Impact of oat grain supplementation on growth performance, rumen microbiota, and fatty acid profiles in Hu sheep
文献类型： 外文期刊
作者： Ren, Xiaoqi 1 ; Wang, Liwei 1 ; Yu, Chuanzong 1 ; An, Jianghong 1 ; Fu, Shaoyin 1 ; Sun, Hua 1 ; Zhao, Mengran 1 ; Te, Rigele 1 ; Bai, Xiaobo 1 ; Yuan, Jingda 1 ; Liu, Yongbin 2 ; He, Jiangfeng 1 ;
作者机构： 1.Inner Mongolia Acad Agr & Anim Husb Sci, Res Inst Biotechnol, Hohhot, Peoples R China
2.Inner Mongolia Minzu Univ, Coll Anim Sci & Technol, Tongliao, Peoples R China
3.Inner Mongolia Univ, Coll Life Sci, Hohhot, Peoples R China
4.Inner Mongolia Agr Univ, Coll Anim Sci, Hohhot, Peoples R China
关键词： oat grain; Hu sheep; growth performance; intestinal microbiota; SCFAs; FAs
期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：4.5； 五年影响因子：5.2 ）
ISSN：
年卷期： 2025 年 16 卷
页码：
收录情况： SCI
摘要： The intestinal microbiota plays a vital role in animal growth and development. In this study, we explored the impact of oat grain dietary supplementation on growth performance, intestinal microbiota, short-chain fatty acids (SCFAs), and fatty acids (FAs) in Hu sheep. Thirty-two Hu lambs were randomly assigned to a control group (RC) or an oat grain-supplemented group (RO). After 90 days on their respective diets, rumen digesta were collected from six randomly selected Hu lambs per group to assess microbial diversity, SCFAs, and FAs. The RO diet significantly enhanced growth in Hu sheep (p < 0.01) and increased alpha-diversity, as indicated by Chao1 and Shannon indices. Core phyla in both groups were Firmicutes and Bacteroidota, with predominant genera including Prevotella, Rikenellaceae_RC9_gut_group, and F082. Oat grain supplementation led to significant shifts in microbial composition, increasing the abundance of Acidobacteriota, Proteobacteria, Chloroflexi, Actinobacteriota, and Subgroup_2, while decreasing Bacteroidota and Oscillospiraceae (p < 0.05). The RO group also exhibited lower levels of isobutyric and citraconic acids but higher levels of azelaic acid (p < 0.05). These results indicate that oat grain supplementation enhances beneficial rumen microbes and optimizes FAs and SCFAs composition, thereby promoting weight gain in Hu sheep.
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