Autosexing Access

In poultry, males have two sex chromosomes (ZZ) while females have one (ZW).

Several breeds have been developed—often by crossing a barred breed with a non-barred breed and then stabilizing the line—to achieve these results:

Because the barring gene is carried on the Z chromosome, a male chick receives two "doses" ( BBcap B cap B

The majority of autosexing breeds rely on the .

Breeds like the Rhodebar, Welbar, and Wybar follow similar naming and genetic conventions. Autosexing vs. Sex-Linked Hybrids