In my experience, you can feed the harder bones (femurs, narrow bones, etc) once or twice a week. But you can add softer bones like chicken backs more often. I will warn you though, please supervise your dog with the harder bones, one of my larger dogs who is too enthusiastic about bones broke a canine tooth on one. She is only allowed softer bones now. But the rest of my dogs do great with raw bones.
Two of my four dogs got sick when I introduced them to raw bones for the first time (I had never fed them raw before that) and the others adjusted just fine. I would pick up a few chicken/turkey necks and try giving your dog one of those first, or chop it up and give the dog a few pieces, they are small and that way the dog can get used to the raw a little bit at a time. Or give a raw bone for just a few minutes at a time. Hopefully this helps.
