講演情報
[XI-20-36]Effects of tannin, a plant extract, as an antibiotic alternative on swine production
*Zhuoyu Yang1, Peiwen Shi1, Kaiting Wang1, Xueyuan Li1, Tomotsugu Takahasi1, Yuriko Enomoto1, Junyou Li1 (1. Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo)
MGM-P, a condensed tannin from quebracho wood, as a plant extract with the characteristics of a low-cost and widespread source as well as antidiarrheal. The objective of this study was to evaluate the potential of MGM-P as a feed additive to alternative antibiotics and the effect of long-term supplementation on fattening pigs. The experiment lasted for 140 days, and 24 piglets were allocated into two groups. The tannin group added 0.75% MGM-P to the feed and the control group added Flavomycin, and in the grow-finish period, piglets in the control group were fed the diet without antibiotics. We examined the effects of tannin on aspects of post-weaning diarrhea, growth performance, and gut microbiome. There was no diarrhea found in the piglets in the treatment group, and the diarrhea rate was significantly lower than that in the control group (P<0.001). Furthermore, the growth performance had not significantly different between the two groups, which indicated that MGM-P can effectively alleviate post-weaning diarrhea and has no negative effect on growth performance during the weaning and grow-finishing period.