Abstract. The research aims to analyze the efficiency of the technology for accelerated determination of preg-nancy in dairy cattle and diagnosis of gynecological diseases, as well as the method of artificial insemination of cows with sexed semen. According to the research results, it was revealed that in all farms, replacement heifers are raised in accordance with the regulatory requirements for the rearing of young stock of dairy breeds. It was found that out of 2061 cows with disordered reproductive functions – 212 animals, or 9.8 % of the total livestock, including inflammation of the uterine mucosa was found in 48 animals, or 2.3 %, follicular cyst – in 45 animals, or 2.2 %, hypo-ovaria – in 110 animals, or in 5.3 %. Among 212 animals with reproductive disorders, 175 heads or 82.5 %, were cured, with inflammation of the uterine mucosa – 84.2 %, with a follicular cyst – 88.9 %, with hypo-ovarian – 79.1 %. The treatment was carried out according to the schemes developed by the authors. Fertility from the first insemination with the use of fertagyl in the farm Aidarbaev E was – 83.3 %, in the group treated with the drug Surfagon – 100 %, in AIC Adal JSC – 75 % and 100 %, respectively, in Agrofirm Dinara-Ranch LLP – 85.7 % and 100 % respectively. The conducted studies have shown that the efficiency of using sexed semen is quite high and the yield of heifers is: 88.9... 92.6 % in AIC Adal JSC, in the farm Aidarbaev E – 90.7... 92.3 %, in Agrofirm Dinara-Ranch LLP – 90.7... 94.4 %.