Fiber-rich foods affected gut bacterial community and short-chain fatty acids production in pig model
2019
Zhao, Jinbiao | Bai, Yu | Tao, Shiyu | Zhang, Gang | Wang, Junjun | Liu, Ling | Zhang, Shuai
This study aimed to explore effects of different fiber-rich foods on bacterial community and their metabolites in pig model. Thirty-six pigs were allotted to 6 dietary treatments including corn bran (CB), wheat bran (WB), oat bran (OB), soybean hulls (SH), sugar beet pulp (SBP) and rice bran (RB). The results demonstrated that lactate was mainly produced in the foregut, whereas propionate and butyrate were generated in the hindgut of pig. The ileal acetate and fecal butyrate production were positively correlated with the dietary acid detergent fiber and cellulose content, respectively. Different dietary fiber supplementation altered Filifactor and Intestinibacter abundances in ileal digesta and Ruminococcus_1 and Lachnoclostridium populations in feces of pigs. The differences in fiber fermentation and SCFAs production in ileal and fecal samples were associated with microbial compositions. Overall, this study would help to better understand how to promote the gut health through different fiber-rich foods intake in humans.
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