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HOME > J. Microbiol > Volume 58(6); 2020 > Article
Journal Article
Impact of feeding regimens on the composition of gut microbiota and metabolite profiles of plasma and feces from Mongolian sheep
Bohui Wang 1,2, Yulong Luo 1, Rina Su 1, Duo Yao 1, Yanru Hou 1, Chang Liu 1, Rui Du 1, Ye Jin 1
Journal of Microbiology 2020;58(6):472-482.
DOI: https://doi.org/10.1007/s12275-020-9501-0
Published online: April 22, 2020
1College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, P. R. China , 2Ordos City Food Inspection and Testing Center, Ordos, 017000, P. R. China1College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, P. R. China , 2Ordos City Food Inspection and Testing Center, Ordos, 017000, P. R. China
Corresponding author:  Ye Jin , Tel: +86-04714309230, 
Received: 25 October 2019   • Revised: 17 February 2020   • Accepted: 25 February 2020
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Abstract

Mongolian sheep are an indigenous ruminant raised for wool and meat production in China. The gut microbial community plays an important role in animal performance and metabolism. The objective of this study was to investigate the effects of two feeding regimens on the diversity and composition of gut microbiota and metabolite profiles of feces and plasma from Mongolian sheep. A total of 20 Mongolian sheep were assigned to one of two feeding regimens: free grazing (FG) and barn confinement (BC). When samples were collected, the average live weights of the sheep were 31.28 ± 1.56 kg and 34.18 ± 1.87 kg for the FG and BC groups, respectively. At the genus level, the FG group showed higher levels of Bacteroides, RC9_gut_group, Alistipes, Phocaeicola, Barnesiella, and Oscillibacter, and lower levels of Succinivibrio, Treponema, and Prevotella, compared to the BC group. The butyric acid content in feces was lower in the FG group (P < 0.05). Higher levels of palmitic acid, oleic acid, alpha-linolenic acid, L-carnitine, L-citrulline, and L-histidine, and lower levels of L-tyrosine, L-phenylalanine, and L-kynurenine were found in the plasma of the FG sheep. Moreover, there were substantial associations between several gut microbiota genera and alterations in feces and plasma metabolites especially those involved in the metabolism of butyric acid, linolenic acid, and L-tyrosine. Feeding regimens can not only influence the composition of gut microbiota, but also alter metabolic homeostasis in sheep.

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    Impact of feeding regimens on the composition of gut microbiota and metabolite profiles of plasma and feces from Mongolian sheep
    J. Microbiol. 2020;58(6):472-482.   Published online April 22, 2020
    DOI: https://doi.org/10.1007/s12275-020-9501-0
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