I don't know if I do or not. I have these chicks that are 9 weeks now. I bought a sack of layer crumble for the big girls to replace the pellets I've been using. The big girls ate it like they hadn't eaten in months. They threw the pellets out on the ground to get at the crumbles. Now the chicks are into it big time. I've read where layer for chicks will kill um. Well, if that's true mine will be dead in no time. At 9 week these chicks are as big as the sexlinks I have full grown. Is this feed gonna kill the 9 week olds? I still feed the starter/grower and they eat it but the eat the other stuff too.