Effects of photoperiod on gonadal development and neuropeptide Y and NPY1 receptor in Nile tilapia (Oreochromis niloticus) - Yujie Cao; Jun Xiao; Pengfei Gao; Yufang Chen; Zhanyang Tang; Liping Li; Zhongbao Guo; Ming Li; Zhuanling Lu; Ting Huang (Fish Physiology and Biochemistry, 2026)