Could really use some help in knowing what's best for my chickens. We have 6 chickens who are each a little over 22 weeks: Australorps, Buff Orpingtons, and Easter Eggers. None have layed eggs yet, but we've been told by some that we should go ahead and switch to layer feed and that will help them make the transition. But I have also read that the higher amounts of calcium can be toxic if they're not laying yet...any thoughts or experience in this department? Has anyone else had chickens this old that didn't lay and found that they were still healthy after switching to layer feed? We've invested so much into these gals and our son has become quite attached, so as a first time chicken owner, I'm nervous to do anything that could harm them. Thanks in advance for any help!!