In determining the effect of external and internal factors on the quality of hatching eggs in poultry, internal factors include egg infections, physiological condition, breed, system and productivity of birds, epizootiological status of the group on infectious diseases, poultry density, feeding, microclimate, lighting regime, technological equipment In determining the effect of external and internal factors on the quality of hatching eggs in poultry, internal factors include egg infections, physiological condition, breed, system and productivity of birds, epizootiological status of the group on infectious diseases, poultry density, feeding, microclimate, lighting regime, technological equipment