Chickens go crazy for mixed corns. However, corn or corn mixtures do not provide a complete diet. If you feed too much corn, your chickens will get too fat and their condition can diminish as well as decline in the number of eggs.
Give them mixed corn as a treat, and no more than 15% of their total quantity of feed. This also applies to waterfowl and you get the best results if you supplement their main pelleted feed with corn.