Does the rumen microbiome play a role in feed efficiency of beef cattle?

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

8 Scopus Citations
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Author(s)

  • F. Li
  • M. Zhou
  • K. Ominski
  • L. L. Guan

Detail(s)

Original languageEnglish
Pages (from-to)44-48
Journal / PublicationJournal of Animal Science
Volume94
Publication statusPublished - 1 Nov 2016
Externally publishedYes

Abstract

Many factors can affect animal feed efficiency which is one of the important economic traits in the beef industry. To date, our understanding of the role of the rumen microbiota and its impact on feed efficiency is largely unknown. The objective of this paper was to determine if the rumen microbiota is associated with residual feed intake (RFI) by studying the metatranscriptome of the rumen microbiome from cattle with different RFI values. The microbial transcriptome profiles revealed that Succinivibrionaceae and Methanomassiliicoccales were the most active microbial phylotypes, occupying approximately 44.1% and 35.6% of the bacterial and archaeal communities in the rumen of steers fed with barley-based diet, respectively. Further, the relative abundance of Lachnospiraceae, Veillonel-laceae, and p-2534-18B5 bacterial families and Methanomassiliicoccales archaeal taxa were different between low RFI (L-RFI; efficient) and high RFI (H-RFI; inefficient) beef steers. The microbiome of L-RFI animals possessed characteristics associated with higher metabolic function and cell survivability, suggesting that enhanced fermentation capacity and adaptability of the microbiome may be key factors to improve nutrient availability. Our results provide evidence that the rumen microbiome could be one of the biological factors associated with variation in cattle feed efficiency.

Research Area(s)

  • Cattle, Feed efficiency, Metatranscriptome, Residual feed intake, Rumen microbiota

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Does the rumen microbiome play a role in feed efficiency of beef cattle? / Li, F.; Zhou, M.; Ominski, K.; Guan, L. L.

In: Journal of Animal Science, Vol. 94, 01.11.2016, p. 44-48.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review