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Role of Age-Related Shifts in Rumen Bacteria and Methanogens in Methane Production in Cattle

Rumen microbiota are essential for maintaining digestive and metabolic functions, producing methane as a byproduct. Dairy heifers produce large amounts of methane based on fermentation of digested organic matter, with adverse consequences for feed efficiency and the environment. It is therefore impo...

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Autores principales: Liu, Chong, Meng, Qinghui, Chen, Yongxing, Xu, Mengsi, Shen, Min, Gao, Rui, Gan, Shangquan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5557790/
https://www.ncbi.nlm.nih.gov/pubmed/28855896
http://dx.doi.org/10.3389/fmicb.2017.01563
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author Liu, Chong
Meng, Qinghui
Chen, Yongxing
Xu, Mengsi
Shen, Min
Gao, Rui
Gan, Shangquan
author_facet Liu, Chong
Meng, Qinghui
Chen, Yongxing
Xu, Mengsi
Shen, Min
Gao, Rui
Gan, Shangquan
author_sort Liu, Chong
collection PubMed
description Rumen microbiota are essential for maintaining digestive and metabolic functions, producing methane as a byproduct. Dairy heifers produce large amounts of methane based on fermentation of digested organic matter, with adverse consequences for feed efficiency and the environment. It is therefore important to understand the influence of host age on the relationship between microbiota and methane production. This study explored the age effect on the relationship between microbial communities and enteric methane production in dairy cows and heifers using high-throughput sequencing. Methane production and volatile fatty acid concentrations were age-related. Heifers (9–10 months) had lower methane production but higher methane production per dry matter intake (DMI). The acetate:propionate ratio decreased significantly with increasing age. Age-related microbiota changes in the rumen were reflected by a significant shift in bacterial taxa, but relatively stable archaeal taxa. Prevotella, Ruminococcus, Flavonifractor, Succinivibrio, and Methanobrevibacter were affected by age. This study revealed different associations between predominant bacterial phylotypes and Methanobrevibacter with increasing age. Prevotella was strongly correlated with Methanobrevibacter in heifers; howerver, in older cows (96–120 months) this association was replaced by a correlation between Succinivibrio and Methanobrevibacter. This shift may account for the age-related difference in rumen fermentation and methane production per DMI.
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spelling pubmed-55577902017-08-30 Role of Age-Related Shifts in Rumen Bacteria and Methanogens in Methane Production in Cattle Liu, Chong Meng, Qinghui Chen, Yongxing Xu, Mengsi Shen, Min Gao, Rui Gan, Shangquan Front Microbiol Microbiology Rumen microbiota are essential for maintaining digestive and metabolic functions, producing methane as a byproduct. Dairy heifers produce large amounts of methane based on fermentation of digested organic matter, with adverse consequences for feed efficiency and the environment. It is therefore important to understand the influence of host age on the relationship between microbiota and methane production. This study explored the age effect on the relationship between microbial communities and enteric methane production in dairy cows and heifers using high-throughput sequencing. Methane production and volatile fatty acid concentrations were age-related. Heifers (9–10 months) had lower methane production but higher methane production per dry matter intake (DMI). The acetate:propionate ratio decreased significantly with increasing age. Age-related microbiota changes in the rumen were reflected by a significant shift in bacterial taxa, but relatively stable archaeal taxa. Prevotella, Ruminococcus, Flavonifractor, Succinivibrio, and Methanobrevibacter were affected by age. This study revealed different associations between predominant bacterial phylotypes and Methanobrevibacter with increasing age. Prevotella was strongly correlated with Methanobrevibacter in heifers; howerver, in older cows (96–120 months) this association was replaced by a correlation between Succinivibrio and Methanobrevibacter. This shift may account for the age-related difference in rumen fermentation and methane production per DMI. Frontiers Media S.A. 2017-08-14 /pmc/articles/PMC5557790/ /pubmed/28855896 http://dx.doi.org/10.3389/fmicb.2017.01563 Text en Copyright © 2017 Liu, Meng, Chen, Xu, Shen, Gao and Gan. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Liu, Chong
Meng, Qinghui
Chen, Yongxing
Xu, Mengsi
Shen, Min
Gao, Rui
Gan, Shangquan
Role of Age-Related Shifts in Rumen Bacteria and Methanogens in Methane Production in Cattle
title Role of Age-Related Shifts in Rumen Bacteria and Methanogens in Methane Production in Cattle
title_full Role of Age-Related Shifts in Rumen Bacteria and Methanogens in Methane Production in Cattle
title_fullStr Role of Age-Related Shifts in Rumen Bacteria and Methanogens in Methane Production in Cattle
title_full_unstemmed Role of Age-Related Shifts in Rumen Bacteria and Methanogens in Methane Production in Cattle
title_short Role of Age-Related Shifts in Rumen Bacteria and Methanogens in Methane Production in Cattle
title_sort role of age-related shifts in rumen bacteria and methanogens in methane production in cattle
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5557790/
https://www.ncbi.nlm.nih.gov/pubmed/28855896
http://dx.doi.org/10.3389/fmicb.2017.01563
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