兰州大学机构库 >生命科学学院
Effects of Dietary Energy Levels on Rumen Fermentation, Microbial Diversity, and Feed Efficiency of Yaks (Bos grunniens)
Ahmad, Anum Ali1,2,3; Yang, Chao1,2,4; Zhang, Jianbo1,2; Kalwar, Qudratullah1,2; Liang, Zeyi1,2; Li, Chen1,2; Du, Mei1,2; Yan, Ping1,2; Long, Ruijun3; Han, Jianlin5,6; Ding, Xuezhi1,2
2020-05-15
Source PublicationFrontiers in Microbiology   Impact Factor & Quartile Of Published Year  The Latest Impact Factor & Quartile
ISSN1664-302X
Volume11
page numbers12
AbstractThe microbial community of the yak (Bos grunniens) rumen plays an important role in surviving the harsh Tibetan environment where seasonal dynamic changes in pasture cause nutrient supply imbalances, resulting in weight loss in yaks during the cold season. A better understanding of rumen microbiota under different feeding regimes is critical for exploiting the microbiota to enhance feed efficiency and growth performance. This study explored the impact of different dietary energy levels on feed efficiency, rumen fermentation, bacterial community, and abundance of volatile fatty acid (VFA) transporter transcripts in the rumen epithelium of yaks. Fifteen healthy castrated male yaks were divided into three groups and fed with low (YL), medium (YM), and high energy (YH) levels diet having different NEg of 5.5, 6.2, and 6.9 MJ/kg, respectively. The increase in feed efficiency was recorded with an increase in dietary energy levels. The increase in dietary energy levels decreased the pH and increased the concentrations of acetate, propionate, butyrate, and valerate in yak rumens. The increase in the mRNA abundance of VFA transporter genes (MCT1,DRA,PAT1, andAE2) in the rumen epithelium of yaks was recorded as dietary energy level increased. High relative abundances of Firmicutes and Bacteroidetes were recorded with the increase in dietary energy levels. Significant population shifts at the genus level were recorded among the three treatments. This study provides new insights into the dietary energy-derived variations in rumen microbial community.
Keywordyak dietary energy rumen microbiota volatile fatty acid feed efficiency growth performance
PublisherFRONTIERS MEDIA SA
DOI10.3389/fmicb.2020.00625
Indexed BySCIE
Language英语
Funding Projectinternational cooperation and exchange program of the National Natural Science Foundation of China[31461143020] ; international cooperation projects in Gansu province[1504WKCA053]
WOS Research AreaMicrobiology
WOS SubjectMicrobiology
WOS IDWOS:000556723100001
PublisherFRONTIERS MEDIA SA
Original Document TypeArticle
PMID 32670204
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/441323
Collection生命科学学院
Corresponding AuthorDing, Xuezhi
Affiliation
1.Chinese Acad Agr Sci, Lanzhou Inst Husb & Pharmaceut Sci, Key Lab Vet Pharmaceut Dev, Minist Agr & Rural Affairs, Lanzhou, Peoples R China
2.Chinese Acad Agr Sci, Lanzhou Inst Husb & Pharmaceut Sci, Key Lab Yak Breeding Engn, Lanzhou, Peoples R China
3.Lanzhou Univ, Sch Life Sci, State Key Lab Grassland Agroecosyst, Lanzhou, Peoples R China
4.Chinese Acad Sci, Hunan Prov Engn Res Ctr Hlth Livestock & Poultry, Inst Subtrop Agr,Minist Agr,South Cent Expt Stn A, CAS Key Lab Agroecol Proc Subtrop Reg,Natl Engn L, Changsha, Hunan, Peoples R China
5.Chinese Acad Agr Sci, Inst Anim Sci, CAAS ILRI Joint Lab Livestock & Forage Genet Reso, Beijing, Peoples R China
6.Int Livestock Res Inst, Livestock Genet Program, Nairobi, Kenya
First Author AffilicationSchool of Life Sciences
Recommended Citation
GB/T 7714
Ahmad, Anum Ali,Yang, Chao,Zhang, Jianbo,et al. Effects of Dietary Energy Levels on Rumen Fermentation, Microbial Diversity, and Feed Efficiency of Yaks (Bos grunniens)[J]. Frontiers in Microbiology,2020,11.
APA Ahmad, Anum Ali.,Yang, Chao.,Zhang, Jianbo.,Kalwar, Qudratullah.,Liang, Zeyi.,...&Ding, Xuezhi.(2020).Effects of Dietary Energy Levels on Rumen Fermentation, Microbial Diversity, and Feed Efficiency of Yaks (Bos grunniens).Frontiers in Microbiology,11.
MLA Ahmad, Anum Ali,et al."Effects of Dietary Energy Levels on Rumen Fermentation, Microbial Diversity, and Feed Efficiency of Yaks (Bos grunniens)".Frontiers in Microbiology 11(2020).
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