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Comparative analysis of intestinal microbiota composition between free-ranged captive yak populations in Nimu County

文献类型: 外文期刊

作者: Zhu, Yanbin 1 ; Lu, Sijia 4 ; Cidan, Yangji 1 ; Wang, Hongzhuang 1 ; Li, Kun 4 ; Basang, Wangdui 1 ;

作者机构: 1.Tibet Acad Agr & Anim Husb Sci, Inst Anim Husb & Vet Med, Lhasa, Peoples R China

2.Linzhou Anim Husb & Vet Stn, Lhasa, Peoples R China

3.Gansu Agr Univ, Coll Vet Med, Lanzhou, Peoples R China

4.Nanjing Agr Univ, Coll Vet Med, Nanjing, Peoples R China

5.Nanjing Agr Univ, Coll Vet Med, MOE Joint Int Res Lab Anim Hlth & Food Safety, Nanjing, Peoples R China

关键词: captive yaks; free-range yaks; feeding style; gut microbiota; Nimu County; sequencing; Tibet autonomous region

期刊名称:FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY ( 影响因子:4.6; 五年影响因子:5.1 )

ISSN: 2235-2988

年卷期: 2024 年 14 卷

页码:

收录情况: SCI

摘要: The intestinal microbiota assumes a pivotal role in modulating host metabolism, immune responses, overall health, and additional physiological dimensions. The structural and functional characteristics of the intestinal microbiota may cause alterations within the host's body to a certain extent. The composition of the gut microbiota is associated with environmental factors, dietary habits, and other pertinent conditions. The investigation into the gut microbiota of yaks remained relatively underexplored. An examination of yak gut microbiota holds promise in elucidating the complex relationship between microbial communities and the adaptive responses of the host to its environment. In this study, yak were selected from two distinct environmental conditions: those raised in sheds (NS, n=6) and grazed in Nimu County (NF, n=6). Fecal samples were collected from the yaks and subsequently processed for analysis through 16S rDNA and ITS sequencing methodologies. The results revealed that different feeding styles result in significant differences in the Alpha diversity of fungi in the gut of yaks, while the gut microbiota of captive yaks was relatively conserved. In addition, significant differences appeared in the abundance of microorganisms in different taxa, phylum Verrucomicrobiota was significantly enriched in group NF while Firmicutes was higher in group NS. At the genus level, Akkermansia, Paenibacillus, Roseburia, Dorea, UCG_012, Anaerovorax and Marvinbryantia were enriched in group NF while Desemzia, Olsenella, Kocuria, Ornithinimicrobium and Parvibacter were higher in group NS (P<0.05 or P<0.01). There was a significant difference in the function of gut microbiota between the two groups. The observed variations are likely influenced by differences in feeding methods and environmental conditions both inside and outside the pen. The findings of this investigation offer prospective insights into enhancing the yak breeding and expansion of the yak industry.

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