I have my 3 roosters and 2 ducks on the DuMOR Poultry Grower/Finisher 15% protein. Its a crumble. What do i feed them next? They are all pets. Should i get my ducks on gamebird feed or layer pellets since they will probably start laying soon? Will that be ok for my roosters to eat? Im new at this still and Tractor Supply isnt any help and they dont carry game bird feed so id have to have it special ordered at another feed store.