Studies on Inheritance in Poultry: The Factor for Black Pigmentation in the White Leghorn Breed (Classic Reprint) - Couverture souple

Hadley, Philip B

Couverture souple

ISBN 10 : 1397175613 ISBN 13 : 9781397175618

Editeur : Forgotten Books, 2018

Synopsis

Excerpt from Studies on Inheritance in Poultry: The Factor for Black Pigmentation in the White Leghorn Breed

Before presenting the experimental results, a word should be said regarding the zygotic constitution of the White Leghorn, since this point has an important bearing upon the interpretation of any results Obtained. This breed is characterized by the so-called dominant white, as contrasted with the recessive white present in the majority of other white breeds, including the White Plymouth Rock, White Minorca, and White Silky, for example. In crosses between the White Leghorn and such black fowl as Black Hamburg, Black Minorca, Black Spanish and Black Java, the F1 birds are invariably White, frequently Showing splashes or flecks of black, and less Often a barred or partly barred feather. In F 2 the typical Mendelian ratio appears, 3 white 1 dark. The dark birds comprise both black and barred individuals in the ratio 1 3, as stated in an earlier paper.

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Détails de l'édition

• Éditeur: Forgotten Books
• Date d'édition: 2018
• Langue: anglais
• ISBN 10: 1397175613
• ISBN 13: 9781397175618
• Reliure: Broché
• Nombre de pages: 26
• Coordonnées du fabricant: non disponible
• Personne responsable: non disponible