Poultry
Black Sex Link
F tier
Black Sex Link is a generic commercial hybrid brown-egg layer class in which black or dark pullets can be distinguished from lighter or differently marked cockerels at hatch. Hatchery parent stock varies, but selection targets high brown-egg production, early maturity, and efficient feed use rather than closed heritage breed standards. Culinary use of spent layers and males yields lean, mild chicken for boiling, stewing, soup, mince, and light roasting. As a commercial hybrid layer/sex-link type, Black Sex Link prioritises eggs; meat is secondary and not comparable to broiler hybrids or slow-grown table breeds.
Also known as: Black Sex Link, Black Sex Link, Black Sex Link, Black Sex Link, Black Sex Link
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Grading systems
Grades are placed along a shared scale so systems can be compared side by side.
History
Commercial application of sex-link colour genetics produced black pullet identification in hybrid layers.
Black sex-link hybrids entered hatchery catalogues as efficient small-flock brown layers.
International breeding companies refined black sex-link parent combinations for production traits.
Backyard and small commercial systems widely used Black Sex Link hybrids for table eggs.
Retail chick markets popularised generic Black Sex Link alongside branded Star and Comet hybrids.
Black Sex Link remained a standard commercial hybrid layer category in global hatchery trade.