Under normal circumstances, the white feather broiler is given full light in the early stage of brooding, and then the light is reduced. The purpose is to give the chickens enough rest time, and then let the feed enter the body and fully absorb the growth weight gain effect. If the chicken broiler cages is kept in full light for 24 hours, the chickens will not be able to rest. Although the feed consumption is increased, the feed is not fully absorbed in the body because the chicken's intestines are relatively short and the proper activity of the chickens. It is excreted. The result is an increase in feed consumption that has not been converted into nutrients in the chicken body. The consequence is that the meat is relatively high when it is released.