Diet with a High Proportion of Rice Alters Profiles and Potential Function of Digesta-Associated Microbiota in the Ileum of Goats

Effects of a high proportion of concentrate in the diet on the ileal microbiota and metabolites in small ruminants are rarely reported. This study was designed to investigate the ileal microbiota and its relationship with host metabolic function in goats and aimed to elucidate the mechanisms involvi...

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Main Authors: Kaijun Wang, Ao Ren, Mengli Zheng, Jinzhen Jiao, Qiongxian Yan, Chuanshe Zhou, Zhiliang Tan
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/10/8/1261
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author Kaijun Wang
Ao Ren
Mengli Zheng
Jinzhen Jiao
Qiongxian Yan
Chuanshe Zhou
Zhiliang Tan
author_facet Kaijun Wang
Ao Ren
Mengli Zheng
Jinzhen Jiao
Qiongxian Yan
Chuanshe Zhou
Zhiliang Tan
author_sort Kaijun Wang
collection DOAJ
description Effects of a high proportion of concentrate in the diet on the ileal microbiota and metabolites in small ruminants are rarely reported. This study was designed to investigate the ileal microbiota and its relationship with host metabolic function in goats and aimed to elucidate the mechanisms involving in the ileal adaptation to a diet containing a high proportion of rice. Sixteen goats were equally divided into two groups and fed a diet with a normal concentrate proportion (NC, 55% concentrate) or a high-concentrate diet (HC, 90% concentrate). Results showed that the HC diet decreased bacterial diversity and elevated the abundance of five genera (<i>Clostridium</i>_<i>sensu</i>_<i>stricto</i>_<i>1</i>, <i>Eubacterium</i>_<i>nodatum</i>_group, <i>Ruminococcus</i>_<i>gauvreauii</i>_group, <i>Eubacterium</i>_<i>coprostanoligenes</i>_group and <i>Ruminococcus</i> 1), but reduced the number of Anaerotruncus. Microbial functional potentials indicated that the HC diet activated the pathways related to metabolism of carbohydrate, glycan, lipid and vitamins, but inhibited the pathways associated with cell motility and signal transduction. The activities of amylase and alkaline phosphatase were greater (<i>p</i> < 0.05) in the intestinal digesta of the HC-fed goats. However, there were no differences in the villus height, crypt depth and the ratio of villus height to crypt depth in the ileum between the two groups. These results indicate that the HC diet alters the bacterial community and pathways related to the metabolism of dietary nutrients and cell motility and signal transduction of bacteria in the ileum of goats.
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spelling doaj.art-7aff279663264c63bb25827ced7454792023-11-20T07:52:59ZengMDPI AGAnimals2076-26152020-07-01108126110.3390/ani10081261Diet with a High Proportion of Rice Alters Profiles and Potential Function of Digesta-Associated Microbiota in the Ileum of GoatsKaijun Wang0Ao Ren1Mengli Zheng2Jinzhen Jiao3Qiongxian Yan4Chuanshe Zhou5Zhiliang Tan6CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutrition & Physiology and Metabolism, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha 410125, ChinaCAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutrition & Physiology and Metabolism, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha 410125, ChinaCAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutrition & Physiology and Metabolism, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha 410125, ChinaCAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutrition & Physiology and Metabolism, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha 410125, ChinaCAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutrition & Physiology and Metabolism, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha 410125, ChinaCAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutrition & Physiology and Metabolism, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha 410125, ChinaCAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutrition & Physiology and Metabolism, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha 410125, ChinaEffects of a high proportion of concentrate in the diet on the ileal microbiota and metabolites in small ruminants are rarely reported. This study was designed to investigate the ileal microbiota and its relationship with host metabolic function in goats and aimed to elucidate the mechanisms involving in the ileal adaptation to a diet containing a high proportion of rice. Sixteen goats were equally divided into two groups and fed a diet with a normal concentrate proportion (NC, 55% concentrate) or a high-concentrate diet (HC, 90% concentrate). Results showed that the HC diet decreased bacterial diversity and elevated the abundance of five genera (<i>Clostridium</i>_<i>sensu</i>_<i>stricto</i>_<i>1</i>, <i>Eubacterium</i>_<i>nodatum</i>_group, <i>Ruminococcus</i>_<i>gauvreauii</i>_group, <i>Eubacterium</i>_<i>coprostanoligenes</i>_group and <i>Ruminococcus</i> 1), but reduced the number of Anaerotruncus. Microbial functional potentials indicated that the HC diet activated the pathways related to metabolism of carbohydrate, glycan, lipid and vitamins, but inhibited the pathways associated with cell motility and signal transduction. The activities of amylase and alkaline phosphatase were greater (<i>p</i> < 0.05) in the intestinal digesta of the HC-fed goats. However, there were no differences in the villus height, crypt depth and the ratio of villus height to crypt depth in the ileum between the two groups. These results indicate that the HC diet alters the bacterial community and pathways related to the metabolism of dietary nutrients and cell motility and signal transduction of bacteria in the ileum of goats.https://www.mdpi.com/2076-2615/10/8/1261bacterial communityhigh-concentrate dietgoatintestinemetabolites
spellingShingle Kaijun Wang
Ao Ren
Mengli Zheng
Jinzhen Jiao
Qiongxian Yan
Chuanshe Zhou
Zhiliang Tan
Diet with a High Proportion of Rice Alters Profiles and Potential Function of Digesta-Associated Microbiota in the Ileum of Goats
Animals
bacterial community
high-concentrate diet
goat
intestine
metabolites
title Diet with a High Proportion of Rice Alters Profiles and Potential Function of Digesta-Associated Microbiota in the Ileum of Goats
title_full Diet with a High Proportion of Rice Alters Profiles and Potential Function of Digesta-Associated Microbiota in the Ileum of Goats
title_fullStr Diet with a High Proportion of Rice Alters Profiles and Potential Function of Digesta-Associated Microbiota in the Ileum of Goats
title_full_unstemmed Diet with a High Proportion of Rice Alters Profiles and Potential Function of Digesta-Associated Microbiota in the Ileum of Goats
title_short Diet with a High Proportion of Rice Alters Profiles and Potential Function of Digesta-Associated Microbiota in the Ileum of Goats
title_sort diet with a high proportion of rice alters profiles and potential function of digesta associated microbiota in the ileum of goats
topic bacterial community
high-concentrate diet
goat
intestine
metabolites
url https://www.mdpi.com/2076-2615/10/8/1261
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