气候变化领域集成服务门户(CCPortal): Effects of dietary N-carbamylglutamate on rumen fermentation parameters, and bacterial community diversity of Holstein dairy cows in Tibet

CCPortal

DOI	10.3389/fmicb.2023.1101620
	Effects of dietary N-carbamylglutamate on rumen fermentation parameters, and bacterial community diversity of Holstein dairy cows in Tibet
	Zhu, Jinjia; Wu, Yicheng; Jiang, Aoyu; Li, Bin; Ran, Tao; Zhou, Chuanshe; Xiao, Dingfu; Tan, Zhiliang
发表日期	2023
EISSN	1664-302X
卷号	14
英文摘要	IntroductionThe Tibetan Plateau is characterized by low temperature and hypoxia. N-carbamylglutamic acid (NCG) can increase blood oxygen saturation, and have the potential to be used to prevent the high-altitude hypoxia stress state of cows. However, its beneficial effect on the rumen microbiota of Holstein dairy cows remains unclear. MethodsHence, the experiments 12 multiparous (parity ranged from 2 to 7) Holstein dairy cows (413.0 +/- 42 kg) were randomly assigned to 2 treatments with 6 replicates in each treatment: basal diet (CON, control group) and basal diet plus 20 g/d/cow of NCG (NCG, experiment group), respectively. To study the effects of dietary NCG supplementation on rumen microbiota of Holstein dairy cows in Tibet. The experiment lasted for 45 days, with 15 days of pre-feeding and 30 days of formal trail period. ResultsThe results showed that ruminal NH3-N concentration in NCG group was lower (p < 0.05) than that in the CON group, while molar proportion of acetic acid and total volatile fatty acid (VFA) concentration were increased (p < 0.05) with the addition of NCG. Microbial diversity increased (p < 0.05) in NCG group, with Bacteroidetes, Firmicutes, and Patescibacteria as the most abundant phyla. The KEGG pathway analysis showed that the potential function of ruminal bacteria was mainly enriched in metabolism (carbohydrates, amino acids, lipids, energy, and nucleotides) and genetic information processing (replication, repair, and translation). ConclusionIn conclusion, NCG can improve rumen nitrogen utilization, total VFA and acetic acid production, and increase rumen microbial diversity, all of which could make the introduced Holstein dairy cows to better adapt to the harsh environment in Tibet and improve their production performance.
关键词	N-carbamylglutamate rumen bacteria rumen fermentation Tibet Holstein dairy cow
英文关键词	GUT MICROBIOTA; L-ARGININE; SUPPLEMENTATION; CARBAMOYLGLUTAMATE; EVOLUTION; ALTITUDE; REVEALS; DEPTH; FIBER; SHEEP
WOS研究方向	Microbiology
WOS记录号	WOS:000991186400001
来源期刊	FRONTIERS IN MICROBIOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282692
作者单位	Chinese Academy of Sciences; Institute of Subtropical Agriculture, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Lanzhou University; Hunan Agricultural University
推荐引用方式 GB/T 7714	Zhu, Jinjia,Wu, Yicheng,Jiang, Aoyu,et al. Effects of dietary N-carbamylglutamate on rumen fermentation parameters, and bacterial community diversity of Holstein dairy cows in Tibet[J],2023,14.
APA	Zhu, Jinjia.,Wu, Yicheng.,Jiang, Aoyu.,Li, Bin.,Ran, Tao.,...&Tan, Zhiliang.(2023).Effects of dietary N-carbamylglutamate on rumen fermentation parameters, and bacterial community diversity of Holstein dairy cows in Tibet.FRONTIERS IN MICROBIOLOGY,14.
MLA	Zhu, Jinjia,et al."Effects of dietary N-carbamylglutamate on rumen fermentation parameters, and bacterial community diversity of Holstein dairy cows in Tibet".FRONTIERS IN MICROBIOLOGY 14(2023).