My lab, Billy J Bear just turned 10. He is not over weight. He...

My lab, Billy J Bear just turned 10. He is not over weight. He has bones often, but we get big ones, and he has that instead of his usual dinner. Butchers have taken to cutting big bones in half length-ways. I always get them cut in half the other way - making the marrow too easy for them to get can make them ill because it is so rich. He also loves apples and carrot - but not celery or parsley!