To maintain production in hens of laying age (16 weeks and older) during shorter day lengths, it is recommended to provide 14-16 hours of light per day. Approximately 14 hours of light per day is required to stimulate a hen to lay an egg. Anything below that will cause her reproductive cycle to shut down, triggering the hen to cease egg production until spring when the natural day length will increase to sufficient levels once again. Artificial light needs to be applied when the day length approaches 15 hours per day; which happens in September. Any supplemental light should be added during the morning hours, as sudden darkness can cause chickens to panic and pile up in a corner, which can consequently cause them to suffocate each other. By applying extra light in the morning rather than the evening, chickens will naturally go to roost with the setting of the sun (Zadina and Schielder, 2004).