Changes of metabolic parameters, antioxidant capacity, and gut microbiota in response to substitution of ferrous sulfate with iron hydroxy methionine analog chelate in weaned piglets - Fu, Yuemeng; Zhou, Guohui; Liu, Yuhang; Yuan, Xuejun; Jiao, Ning; Lu, Wenbiao; Yang, Weiren (Frontiers in Cellular and Infection Microbiology, 2025)