Use of analogue of opioid peptide to improve the effi ciency of cow immediation

Anzorov Vakha Askhadovich, Moryakina Svetlana Vasilyevna

the paper presents the results of tests of the preparation No. 41 on the heels of a black-and-white breed. In the first experiment, we studied the effect of this drug on the level of luteinizing hormone in blood serum. It was found that injection of heifers with preparation No. 41 causes an increase in the concentration of the hormone in the blood. Next, we carried out a series of experiments in which the effect of the drug on the insemination performance of both newly inseminated as well as repeatedly walking heifers was revealed. The results indicate that treatment of heifers with preparation No. 41 before insemination causes a significant increase in the number of pregnant animals.

Keywords:opioid peptide, injection, luteinizing hormone, insemination performance