Rumen microbiome from steers differing in feed efficiency.
TLDR
The involvement of the rumen microbiome as a component influencing the efficiency of weight gain at the 16S level is suggested to better understand variations in microbial ecology as well as host factors that will improve feed efficiency.Abstract:
The cattle rumen has a diverse microbial ecosystem that is essential for the host to digest plant material. Extremes in body weight (BW) gain in mice and humans have been associated with different intestinal microbial populations. The objective of this study was to characterize the microbiome of the cattle rumen among steers differing in feed efficiency. Two contemporary groups of steers (n=148 and n=197) were fed a ration (dry matter basis) of 57.35% dry-rolled corn, 30% wet distillers grain with solubles, 8% alfalfa hay, 4.25% supplement, and 0.4% urea for 63 days. Individual feed intake (FI) and BW gain were determined. Within contemporary group, the four steers within each Cartesian quadrant were sampled (n=16/group) from the bivariate distribution of average daily BW gain and average daily FI. Bacterial 16S rRNA gene amplicons were sequenced from the harvested bovine rumen fluid samples using next-generation sequencing technology. No significant changes in diversity or richness were indicated, and UniFrac principal coordinate analysis did not show any separation of microbial communities within the rumen. However, the abundances of relative microbial populations and operational taxonomic units did reveal significant differences with reference to feed efficiency groups. Bacteroidetes and Firmicutes were the dominant phyla in all ruminal groups, with significant population shifts in relevant ruminal taxa, including phyla Firmicutes and Lentisphaerae, as well as genera Succiniclasticum, Lactobacillus, Ruminococcus, and Prevotella. This study suggests the involvement of the rumen microbiome as a component influencing the efficiency of weight gain at the 16S level, which can be utilized to better understand variations in microbial ecology as well as host factors that will improve feed efficiency.read more
Citations
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Journal ArticleDOI
Exploring a possible link between the intestinal microbiota and feed efficiency in pigs
Ursula M. McCormack,Ursula M. McCormack,Tânia Curiao,Stefan G. Buzoianu,Maria Luz Prieto,Tomas Ryan,Patrick Varley,Fiona Crispie,Elizabeth Magowan,Barbara U. Metzler-Zebeli,Donagh P. Berry,Orla O'Sullivan,Paul D. Cotter,Gillian E. Gardiner,Peadar G. Lawlor +14 more
TL;DR: This study is one of the first to show that differences in intestinal microbiota composition, albeit subtle, may partly explain improved feed efficiency (FE) in low residual feed intake (RFI) pigs.
Journal ArticleDOI
Host genetics influence the rumen microbiota and heritable rumen microbial features associate with feed efficiency in cattle
Fuyong Li,Changxi Li,Changxi Li,Yanhong Chen,Junhong Liu,Chunyan Zhang,Barry Irving,Carolyn Fitzsimmons,Carolyn Fitzsimmons,Graham Plastow,Le Luo Guan +10 more
TL;DR: These findings suggest that some rumen microbial features are heritable and could be influenced by host genetics, highlighting a potential to manipulate and obtain a desirable and efficient rumen microbiota using genetic selection and breeding.
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The ruminal microbiome associated with methane emissions from ruminant livestock.
TL;DR: The microbiome analysis is consistent with known pathways for H2 production and methanogenesis, but not yet in a predictive manner, and the production and utilisation of formate by the ruminal microbiota is poorly understood and may be a source of variability between animals.
Journal ArticleDOI
Metatranscriptomic Profiling Reveals Linkages between the Active Rumen Microbiome and Feed Efficiency in Beef Cattle.
Fuyong Li,Le Luo Guan +1 more
TL;DR: The findings that the active rumen microbiome may contribute to variations in feed efficiency of beef cattle highlight the possibility of enhancing nutrient utilization and improve cattle feed efficiency through modification of rumen microbial functions.
Journal ArticleDOI
A heritable subset of the core rumen microbiome dictates dairy cow productivity and emissions
R. John Wallace,Goor Sasson,Philip C. Garnsworthy,Ilma Tapio,Emma Gregson,Paolo Bani,Pekka Huhtanen,Ali R. Bayat,Francesco Strozzi,Filippo Biscarini,Timothy J. Snelling,N. Saunders,Sarah L. Potterton,Jim Craigon,Andrea Minuti,Erminio Trevisi,Maria Luisa Callegari,Fiorenzo Piccioli Cappelli,E.H. Cabezas-Garcia,Johanna Vilkki,C. S. Pinares-Patiño,K. Fliegerová,Jakub Mrázek,Hana Sechovcová,Jan Kopečný,Aurélie Bonin,Frédéric Boyer,Pierre Taberlet,Fotini Kokou,Eran Halperin,John L. Williams,Kevin J. Shingfield,Itzhak Mizrahi +32 more
TL;DR: The heritable core microbes, therefore, present primary targets for rumen manipulation toward sustainable and environmentally friendly agriculture.
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