Thanks so much for the replies.
First of all, on the bones, I thought the opposite was true; that the raw bones would be more splintery. But I guess I was wrong.
Some folks would say never to feed chicken bones to dogs, period. But a vet told me long ago, that when chicken is cooked in a pressure cooker or crock pot, that the bones get soft, and is therefore okay to give to dogs. I've never had any problems. And I would never give her bones cooked from an oven microwave oven.
I have done a lot of research, but I'll continue doing so.
And I may try the raw bones the next chicken we buy, if everyone here agrees they are okay. But I'm cutting out a lot of the bones, period. 10% is enough.
As for the grains, I did read that dogs don't digest them well, but also read that rice and oatmeal were okay. hm.
Anyway, I'm still learning, but my dog seems very happy and I work hard to take excellent care of her. She is growing slowly, so that's good.
I didn't know that grapes were toxic. Luckily that's one I don't give her much of. I won't give her anymore.
I appreciate your knowlege on these matters.