Vlassenko V. Cow's anaphrodisia and reparation methods of reproduсtion

The thesis is dedicated to the study of anaphrodisia spread in dairy cows with different level of production and technological maintenance, feeding, the dynamics during the year and application of ultrasonic method of gynecology disease differential diagnostics and effective methods of heat stimulation and synchronization.The research shows rise of anaphrodisia dependance on photoperiod, and spread of individual gynecologic diseases, depending on maintenance and feeding value.The method of ultrasonic ovary and uterus diagnostics gives objective and exact differentiation of diseases by monitoring echostructure, pathologic objects.Fon the first time made and checked hormonal heat stimulation and synchronization, which based on consistent correction of the follicle - luteogenesis, ovulation, fixing time for insemination and prevention of embryo-death.