Cottonseed protein concentrate as an effective substitute to fish meal in pike perch (Sander luciperca) feed: evidence from growth performance and intestinal responses of immune function and microflora - Fan, Ze; Zhao, Jie; Huang, Jiaming; Lu, Cuiyun; Wu, Di; Sun, Zhipeng; Li, Jinnan; Wang, Liansheng; Zheng, Xianhu (Frontiers in Immunology, 2025)