Abstract

As both Abplanalp (1986) and Fairful1 and Gowe (1986) have pointed out, the concept of breed in modern poultry industry has been almost eliminated and the breeding stocks we concern no longer descend from purebred parents. Also strong selection directed at a few traits of economic importance changed the physical requirements for the breed. Instead of using the name of the breed, commercial breeders today use White Leghorn type or White Cornish type birds since late 1950's. This is a distinctive characteristic of poultry compared with other livestock.
 

Y. Yamada

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume X. Breeding programs for swine, poultry, and fish., , 239–241, 1986
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