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Open AccessArticle

The Rumen Specific Bacteriome in Dry Dairy Cows and Its Possible Relationship with Phenotypes

1
Department of Veterinary Medicine, National Chung Hsing University, Taichung 402, Taiwan
2
Department of Animal Science and Technology, National Taiwan University, Taipei 106, Taiwan
3
Department of Wood Based Materials and Design, National Chiayi University, Chiayi 600, Taiwan
4
Biotools Co., Ltd., New Taipei City 221, Taiwan
5
Hengchun Branch, Livestock Research Institute, Council of Agriculture, Executive Yuan, Pingtung 946, Taiwan
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Animals 2020, 10(10), 1791; https://doi.org/10.3390/ani10101791
Received: 13 August 2020 / Revised: 27 September 2020 / Accepted: 29 September 2020 / Published: 1 October 2020
(This article belongs to the Special Issue Feed Efficiency and Rumen Bacteria of Cattle)
The aim of this study was to investigate the importance of the relationships among hosts, microbiota, and diet composition in dry dairy cows. Therefore, the composition of the rumen microbiome in cows from three dairy farms was investigated to identify core bacteria contributing to various physiological roles during rumen fermentation in dry dairy cows. Our results revealed that the ruminal fluid in dry dairy cows from different regional farms had core rumen microbiota that could be clearly distinguished from that of cows of the other farms.
Most microbiome studies of dairy cows have investigated the compositions and functions of rumen microbial communities in lactating dairy cows. The importance of the relationships among hosts, microbiota, diet composition, and milk production remains unknown in dry dairy cows. Thus, in the present study, the composition of the rumen microbiome in cows from three dairy farms was investigated to identify core bacteria contributing to various physiological roles during rumen fermentation in dry dairy cows. The results indicated that ruminal fluid in dry dairy cows from different regional farms had core rumen microbiota that could be clearly distinguished from that of cows of the other farms. Further identification of key microorganisms associated with each farm revealed that Prevotella, Methanobrevibacter, Pseudobutyrivibrio, Ruminococcus, Bacteroides, and Streptococcus were major contributors. Spearman’s correlation indicated that the abundance of genera such as Prevotella and Ruminococcus in dry dairy cows could indicate milk yield in the previous lactating period. Functional pathway analysis of the rumen bacterial communities demonstrated that amino acid metabolism and carbohydrate metabolism were the major pathways. Our findings provide knowledge of the composition and predicted functions of rumen microbiota in dry dairy cows from regional farms, which underscore the importance of the relationships among hosts, microbiota, diet composition, and milk production. View Full-Text
Keywords: dry period; rumen microbiota; physiological roles; Prevotella; Ruminococcus dry period; rumen microbiota; physiological roles; Prevotella; Ruminococcus
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MDPI and ACS Style

Chuang, S.-T.; Ho, S.-T.; Tu, P.-W.; Li, K.-Y.; Kuo, Y.-L.; Shiu, J.-S.; Wang, S.-Y.; Chen, M.-J. The Rumen Specific Bacteriome in Dry Dairy Cows and Its Possible Relationship with Phenotypes. Animals 2020, 10, 1791. https://doi.org/10.3390/ani10101791

AMA Style

Chuang S-T, Ho S-T, Tu P-W, Li K-Y, Kuo Y-L, Shiu J-S, Wang S-Y, Chen M-J. The Rumen Specific Bacteriome in Dry Dairy Cows and Its Possible Relationship with Phenotypes. Animals. 2020; 10(10):1791. https://doi.org/10.3390/ani10101791

Chicago/Turabian Style

Chuang, Shih-Te; Ho, Shang-Tse; Tu, Po-Wen; Li, Kuan-Yi; Kuo, Yu-Lun; Shiu, Jia-Shian; Wang, Sheng-Yao; Chen, Ming-Ju. 2020. "The Rumen Specific Bacteriome in Dry Dairy Cows and Its Possible Relationship with Phenotypes" Animals 10, no. 10: 1791. https://doi.org/10.3390/ani10101791

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