05) the ratio of serum albumin to serum globulin, compared with the basal diet. On day 14, dietary supplementation with probiotics increased (P < 0.05) the serum IgM concentration compared with the basal diet. Supplementation of B. subtilis B27 or the combination of L. plantarum GF103 and B. subtilis B27 increased (P < 0.05) the serum IgA concentration at the end of the trial. These results suggest that dietary probiotics improved growth performance and enhanced immune responses at the early stage of the post-weaning period in piglets.
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