Diet and feed efficiency status affect rumen microbial profiles of sheep

Ellison, Melinda J; Conant, Gavin C.; Lamberson, W. R.; Cockrum, Rebecca; Austin, Kathy J.; Rule, Daniel C.; Cammack, K. M.

doi:10.1016/j.smallrumres.2017.08.009

Cited by 61 publications

(54 citation statements)

References 36 publications

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“…Interestingly, one of these Archaea was an unclassified species of the Methanobrevibacter genus that was more abundant in high RFI calves. This is in agreement with data from Zhou et al (2009) but differs from Ellison et al (2017) , who reported an increased abundance of Methanobrevibacter smithii in low RFI lambs. An increase in methanogenic pathways has been associated with lowly efficient animals compared to highly efficient animals ( Shabat et al, 2016 ) and reduced methane emissions have been associated with selection based on improved RFI ( Basarab et al, 2013 ).…”

Section: Discussionsupporting

confidence: 91%

Influence of maternal factors on the rumen microbiome and subsequent host performance1

Cunningham

Austin

Cammack

2018

Translational Animal Science

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Section: Discussionsupporting

confidence: 91%

Influence of maternal factors on the rumen microbiome and subsequent host performance1

Cunningham

Austin

Cammack

2018

Translational Animal Science

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“…Species of Moryella [52] could produce VFAs using simple carbohydrates generated from fiber degradation by some rumen bacteria such as the Ruminococcaceae NK4A214 group, which was one of the major taxa in the inocula. Moryella species were also predominant in the rumen of forage-fed lambs, which was thought to be attributed to the digestion of fiber by fibrolytic microorganisms [53]. In this case, the rich supply of simple carbohydrates in the milk replacer (MR) might facilitate the establishment of (OTU232) Moryella before weaning, and its ability to utilize simple carbohydrates might explain the co-occurrence with some OTU biomarkers (such as OTU67 belongs to Ruminococcaceae NK4A214) in the rumen of IBW lambs after inoculation.…”

Section: Discussionmentioning

confidence: 99%

Repeated inoculation with fresh rumen fluid before or during weaning modulates the microbiota composition and co-occurrence of the rumen and colon of lambs

Zhang

Liu

et al. 2020

BMC Microbiol

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Background: Many recent studies have gravitated towards manipulating the gastrointestinal (GI) microbiome of livestock to improve host nutrition and health using dietary interventions. Few studies, however, have evaluated if inoculation with rumen fluid could effectively reprogram the development of GI microbiota. We hypothesized that inoculation with rumen fluid at an early age could modulate the development of GI microbiota because of its low colonization resistance. Results:In this study, we tested the above hypothesis using young lambs as a model. Young lambs were orally inoculated repeatedly (four times before or twice during gradual weaning) with the rumen fluid collected from adult sheep. The oral inoculation did not significantly affect starter intake, growth performance, or ruminal fermentation. Based on sequencing analysis of 16S rRNA gene amplicons, however, the inoculation (both before and during weaning) affected the assemblage of the rumen microbiota, increasing or enabling some bacterial taxa to colonize the rumen. These included operational taxonomic units (OTUs) belonging to Moryella, Acetitomaculum, Tyzzerella 4, Succiniclasticum, Prevotella 1, Lachnospiraceae, Christensenellaceae R-7 group, Family XIII AD3011, and Bacteroidales S24-7 corresponding to inoculation before weaning; and OTUs belonging to Succiniclasticum, Prevotellaceae UCG-003, Erysipelotrichaceae UCG-004, Prevotella 1, Bacteroidales S24-7 gut group uncultured bacterium, and candidate Family XIII AD3011 corresponding to inoculation during weaning. Compared to the inoculation during weaning, the inoculation before weaning resulted in more co-occurrences of OTUs that were exclusively predominant in the inoculum. However, inoculation during weaning appeared to have more impacts on the colonic microbiota than the inoculation before weaning. Considerable successions in the microbial colonization of the GI tracts accompanied the transition from liquid feed to solid feed during weaning.Conclusions: Repeated rumen fluid inoculation during early life can modulate the establishment of the microbiota in both the rumen and the colon and co-occurrence of some bacteria. Oral inoculation with rumen microbiota may be a useful approach to redirect the development of the microbiota in both the rumen and colon.

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“…Indeed, previous data indicate that more efficient animals have a less rich and diverse microbiome in both species and gene content ( Shabat et al, 2016 ). Several differences in specific microbial abundances have also been associated with divergence in feed efficiency in both cattle ( Guan et al, 2008 ; Myer et al, 2015 ) and sheep ( Ellison et al, 2015 ; Ellison et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

Investigation of maternal breed and rearing type on the calf rumen microbiome from day 28 through weaning1,2

Austin

Cunningham

Powell

et al. 2018

Translational Animal Science

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Diet and feed efficiency status affect rumen microbial profiles of sheep

Cited by 61 publications

References 36 publications

Influence of maternal factors on the rumen microbiome and subsequent host performance1

Influence of maternal factors on the rumen microbiome and subsequent host performance1

Repeated inoculation with fresh rumen fluid before or during weaning modulates the microbiota composition and co-occurrence of the rumen and colon of lambs

Investigation of maternal breed and rearing type on the calf rumen microbiome from day 28 through weaning1,2

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