Assertion: breed's trait | /r/HasSubevent | genetic diseases
Facets:
Source sentences:
text: to breed animals with heterosis, commonly known as "hybrid vigor", to create animals with more predictable characteristics than mixed breed or mongrel breeding, to avoid certain undesirable recessive traits that lead to genetic diseases that plague many purebred animals, to develop an animal that combines what are viewed as the best traits of two or more breeds, as the preliminary steps toward developing a new animal breed.