1Growth rate (%) = BW at each time point/BW at d 0. Data presented as mean ± SEM (n = 12). HB-BT = hot-blade beak trimming; IR-BT = infrared beak treatment
1Growth rate (%) = BW at each time point/BW at d 0. Data presented as mean ± SEM (n = 12). HB-BT =hot-blade beak trimming; IR-BT = infrared beak treatment