Plumage color is a trait for separation by sex in guinea fowls

The study was conducted at Genofond LLC, Moscow region, on the offspring of guinea fowl with cream and silver colored plumage.The purpose of this work was to find methods for increasing the accuracy of sexing guinea fowls by sex at an early age, based on the manifestation of the genes of markers linked to the sex of the bird. Assessment of reproductive and productive indicators of autosex guinea fowl with cream and silver colored plumage. The results of selection and selection of guinea fowls according to the degree of plumage pigmentation ensured an increase in reproductive, productive indicators and accuracy of sexing offspring. Over the generation of selection, the yield of guinea fowl from laying hens with cream-colored plumage increased by 3.6 heads (4.5%), for silver guinea fowls by 2.1 heads (2.7%), live weight at slaughter age in guinea fowls of the experimental groups per generation changed slightly. At the same time, the advantage of cream over silver guinea fowl was 6.8%, respectively. At the same time, the offspring of silver guinea fowls were superior to their peers with cream-colored plumage in sexing accuracy at one day of age by 1.4%, at 12 weeks by 1.0%, and at 20 weeks by 0.3%, respectively.