Abstract
Effects of intravenously infused adenosine on the ruminal electromyogram (EMG) and heart rate were investigated in conscious goats. Pompt inhibition of the ruminal EMG and tachycardia were observed by a low dose (0.2-0.5 mg/min) of adenosine. The responses were rapidly disappeared by quit of infusion. The positive chronotropic action seems to be species specific in goat.
