A rearing method for growing cattle areprovided that can enhance the appetite for feed, withoutgreatly disturbing the circadian rhythm. The rearingmethod for growing cattle are a method based on a circadiancycle under a long-day management that manages the growingcattle in a lighting environment in which a light periodis longer than a dark period. The light period includesa first period during which the growing cattle areirradiated with light including blue light, and a secondperiod following the first period, during which thegrowing cattle are irradiated with light not includingblue light, but including amber light.
