So you have made the decision to get a dog. Perhaps you had a bad experience once before with a dog who you thought was cute or friendly, but then when you got him home he turned out to be a holy terror, and the whole thing turned into a nightmare. Even if you have never had such a bad experience, the fact remains that choosing a pet is a life-changing decision, and it is one that takes a lot of thought and research.
When one thinks of the bulldog, the image that first comes to mind is probably that of the English Bulldog, with its squat build, round head and distinctive “face that only a mother could love.” But there is another kind of beloved breed of bulldog: bigger and more athletic, and ruggedly handsome where the English Bulldog is charmingly ugly. This is the American Bulldog, a breed that almost literally came back from the dead to become widely popular as both a working dog and a family pet.
The best tool for breeders in the fight against canine hip dysplasia (CHD), to come along in years, is the SV's HD Zuchtwert, or Breed value assessment number (HD ZW). The HD ZW number is an estimation of the probability that a dog will produce progeny with CHD.