Hi FF, Yes I feed bone as well, rabbit ribs and also crushed neck, spine of rabbit. I introduced kitten raw when we got him, chicken didn't agree with his tummy back then, touch and go with beed so I tried rabbit and this seems to have worked for him. Asked my vet about taurine and add this in. Genetrix do 'Lacto B' for cats and said, it can be used long term as an aid for digestion whether feeding raw or processed. Kitten occasionally gets the runs, and I tend to use pro-kolin. I'm hoping as he gets older like the other one, his tummy will settle down and I can try him on other meats again. He does have offal occasionally, again have to watch his tummy. Pet plus seems to be a good supplement to add, I guess it's up to the individual feeder and depending on the cat/kitten as well as to what works for s/he.