Cited by 124Ruminant Nutrition and Digestive PhysiologyAnimal Nutrition and PhysiologyMetabolomics and Mass Spectrometry Studies

Rumen fluid metabolomics analysis associated with feed efficiency on crossbred steers

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Artegoitia, Virginia M., Foote, Andrew P., Lewis, Ronald M., Freetly, Harvey C.·2017·Scientific Reports

Abstract

The rumen has a central role in the efficiency of digestion in ruminants. To identify potential differences in rumen function that lead to differences in average daily gain (ADG), rumen fluid metabolomic analysis by LC-MS and multivariate/univariate statistical analysis were used to identify differences in rumen metabolites. Individual feed intake and body-weight was measured on 144 steers during 105 d on a high concentrate ration. Eight steers with the greatest ADG and 8 steers with the least-ADG with dry matter intake near the population average were selected. Blood and rumen fluid was collected from the 16 steers 26 d before slaughter and at slaughter, respectively. As a result of the metabolomics analysis of rumen fluid, 33 metabolites differed between the ADG groups based on t-test, fold changes and partial least square discriminant analysis. These metabolites were primarily involved in linoleic and alpha-linolenic metabolism (impact-value 1.0 and 0.75, respectively; P < 0.05); both pathways were down-regulated in the greatest-ADG compared with least-ADG group. Ruminal biohydrogenation might be associated with the overall animal production. The fatty acids were quantified in rumen and plasma using targeted MS to validate and evaluate the simple combination of metabolites that effectively predict ADG.

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  1. [15]Harfoot, C. G. & Hazlewood, G. P. In The Rumen Microbial Ecosystem (eds Hobson, P. N. & Stewart, C. S.) 382–426 (Springer Netherlands, 1997).

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Authors
Artegoitia, V. M., Foote, A. P., Lewis, R. M., & Freetly, H. C.
Affiliations
  • University of Nebraska–Lincoln (US)
  • Roman L. Hruska U.S. Meat Animal Research Center (US)
Corresponding author
Freetly, Harvey C.
Venue
Scientific Reports
Published
2017-06-06
Volume
7
Issue
1
Pages
2864-2864
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2553397641
Cited by
123
References
37
Citations by year
2026: 7 · 2025: 4 · 2024: 32 · 2023: 15 · 2022: 15 · 2021: 16 · 2020: 15 · 2019: 7 · 2018: 11 · 2016: 1
FWCI
15.70
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Lincoln (University of Nebraska) (submittedVersion)
  • Lincoln (University of Nebraska) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
U.S. Department of Agriculture
Topics
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Ruminant Nutrition and Digestive Physiology
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Nutrition and Physiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolomics and Mass Spectrometry Studies
Keywords
feed efficiency, average daily gain, crossbred steers, high-concentrate diet, linoleic acid metabolism, alpha-linolenic acid metabolism, ruminal biohydrogenation, fatty acids, rumen metabolites, growth performance prediction
MeSH terms
Animals, Animal Feed, Breeding, Cattle, Crosses, Genetic, Fatty Acids, ROC Curve, Rumen, Extracellular Fluid, Metabolic Networks and Pathways, Metabolomics, Metabolome

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