| Get on Yahoo and search for "prong collar". You'll find several links that reference a study in Germany where they tested 50 dogs with a prong collar and 50 dogs with a choke chain. When the dogs died, almost all the dogs that were trained with a choke collar suffered some kind of neck or thyroid injury, while almost all the dogs trained with a prong collar suffered no injury.
It makes perfect sense to me. You have to exert a lot more force with a choke collar to get the dog's attention, especially if it's a big, sturdy dog. |