To the problem of formation of highly productive healthy herds of cows

For accelerated repair of herd and increase of number of highly productive cows in large farms for milk production one uses sexed seed at the first and the second insemination of first-born cows obtained from highly productive mothers. According to scientific data, the efficiency obtained from using this technique is 65-95 % of individuals of the desired sex. The highest results of the fruitfulness of insemination with a sexed seed in SEC PZ Almaty, IP Karimov and Kakpatas Kordai were obtained in the autumn-winter period and ranged from 58.1 to 65.2 %, with an insemination index of 1.58-1.72. When using the technology of artificial insemination of calves with a sexed seed, in comparison with a seed not divided by sex, the economic efficiency, taking into account the costs of insemination, amounted to 10040.2 thousand tenge. When using a sexed seed, an average of 92 % of calves were obtained from primates. Less insemination costs, the profit from calf production amounted to 76109.2 thousand tenge.