Medium-chain triglyceride as an alternative of in-feed colistin sulfate to improve growth performance and intestinal microbial environment in newly weaned pigs

作者：Yen Hung Che; Lai Wei Kang; Lin Chuan Shun; Chiang Shu Hsing^*

来源：Animal Science Journal, 2015, 86(1): 99-104.

DOI：10.1111/asj.12248

• colistin sulfate
• growth performance
• intestinal microflora
• medium-chain triglycerides
• pig

Five hundred and twenty-eight newly weaned pigs were given four treatments, with eight replicates per treatment. Sixteen to 18 pigs were assigned per replicate and were fed diets supplemented with 0 or 3% medium-chain triglyceride (MCT) and 0 or 40ppm colistin sulfate (CS) in a 2x2 factorial arrangement for 2 weeks. The results showed that dietary supplementation with MCT improved the gain-to-feed ratio during days 3-7 and in the overall period (P<0.05). Dietary supplementation with MCT decreased coliforms counts (C) in colon and rectum content (P<0.05). Dietary supplementation with CS decreased C and lactic acid bacteria plus C counts (L+C) in cecum (P<0.05), and C, L+C (P<0.01) and ratio of L and C (P<0.05) in colon and rectum contents. The lack of interactions between MCT and CS indicates different modes of action and additive effects between the two supplementations. In conclusion, supplementation with MCT in diet with or without CS could improve the intestinal microbial environment and the feed utilization efficiency of newly weaned pigs.

• 出版日期2015-1