I can't confirmer that it's really bad for your rabbit, but I don't think it's positive. Think of this: dog nourriture is simply made for dogs, and not rabbits. Dog nourriture contains meat (think chicken, beef, pork etc), and rabbits aren't supposed to eat meat, they're herbivores. Please don't let your bunny do this anymore. When he's getting his exercise, just put the dog bowl up on the counter and make sure there's no little peices on the floor either. toi don't want your bunny getting sick.