Breeding of cattle with using of marker genes

Currently, a promising direction in cattle breeding is breeding with using of marker genes, which allows us to identify animals with potentially necessary traits for breeding, in order to increase milk or meat productivity. Marker selection is rightfully considered one of the leading directions in breeding, allowing us to identify genes in the genome that are responsible for benefi cial properties for animals. Many authors have studied the possibility of using genome data that confi rm the undeniable advantages of marker selection over other types. For example, selection based on the external characteristics of animals is popular. However, selection using external characteristics does not provide a high guarantee of obtaining off spring with the necessary characteristics, while when using marker selection, this percentage increases significantly. The primary advantage that is paid attention to when choosing this type of selection is a significant reduction in the time for evaluating the off spring, which allows us to spend less time to achieve the desired result. The purpose of the work was to consider the advantages of using marker genes in cattle breeding and describe the method for carrying out this procedure. The main points related to marker selection are considered. Due to the existing research and compiled gene databases, it is possible to select animals with the most advantageous gene combinations, which will allow to increase the necessary production in the future. At the same time, it is impossible to conduct such research without the necessary equipment. The analyses carried out are quite expensive, but they quickly pay off if the selection work is carried out correctly. Therefore, it can be said that marker selection will become more and more popular in the future.