My 62 year old uncle who has always raised chickens said he keeps his on 15% grower/finisher forever and they lay nice eggs. I feed my chickens the same food he feeds his, DuMor brand. So, if I were to switch my 3 girls to 16% layer, what is my 1 boy supposed to eat - the same thing? Anyone else keep their chickens on grower/finisher forever? Don't laugh, I'm still new to the whole chicken thing.