EN
			
			
			The research was conducted on 7 inter-breed hybrid sheep, at the age from 10 to 48 months and of the body mass of 32-47 kg, which had bipolar electrodes implanted to the uterus shank and horns. The registration of uterus myoelectrical activity was performed on non-sensitised sheep and 24-48 hours after stilboestrol sensitisation, with the use of electroencephalograph. After recording the output activity, the sheep were administered in continuous infusion: adrenaline  agonist of alpha and beta  adrenergic receptors in the dose of 0.12-0.18 μg ˇ kg-1 ˇ min-1; detomidin  agonist of alpha-adrenergic receptors in the dose of 0.1  1.1 μg ˇ kg-1 ˇ min-1; phenylephryn  agonist of alpha1-adrenergic receptors in the dose of 2.1  2.9 μg ˇ kg-1 ˇ min-1; xylasine  agonist of alpha2-adrenergic receptors in the dose of 0.5  4.0 μg ˇ kg-1 ˇ min-1; prazosin  antagonist of alpha1