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Dynamics of rumen bacterial composition of yak (Bos grunniens) in response to dietary supplements during the cold season

This study aimed to explore the rumen bacterial community of yak in response to dietary supplements during the cold season. In addition, the rumen fermentation products were also analyzed. Twenty-one female domestic yaks were randomly divided into three groups i.e., pure grazing (GG) group, grazing...

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Autores principales: Ahmad, Anum Ali, Zhang, Jian Bo, Liang, Zeyi, Yang, Chao, Kalwar, Qudratullah, Shah, Tariq, Du, Mei, Muhammad, Ishaq, Zheng, Juanshan, Yan, Ping, Ding, Xue-Zhi, Long, Ruijun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8216167/
https://www.ncbi.nlm.nih.gov/pubmed/34178446
http://dx.doi.org/10.7717/peerj.11520
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author Ahmad, Anum Ali
Zhang, Jian Bo
Liang, Zeyi
Yang, Chao
Kalwar, Qudratullah
Shah, Tariq
Du, Mei
Muhammad, Ishaq
Zheng, Juanshan
Yan, Ping
Ding, Xue-Zhi
Long, Ruijun
author_facet Ahmad, Anum Ali
Zhang, Jian Bo
Liang, Zeyi
Yang, Chao
Kalwar, Qudratullah
Shah, Tariq
Du, Mei
Muhammad, Ishaq
Zheng, Juanshan
Yan, Ping
Ding, Xue-Zhi
Long, Ruijun
author_sort Ahmad, Anum Ali
collection PubMed
description This study aimed to explore the rumen bacterial community of yak in response to dietary supplements during the cold season. In addition, the rumen fermentation products were also analyzed. Twenty-one female domestic yaks were randomly divided into three groups i.e., pure grazing (GG) group, grazing plus oats hay supplement (OG) group, and grazing plus concentrate supplement group (CG). Rumen contents were collected after 90 days to assess rumen fermentation parameters and bacterial community. The GC group presented higher concentrations of ammonia nitrogen (P < 0.001), and total volatile fatty acids (TVFA) (P < 0.001), and lower rumen pH (P < 0.001) compared to other experimental groups. The CG group displayed higher proportions of propionate, butyrate, isobutyrate, and isovalerate while lower A/P ratio compared to other experimental groups. Shannon, Chao1, and ACE values were significantly lower in the OG group compared to GG and CG groups. Anosim test showed significant differences in bacterial community structure between groups but the PCA plot was not very informative to see these differences. Bacteroidetes, Proteobacteria, and Firmicutes were the three dominant phyla in all groups. The genera Oscillospira was more abundant in GG and OG groups. Higher relative abundance of Ruminococcus and Clostridium was observed in the GG group, while Ruminobacter, Corynebacterium, and Selenomonas were more abundant in the CG group. These findings will help in improving our understanding of rumen bacteria in yaks in response to changes in diet.
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spelling pubmed-82161672021-06-25 Dynamics of rumen bacterial composition of yak (Bos grunniens) in response to dietary supplements during the cold season Ahmad, Anum Ali Zhang, Jian Bo Liang, Zeyi Yang, Chao Kalwar, Qudratullah Shah, Tariq Du, Mei Muhammad, Ishaq Zheng, Juanshan Yan, Ping Ding, Xue-Zhi Long, Ruijun PeerJ Agricultural Science This study aimed to explore the rumen bacterial community of yak in response to dietary supplements during the cold season. In addition, the rumen fermentation products were also analyzed. Twenty-one female domestic yaks were randomly divided into three groups i.e., pure grazing (GG) group, grazing plus oats hay supplement (OG) group, and grazing plus concentrate supplement group (CG). Rumen contents were collected after 90 days to assess rumen fermentation parameters and bacterial community. The GC group presented higher concentrations of ammonia nitrogen (P < 0.001), and total volatile fatty acids (TVFA) (P < 0.001), and lower rumen pH (P < 0.001) compared to other experimental groups. The CG group displayed higher proportions of propionate, butyrate, isobutyrate, and isovalerate while lower A/P ratio compared to other experimental groups. Shannon, Chao1, and ACE values were significantly lower in the OG group compared to GG and CG groups. Anosim test showed significant differences in bacterial community structure between groups but the PCA plot was not very informative to see these differences. Bacteroidetes, Proteobacteria, and Firmicutes were the three dominant phyla in all groups. The genera Oscillospira was more abundant in GG and OG groups. Higher relative abundance of Ruminococcus and Clostridium was observed in the GG group, while Ruminobacter, Corynebacterium, and Selenomonas were more abundant in the CG group. These findings will help in improving our understanding of rumen bacteria in yaks in response to changes in diet. PeerJ Inc. 2021-06-18 /pmc/articles/PMC8216167/ /pubmed/34178446 http://dx.doi.org/10.7717/peerj.11520 Text en ©2021 Ahmad et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.
spellingShingle Agricultural Science
Ahmad, Anum Ali
Zhang, Jian Bo
Liang, Zeyi
Yang, Chao
Kalwar, Qudratullah
Shah, Tariq
Du, Mei
Muhammad, Ishaq
Zheng, Juanshan
Yan, Ping
Ding, Xue-Zhi
Long, Ruijun
Dynamics of rumen bacterial composition of yak (Bos grunniens) in response to dietary supplements during the cold season
title Dynamics of rumen bacterial composition of yak (Bos grunniens) in response to dietary supplements during the cold season
title_full Dynamics of rumen bacterial composition of yak (Bos grunniens) in response to dietary supplements during the cold season
title_fullStr Dynamics of rumen bacterial composition of yak (Bos grunniens) in response to dietary supplements during the cold season
title_full_unstemmed Dynamics of rumen bacterial composition of yak (Bos grunniens) in response to dietary supplements during the cold season
title_short Dynamics of rumen bacterial composition of yak (Bos grunniens) in response to dietary supplements during the cold season
title_sort dynamics of rumen bacterial composition of yak (bos grunniens) in response to dietary supplements during the cold season
topic Agricultural Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8216167/
https://www.ncbi.nlm.nih.gov/pubmed/34178446
http://dx.doi.org/10.7717/peerj.11520
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