Available Online: http://www.ejpau.media.pl/volume1/issue1/veterinary/abs-05.html
THE INFLUENCE OF BETA-ADRENERGIC RECEPTORS ON UTERUS MYOELECTRIC ACTIVITY IN SHEEP SENSITISED WITH STILBOESTROL
Józef Dejneka, Dionizy Zięba, Stanisław Raułuszkiewicz
The research was conducted on 5 inter-breed hybrid sheep, at the age of 10 to 24 months and of the body mass of 30-45 kg, which had bipolar electrodes implanted to uterus horns and shank. The registration of uterus myoelectric activity was performed on sheep 24 and 48 hours after sensitising with Stilboestrol, by the use of Reega Duplex TR XVI electroencephalograph. After recording the output activity, the sheep were applied intravenously in continuous injection: adrenaline – 0,12-0,18 μg · kg-1 · min-1, oxytocin – 0,25-0,4 i.u., propranolol – 1mg · kg-1, isoprenaline – 0,4-1,5 μg · kg-1 · min-1, salbutamole – 0,4-0,8 μg · kg-1 · min-1. The experiment results are presented in the inclosed drawings. The conducted research revealed that the stimulation of beta-adrenergic receptors causes the decrease or inhibition of uterus myoelectric activity of sheep sensitised with Stilboestrol. Beta-adrenergic receptors in sheep ute
Key words: sheep, uterus, myoelectric activity, beta-adrenergic receptors.