Impact of oat grain supplementation on growth performance, rumen microbiota, and fatty acid profiles in Hu sheep - Ren, Xiaoqi; Wang, Liwei; Yu, Chuanzong; An, Jianghong; Fu, Shaoyin; Sun, Hua; Zhao, Mengran; Te, Rigele; Bai, Xiaobo; Yuan, Jingda; Liu, Yongbin; He, Jiangfeng (Frontiers in Microbiology, 2025)