Cecum microbial communities from steers differing in feed efficiency.

@article{Myer2015CecumMC,
  title={Cecum microbial communities from steers differing in feed efficiency.},
  author={Phillip R. Myer and James E Wells and T. P. L. Smith and Larry A. Kuehn and Harvey C. Freetly},
  journal={Journal of animal science},
  year={2015},
  volume={93 11},
  pages={
          5327-40
        }
}
Apart from the rumen, limited knowledge exists regarding the structure and function of bacterial communities within the gastrointestinal tract and their association with beef cattle feed efficiency. The objective of this study was to characterize the microbial communities of the cecum among steers differing in feed efficiency. Within 2 contemporary groups of steers, individual feed intake and BW gain were determined from animals fed the same diet. Within both of 2 contemporary groups, BW was… 
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Results Citations
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31 Citations

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Citation Type

Microbial community profiles of the jejunum from steers differing in feed efficiency.
TLDR
The association of the jejunum microbial community as a factor influencing feed efficiency at the 16S level is suggested and identified jejunal microbial associations with feed efficiency, ADG, and ADFI.
Evaluation of the Fecal Bacterial Communities of Angus Steers With Divergent Feed Efficiencies Across the Lifespan From Weaning to Slaughter
TLDR
The results indicate that despite fluctuations due to animal age and dietary changes, specific bacterial families may be correlated with feed efficiency of steers and may be identifiable at earlier stages of the production cycle, potentially as early as weaning.
The impact of feed efficiency selection on the ruminal, cecal, and fecal microbiomes of Angus steers from a commercial feedlot.
TLDR
Results collectively indicate that in addition to the ruminal bacteria, the lower gut bacterial population has a significant impact on feed efficiency and nutrient utilization in feedlot steers, therefore the intestinal bacteria should also be considered when examining the basis of ruminant feed efficiency.
Ruminal Protozoal Populations of Angus Steers Differing in Feed Efficiency
TLDR
Differences were observed between low- and high-RFI steers in protozoal community phylogenetic diversity, including weighted beta-diversity, Faith’s phylogenetic Diversity, and observed Operational taxonomic unit (OTU) (p = 0.03); these data suggest that unidentified protozoa and ciliated protozal community diversity influence feed efficiency in beef steers.
The Bacterial and Fungal Microbiota of Nelore Steers Is Dynamic Across the Gastrointestinal Tract and Its Fecal-Associated Microbiota Is Correlated to Feed Efficiency
TLDR
It is found that only the bacterial microbiota clustered according to each GIT segment, and differences in fecal-associated bacterial OTUs between steers from different feed efficiency groups are revealed, suggesting that fecal sampling may represent a non-invasive strategy to link the bovine microbiota with productivity phenotypes.
Digestive tract microbiota of beef cattle that differed in feed efficiency.
TLDR
The hypothesis that intestinal differences in microbiota of ruminants may be associated with animal performance is suggested, as well as the need for further research into this topic.
Comparison of microbial diversity in rumen and small intestine of Xinong Saanen dairy goats using 16S rRNA gene high-throughput sequencing
TLDR
The findings provided information for further exploring the relationship among genes, species and functions of microorganisms and their hosts’ nutritional and physiological functions, as well as clarified the differences in microbial diversity and community structure between the rumen and the jejunum in Xinong Saanen dairy goats.
Analysis of the gut bacterial communities in beef cattle and their association with feed intake, growth, and efficiency.
TLDR
This review addresses recent research regarding the bacterial communities along the gastrointestinal tract of beef cattle; their association with ADG, ADFI, and feed efficiency; and the potential implications for beef production.
Bacterial community and metabolome shifts in the cecum and colon of captive sika deer (Cervus nippon) from birth to post weaning
TLDR
The data document the development of the bacterial community and the metabolites in the cecum and colon of sika deer, and suggest a possible importance of ecology niche on gut development.
Dynamic changes of the fecal bacterial community in dairy cows during early lactation
TLDR
The dynamics of the community structure and composition of the dairy cow fecal bacterial communities during early lactation is unclear, and 16S rRNA gene sequencing helps improve the understanding of the composition and structure of the fecal microbial community in fresh cows.
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