Abstract
The time at which poultry reaches sexual maturity affects the economic profitability of the farm. The timing may vary under the influence of feeding, lighting and other conditions, the stability of which in individual farms is difficult to maintain at the same level. Tests of poultry for productive qualities and breeding indicators were carried out in 2021-2022 at the K.A. Zhdanov peasant (farming) economy, (Voronezh region, Ramonsky district, Novopodkletnoye village) on guinea fowl of the selection core line VBA-1 (Volga white autosex). Studies have shown that early selection of laying hens and breeding males before the start of flock reproduction increases the proportion of highly productive birds. The maximum number of fertilized eggs (90.42±4.29 - 92.71±3.07%) was obtained from early and mid-ripening laying hens that reached the age of puberty at 231-244 days. Early-ripening guinea fowl had a significant (P
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