Large Split Elk Antler Dog ChewHow to Choose Which Antler Your Dog Needs? Whole Antler: For dogs described the following: aggressive chewer, tough chewer, heavy chewer, likes to chew than a whole elk antler is for you! Dogs that commonly get whole antlers: German Shepherds, Retrievers, Mastiffs, Boxers, Bully breeds, and more! It is more challenging for them to get to the marrow because it's only exposed on the ends of the antler. Split Antler: For dogs described as average chewer,