увеличивать количество животных линии Монтвик Чифтэйн, а также использовать производителей данной линии для совершенствования черно-пестрого скота. <...> Intensity of development and the formation of the reproductive functions of holstein heifers and black pied selling. <...> SUMMARY Purpose - to increase the productive qualities of Holstein and black-and-white breed of cattle in the conditions of industrial technology in milk production due to its genetic improvement. <...> Kuibyshev "Kinel district of Samara region was formed by 3 groups of animals to 10 animals each having a different breed and belonging to the line. <...> Since the duration of labor, separation of the placenta and uterine involution was longer in the control group compared to the experimental animals that need to be considered during the selection and breeding work. reproductive function in animals studied groups were also significant differences. as the first manifestation of the sexual cycle in the treated group 2 was 5.8 days less than the control group to 3.6 days less than the cows of the experimental group-1. <...> Oplodovtoryaemost animal experimental groups was 100% and 90% of control. <...> The interval between the sexual cycle of the control group was 3.0; 2.3 days, respectively, greater than that in animals of experimental group 1 and group 2 experienced. <...> Баймишев, Х.Б. Репродуктивные способности нетелей голштинской породы // Нижневолжские известия Волгоградского ГАУ. <...> Баймишев, Х.Б. Биотехнологические приемы повышения репродуктивных качеств коров / Х.Б. Баймишев, В.В. Альтергот, А.А. Перфилов // Достижения науки агропромышленному комплексу : сб. науч. тр. <...> Гридина, С.Л. Воспроизводительная способность черно-пестрых коров Уральского типа // Зоотехния. <...> Жук, Ю.В <...>