Hi, a few questions: I have all my chickens -three hens and two pullets- on quick-gro (I know it's called different things but it's the feed you give pullets until they are laying age.) The hens have stopped laying for the Winter so the feed store said I could put them all on one food that is not a laying feed. )I hope that was good advice for the hens.) Anyway, the pullets are about 14 weeks now. When can I switch everyone back to laying feed?