
Dog breeding is the vocation of mating carefully selected specimens of the same breed to reproduce specific, consistently replicable qualities and characteristics.
In the animal breeding, to breed true means that specimens of an animal breed will breed true-to-type when mated like-to like; that is, that the progeny of any two individuals in the same breed will show consistent, replicable and predictable characteristics. A puppy from two purebred dogs of the same breed, for example, will exhibit the traits of its parents, and not the traits of all breeds in the subject breed's ancestry.