I do the same thing as aart suggests. It's just simpler than using several different feeds. In my area they don't have "all flock" or "flock raiser" named feed but it's the same as "Turkey/gambird". Protein content changes for raiser/grower/finishers. I used grower, oyster shells tossed to layers two or three times a week.
Only thing I do different is once the chicks are grown to 12 weeks I switch everyone over to pellets as I have less waste using that.
Only thing I do different is once the chicks are grown to 12 weeks I switch everyone over to pellets as I have less waste using that.