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Purebred are those animals that have been bred-up to purebred status as a result of using full blood animals to cross with an animal of another breed. Artificial breeding via artificial insemination or embryo transfer is often used in sheep and cattle breeding to quickly expand, or improve purebred herds.
The inbreeding guarantees a consistent and uniform animal model for experimental purposes and enables genetic studies in congenic and knock-out animals. In order to achieve a mouse strain that is considered inbred, a minimum of 20 sequential generations of sibling matings must occur.
Such animals can be recorded with a breed registry, the organisation that maintains pedigrees and/or stud books. The observable phenomenon of hybrid vigor stands in contrast to the notion of breed purity. For laboratory purposes, organisms such as mice have been inbred to 100% pure lines, as offered for sale by the Jackson laboratory. But this ...
Purebred breeding aims to establish and maintain stable traits, that animals will pass to the next generation. By "breeding the best to the best," employing a certain degree of inbreeding , considerable culling, and selection for "superior" qualities, one could develop a bloodline superior in certain respects to the original base stock.
Humans have maintained populations of useful animals around their places of habitat since pre-historic times. [4] Over these millennia, domesticated dogs have developed into distinct types, or groups, such as livestock guardian dogs, hunting dogs, and sighthounds. To maintain these distinctions, humans have intentionally mated dogs with certain ...
A dog is said to be purebred if their parents were purebred and if the dog meets the standards of the breed. The American Kennel Club allows mixed-breed dogs to be shown but under the condition the animals have been spayed or neutered, are not a wolf hybrid, and not eligible for the AKC Foundation Stock Service Program or an AKC Purebred ...
Purebred and registered animals [ edit ] If the breeding is for a purebred animal that will be used for exhibition or future breeding ( pets or livestock ), the animal must be registered and conform to the criteria laid out for that breed in a breed standard kept by a central authority, such as a kennel club for dogs.
The offspring produced as a result of breeding animals of one breed with other animals of another breed are known as crossbreeds or mixed breeds. Crosses between animal or plant variants above the level of breed/cultivar (i.e. between species, subspecies, botanical variety, even different genera) are referred to as hybrids. [6]