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Prevotella-rich enterotype may benefit gut health in finishing pigs fed diet with a high amylose-to-amylopectin ratio

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Animal Nutrition 2021年第2期7卷 400-411页

作者： Wen Ren Honglin Yan Bing Yu Maria C.Walsh Jie Yu Ping Zheng Zhiqing Huang Junqiu Luo Xiangbing Mao Jun He Hui Yan Daiwen Chen Yuheng Luo Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of ChinaKey Laboratory of Animal Disease-resistant Nutrition of Sichuan ProvinceAnd Animal Nutrition InstituteSichuan Agricultural UniversityChengdu 611130China DSM(China)Animal Nutrition Research Center Co. LtdBazhou 065799China School of Life Science and Engineering Southwest University of Science and TechnologyMianyangSichuan 621010China DSM Nutritional Products Kaiseraugst 4303Switzerland

To investigate the influence of baseline enterotypes and dietary starch type on the concentration of short-chain fatty acids(SCFA),numbers of butyrate producing bacteria and the expression of genes related to intestinal barrier and inflammatory response in the colon of finishing pigs,a 60-d in vivo trial was conducted.A 2-wk pre-trial with 102 crossbred(Duroc×[Landrace×Yorkshire])finishing barrows(90 d old)was conducted to screen ***,a total of 32 pigs(87.40±2.76 kg)with high(HPBR,>14)and low(LPBR,ratios(PBR)in equal measure were selected and randomly divided into 4 groups with 8 replicates per group and 1 pig per *** trial was designed following a 2(PBR)×2(amylose-to-amylopectin ratio,AMR)factorial *** with different PBR were fed diets based on corn-soybean meal with high AMR(HAMR,1.24)or low AMR(LAMR,0.23),*** showed that neither PBR nor AMR influenced the growth performance of *** pigs fed HAMR diet had a higher number of colonic Clostridium cluster XIVa and higher gene expression of butyrate kinase compared to the LPBR pigs(Prations of total SCFA and propionate compared to the LPBR pigs(Pration and absorption of SCFA,which may be associated with the decreased gene expression of inflammatory cytokines in the colonic mucosa of pigs with Prevotella-rich *** these alterations are likely to have a pos

关键词： Enterotype amylose-to-amylopectin ratio Gut health Finishing pig

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