The present study was developed based on data from eggs incubation from three lines of turkeys: Layer Light turkey - LL, Meat Heavy turkey -MH and North Caucasian Bronze Turkey - NCB at 36 weeks of age. The degree of influence of the incubation traits was determined: number of set eggs, number of fertilized eggs, number of dead embryos 1st review and number of dead embryos 2nd review on the number of hatched turkeys by applying a correlation analysis. The obtained relations were presented by mathematical models compiled after using a regression analysis. The significant dependencies between these signs were demonstrated by mathematical models compiled using regression analysis. Mathematical models were built to present these relations in analytical form.