My brother is going to hunt a deer for us. When it's processed, I told him that alot of the scraps that aren't normally kept, I want it for my dogs! So what I need to know is: what are the parts that I can't feed my dogs? I know that even the antlers can be kept to gnaw on right? What about organs and bones? Brain? Just tell me what parts we can't use for the dogs (aren't weight bearing bones bad?). Everything else I'm keeping for myself or my boys!