Cited by 257Ruminant Nutrition and Digestive PhysiologyGut microbiota and healthAnimal Nutrition and Physiology

Microbiome–metabolome analysis reveals unhealthy alterations in the composition and metabolism of ruminal microbiota with increasing dietary grain in a goat model

Mao, Sheng‐Yong, Huo, Wen‐Jie, Zhu, Wei‐Yun·2016·Environmental Microbiology

Abstract

Currently, knowledge about the impact of high-grain (HG) feeding on rumen microbiota and metabolome is limited. In this study, a combination of the 454 pyrosequencing strategy and the mass spectrometry-based metabolomics technique was applied to investigate the effects of increased dietary grain (0%, 25% and 50% maize grain) on changes in whole ruminal microbiota and their metabolites using goat as a ruminant model. We observed a significant influence of HG feeding in shaping the ruminal bacterial community structure, diversity and composition, with an overall dominance of bacteria of the phylum Firmicutes along with a low abundance of Bacteriodetes in the HG group. High-grain feeding increased the number of ciliate and methanogens, and decreased the density of anaerobic fungi and the richness of the archaeal community. The metabolomics analysis revealed that HG feeding increased the levels of several toxic, inflammatory and unnatural compounds, including endotoxin, tryptamine, tyramine, histamine and phenylacetate. Correlation analysis on the combined datasets revealed some potential relationships between ruminal metabolites and certain microbial species. Information about these relationships may prove useful in either direct (therapeutic) or indirect (dietary) interventions for ruminal disorders due to microbial compositional shifts, such as ruminal acidosis.

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Crossref · 10.1111/1462-2920.12724

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  • There are few studies to date combining both sequencing and metabolomics to provide a more comprehensive analysis of the rumen system.

    “However, there are few studies to date combining both sequencing and metabolomics to provide a more comprehensive analysis of the rumen system that would contribute information regarding metabolic expression of the genetic potential of the microbiota (Mao et al., 2016; Zhang J. et al., 2017; O'callaghan et al., 2018).”

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Authors
Mao, S., Huo, W., & Zhu, W.
Affiliations
Laboratory of Gastrointestinal Microbiology College of Animal Science and Technology Nanjing Agricultural University Nanjing 210095 Jiangsu China
Venue
Environmental Microbiology
Publisher
Wiley
Published
2015-02-03
Volume
18
Issue
2
Pages
525-541
ISSN
  • 1462-2912 (ISSN-L)
  • 1462-2920
OpenAlex
W1723262713
Cited by
257
References
68
Citations by year
2026: 15 · 2025: 15 · 2024: 20 · 2023: 15 · 2022: 30 · 2021: 37 · 2020: 41 · 2019: 24 · 2018: 25 · 2017: 20 · 2016: 12 · 2015: 3
FWCI
23.25
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Microbiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Key Basic Research Program of China (2011CB100801)
  • Natural Science Foundation of China (NSFC) (31172228)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Ruminant Nutrition and Digestive Physiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Nutrition and Physiology
Keywords
rumen microbiota, rumen metabolome, goats, maize grain, rumen ciliates, methanogenic archaea, anaerobic fungi, Firmicutes, Bacteroidetes, endotoxin, tryptamine, tyramine, histamine, phenylacetate, rumen acidosis
MeSH terms
Gastrointestinal Microbiome, Acidosis, Animals, Archaea, Bacteria, Edible Grain, Zea mays, Diet, Fungi, Goats, Rumen, Ciliophora, Metabolomics, Metabolome

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