A total of 3600 eggs obtained from ATAK-S brown parent stock were incubated at control (37.5 °C, CONT-Inc), cyclic
low (36.5 °C/6 h/d from 10 to 18 d of incubation, LOW-Inc) or high (38.5 °C/6 h/d from 10–18 d of incubation,
HIGH-Inc) incubation temperatures.