This is probably a dumb question but, I really want to be sure. I have a flock that is all hens. I am planning on introducing two roosters into the group. Can they eat the same feed as the hens? I remember reading somewhere that the calcium in the feed for hens can hurt the kidneys of poultry that aren't laying. I think it was referring to growing pullets but since my roosters will never lay should this be a concern? Should I use regular feed and have calcium as free choice or is it okay to feed layer rations to all adult birds regardless of sex?