hi, I understand chickens need to gain some extra weight to help build fat stores in the body which insulates from cold. I see people like corn as it is calorie dense and chickens like it. As I went to buy corn for my chickens I realized I didn't know which form was the most digestible. Whole, cracked, flaked, steamed, from a can? Looked around web got a lot of different answers. If it is not digestible it will pass thru and no caloric gains will be had. I also read this a lot: "giving your hens a small amount of corn before bedtime helps them to keep warm during the night." I don't understand any of the science behind this except that more calories means increased fat levels which usually means a better insulated bird. If you feed the chickens corn before they go to sleep won't the blood in the body go toward the stomach to help digestion? Does this pull the circulating blood away from other body parts? It seemed like some people think that digesting is like making heat inside the body... I still don't know which form of corn to supplement with. Ideas? Thoughts? Thanx.