THE RESULTS OF EMBRYO TRANSFER IN CATTLE IN NORTHEASTERN KAZAKHSTAN
Keywords:
embryo, cattle,blastocyst, morula, transplantation, hormones, ovaries, cow-donor, recipient.Abstract
The article identifies the influence of method of induction of polyovulation in cows-donors, providing prolongation of the action of follicle-stimulating hormone preparations on ovarian morphology and quality of embryos confirmed by physiology, minimally invasive, the economic feasibility of methods of induction ofpolyovulation using extenders in cows-donors, as well as methods of extraction, quality assessment and embryo transfer. The criteria of selection of donor cows and recipients taking into account their
physiological state, the state of the reproductive system, the functional activity of the ovaries in response to the action of hormones. Differences in the morphology and development rate of embryos obtained from donor cows of the Simmental breed were
revealed. The results obtained allow us to conclude that the use of embryo transplantation in dairy cattle in a short time will dramatically increase the number of highly productive herd, thereby realizing the full genetic potential.
