I have two bags of organic layer crumbles to feed my four 11 week old pullets. I know flock raiser would be better at their age, but I couldn't get that organic locally. So I went with organic layer crumble. Now I'm re-thinking my choice. I've had it for a couple of weeks, so I'm reluctant to return the unopened bag. So, since I have it, will it hurt them? They free range about four hours a day as well.