A
designer crossbreed or
designer breed is a
crossbred animal that has
purebred parents, usually registered with a
breed registry, but from two different
breeds. These animals are the result of a deliberate decision to create a specific crossbred animal. Less often, the animal may have more than two pure breeds in its ancestry, but unlike a mutt or a
mongrel, its entire
pedigree is known to descend from specific known animals. While the term is best-known when applied to certain
dog crossbreeds, other animals such as cattle, horses, birds and cats may also be bred in this fashion. Some crossbred breeders start a freestanding breed registry to record designer crossbreds, other crossbreds may be included in an "appendix" to an existing purebred registry. either form of registration may be the first step in recording and tracking
pedigrees in order to develop a new breed.