Persistence of Cellulolytic Bacteria Fibrobacter and Treponema After Short-Term Corn Stover-Based Dietary Intervention Reveals the Potential to Improve Rumen Fibrolytic Function

Frontiers in Microbiology
Xiao XieJian X Liu

Abstract

Limited lignocellulose degradation is the primary obstacle to feed digestion efficiency in ruminant animals. Low-quality forage with high levels of fibrous components can favor the proliferation of fibrolytic bacteria, but whether this can result a profound microbial shift after dietary intervention remains unclear. In this study, we monitored the microbial communities in the rumens of five ruminally cannulated Hu sheep through dietary transition from alfalfa hay (AH, pre-CS) to corn stover (CS, post-CS) and then back to AH (post-AH), with each treatment lasting for 14 days. The CS intervention significantly increased the relative abundance of microorganisms involved in lignocellulose degradation, including Fibrobacter and Treponema. When the diet was switched back to AH, the microbial community did not completely return to a pre-CS treatment state. In the post-AH microbial community, the relative abundances of Fibrobacter and Treponema were persistently high, and were similar to those in the post-CS community. Meanwhile, the diversity of the microbial community increased after dietary transition from AH to CS and remained significantly higher after transition from CS to AH compared to those under the original AH diet. Enzyme a...Continue Reading

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Citations

Feb 23, 2020·Journal of the Science of Food and Agriculture·Luis Alberto Miranda-RomeroAbdelfattah Z M Salem
Sep 29, 2020·Frontiers in Microbiology·Steven McLoughlinSinéad M Waters
May 15, 2019·Animals : an Open Access Journal From MDPI·Ibukun OgunadeHank Schweickart
Jun 26, 2020·Journal of Animal Science and Biotechnology·Tansol ParkZhongtang Yu
Dec 17, 2020·Microorganisms·Idoia GoiriAser García-Rodríguez
Mar 5, 2021·Scientific Reports·Núria MachAlice Ruet
Jun 12, 2021·Frontiers in Microbiology·Mads Borgbjerg JensenMichael Vedel Wegener Kofoed
Jul 14, 2021·Scientific Reports·Vorthon SawaswongSunchai Payungporn

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Methods Mentioned

BETA
Assay
PCA
NMR

Software Mentioned

PyNAST
Cytoscape
Random Matrix Theory
FastTree
Molecular Ecological Network Analyses Pipeline ( MENAP )
USEARCH
vegan
R ComplexHeatmap
LEfSe
DESeq2

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