Chicken productivity sensitive to light and sound

Studies show, that just as in humans, major abrupt changes to the day/night cycle of the chickens, such as waking up the chickens at night with loud noises will lead to stressed and anxious chickens. Chickens like all vertebrates are governed by a circadian rhythm that is governed by the natural light/dark cycle of day and night. As such chickens mostly rest and are inactive at night especially when it is dark. Most of their feeding and activity is during the day light hours, even though they