Castration alters the ileum microbiota of Holstein bulls and promotes beef flavor compounds - Jinping Shi; Zemin Li; Li Jia; Yue Ma; Yongliang Huang; Pengjia He; Tao Ran; Wangjing Liu; Wangdong Zhang; Qiang Cheng; Zhao Zhang; Zhaomin Lei (BMC Genomics, 2024)