An Electrophoretic Study of Egg-White Proteins in Twenty-Three Breeds of the Domestic Fowl

Abstract
Fresh albumen samples from a total of 244 from 23 breeds of domestic fowl (Gallus gallus) were analyzed electrophoretically. These breeds include the wild-type red jungle fowl, as well as a wide variety of bantam, laying, and exhibition breeds which provide a large amount of morphological and physiological diversity. No variation in the egg-white proteins among these breeds could be detected that was greater than normal sampling and measuring errors inherent in the technique. It is concluded that the structure of the egg-white proteins is phylogenetically conservative.

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