The effectiveness of various methods of disinfection of the surface of hatching eggs

Breeding young animals in incubators allows you to get a large number of healthy chicks at any time of the year. Infection of hatching eggs with microorganisms begins immediately after the laying of the egg. Therefore, egg incubation is a necessary and vital process in the reproduction of a flock of poultry. In the process of incubation, not only favorable conditions are created for the development of embryos, but also for enhanced reproduction and accumulation of opportunistic and pathogenic microflora. The accumulation of microbial potential during incubation leads to an increase in embryonic mortality, a decrease in the hatchability of eggs and the hatching of chicks, as well as infection of chickens at the hatch, which always ends with their death on the first day of life. A necessary measure that can significantly reduce the microbial background is the treatment of incubation eggs with disinfectants. In this regard, the search for effective and environmentally friendly drugs is very relevant. The article presents the results of comparative tests of disinfectants "BB-1" and "Megadez" for pre-incubation treatment of chicken eggs and their effect on embryonic and postnatal ontogenesis of chickens. It was found that disinfection of chicken eggs with aerosols of these drugs does not have a negative effect on the indicators of biological control of incubation. In comparison with the traditional treatment of eggs with formaldehyde vapors (control), their hatchability increases by 3.7-5.2%, the percentage of chick hatching - by 2.5-3.9%. Chickens of the experimental groups at the age of 7 days were ahead of their peers from the control group in terms of average live weight by 5.5 and 4.3%, average daily growth by 6.8 and 5.4%, respectively.