We feed our dogs raw turkey, chicken, fish, but when it comes to beef, what cut is best. Like I told my wife to pick up some beef for our dogs and she brings home $7.50, T-Bone steak. Well, not that my dogs are not worth it, but this steak has alot of what I call marbling, like thin fat running thourgh out making for a juicy steak for humans but probably not good for dogs. But they really enjoyed it! Any suggestion for beginners?