My wife has a co-worker who has chickens, he bought them as chicks at tractor supply, they are mixed heavy breeds. He had about 20 pullets that never started to lay well. He has had them two years now and has never gotten more than one or two eggs a day from them. I told him to ad lights on timers to the coop and feed layer mash, plenty of fresh water. Two months latter he is still getting only a couple of eggs a day. Any advice that I have forgotten?