We have 2 cochins that are 10 weeks old and an EE that's 9 weeks old. We also have 5 leghorns that are 21-22 weeks, they are laying. The big girls treat the little ones well, they free range at the same time and there are no scuffles. The young ones have the run and sleep in a dog kennel while to older ones have the coop. We will finish off the starter and we have some finisher left, the older ones are one layer feed. Since the older ones need their nutrients for laying but the little ones can't eat layer feed, what can I feed them?