High-fertility sows reshape gut microbiota: the rise of serotonin-related bacteria and its impact on sustaining reproductive performance. - Chen, Yanli; Wang, Yan; Shaoyong, Weike; He, Yanmin; Liu, Yalin; Wei, Siyu; Gan, Yujie; Sun, Lu; Wang, Youming; Zong, Xin; Xiang, Yun; Wang, Yizhen; et al. (Journal of Animal Science & Biotechnology, 2025)