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