Clinical Electrocardiogram of Laboratory White New Zealand Rabbits

Abstract

Rezakhani, A. and Rezaian, G. 1995. Clinical electrocardiogram of laboratory White New Zealand rabbits. J. Appl. Anim. Res., 7: 63–68.

This study reports the observations on electrocardiogram (ECG) in 119 White New Zealand rabbits held in dorsal and sternal positions. The analysis of ECG revealed mean heart rate 260 ± 41 bpm in both male and female rabbits and no arrhythmia except in one rabbit which had sinus arrhythmia. Mean values of ECG intervals (P, P-R, QRS, Q-T) in lead II were 2.49 ± 0.55, 5.60 ± 0.66, 3.12 ± 0.50 and 14.40 ± 1.31 milliseconds, respectively. Mean ECG amplitudes in lead II were: P 0.038, Q 0.053, R 0.306, S 0.144 and T 0.128 mV. The most significant features were variability of QRS complexes, great variability in the vector of QRS of the frontal plane, concordant P and T waves with QRS complex and isoelectric P and T waves.

Key words:

• ECG
• Rabbit
• White New Zealand