Modern biotechnological methods in the reproduction of dairy cattle

Abstract

The problem of increasing the highly productive number of dairy cows is becoming a priority in the cattle breeding of the Republic of Kazakhstan. The decrease in conception rate of cattle is associated with frequently detected in animals functional disorders of the reproductive system, including violations of the functional activity of the ovaries, manifested in the form of their hypofunction or cysts and inflammation of the uterine mucosa. The research has been carried out within the framework of budget projects of the Ministry of agriculture of the Republic of Kazakhstan: “Transfer and adaptation of technologies for automation of technological processes of livestock production on the basis of model farms in dairy farming from 100 cows from different regions of the Republic of Kazakhstan” and “Improving the efficiency of selection methods in cattle breeding” in the peasantry farm “Aidarbayev E. S.” Enbekshikazakh district in the Almaty region in the Republic of Kazakhstan. It has been found according to the results of the research that the first signs of pregnancy ultrasound scanner detects at least 26 days, but the forecast is more accurate at the period of at least 33 days (according to 5 indicators). During the studied period in the peasantry farm “Aidarbayev” from 483 heads maternal livestock 359 heads of calves have been obtained or 74,3 %. Out of the total number of calves 251 alive calves have been received or 69,9 %, and 24,5 % of stillbirths. Of the calved 27 heads of cows 18 heifers or 66,7 % have been received, which is quite effective from a practical point of view. The sexed semen, which has being obtained in recent years, the percentage of conception rate from the first insemination has increased. Further research will focus on the causes of fetal mortality of calves and increased of conception rate when using sexed semen.