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.
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.
A well trained SAR dog is a sight to behold. The dog can evenly maneuver the most difficult of terrain with the grace of a mountain goat all the while looking for a trapped or hidden human being. This type of work is often done on the fly, at the drop of the hat, with little advanced warning. It requires a talented dog and a special handler willing to invest the time and effort.