Breeding of chickens of the ROSS-308 cross at different air humidity in the incubator

Artificial incubation of poultry eggs makes it possible to organize year-round production of poultry products, increase productivity and reduce the number of the parent flock of poultry. In studies on incubation eggs of the parent flock of hens of the Ross-308 cross that meet the existing standards, it was found that with different air humidity in the incubator, the efficiency indicators of biotechnology change embryo development, chick hatching and egg hatchability, incubation waste and the intensity of the withdrawal of conditioned young. The optimal humidity in the incubator was in the range of 52–54 %. In this mode, the development of embryos of the first category was at the level of 62.5 %, the hatch of young animals and the hatchability of eggs amounted to 88.5 and 89.4 %, respectively, incubation waste was 4.3–7.3 % lower compared with higher or lower humidity with high intensity of hatchling and profitability of the incubation process. Deviation from the established optimum of air humidity in the incubator is accompanied by deterioration in all studied indicators of broiler reproduction.