Autosexing -

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

While both allow for easy sorting, they are genetically distinct: autosexing

Breeds like the Rhodebar, Welbar, and Wybar follow similar naming and genetic conventions. Autosexing vs. Sex-Linked Hybrids In poultry, males have two sex chromosomes (ZZ)

Females typically have a dark, sharp "chipmunk" stripe; males are paler and often have a diffuse white spot on their heads. Sex-Linked Hybrids Females typically have a dark, sharp

Can be bred together to produce more autosexing chicks.

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:

refers to specific purebred poultry that hatch with distinct visual differences between males and females, allowing for immediate gender identification without invasive methods like vent sexing. Unlike "sex-links," which are first-generation hybrids, autosexing breeds "breed true," meaning their offspring will also possess these same identifiable traits. Core Mechanism: The Barring Gene