There are about 400 different breeds of purebred dogs in the world. A purebred dog is considered to be one whose genealogy can be traced for three generations within the same breed. National registries, such as the American Kennel Club (AKC) in the United States, the Canadian Kennel Club, the Kennel Club of England, and the Australian National Kennel Council, maintain pedigrees and stud books on every dog in every breed registered in their countries. |
British, Canadian, and American classifications are basically the same, although some of the terminology is different. For example, Sporting dogs in the United States are Gundogs in England. Utility dogs in England are Non-Sporting dogs in the United States and Canada. Not all countries recognize every breed.
The United States recognizes seven classifications, called groups (encompassing more than 130 breeds), whereas the English and Canadians have six groups (the American system divides the Working group into two groups: Working dogs and Herding dogs).