I've got 6 full sized chickens and 4 banties, plus 2 pheasants. I give them layer pellets and a 5 grain treat mixture. They have free access to the pellets and I give them a small bucket of treat a day. They also get table scraps. Id say I go through about 100# a month. There are currently 5 laying almost every day and they are pretty plump birds. They don't seem to be lacking anything in food.