Electrocardiogram of young sheep of different genotypes

The method of electrocardiography was used to study the electrical activity of the heart of purebred and crossbred young sheep of the Pechora Experimental Station at the age of 70-90 days. Statistically significant differences between groups of young sheep of different genotypes which were probably related to the constitutional features of animals were found in the amplitude of the R-wave and T-wave on the ECG in the III sagittal lead as well as in the position of the electrical axis of the heart. The results of the studies should be considered when assessing the functional state of the cardiovascular system of the offspring of sheep received from parents with different genetically determined constitutional productive qualities.