Cinar A, Bagci C, Belge F, Uzun M
Department of Physiology, Faculty of Veterinary Medicine, University of Yuzuncu Yil, Van, Turkey.
Avian Dis. 1996 Oct-Dec;40(4):919-23.
In this study, standard limb lead electrocardiograms (ECG) were recorded in 50 Pekin ducks. The ECG exhibited P, R, S, and T waves. A Q wave was observed in 30% of leads aVR aVL. All waves in lead I were of very low amplitude or almost isoelectric. The P wave was 20% negative, 80% positive in lead aVR and always positive in other leads. The duration and amplitude of P wave were 0.025 sec and 0.17 mV, respectively, and the P-R interval was 0.06 sec in lead II. A Q wave was observed in 30% of leads aVR and aVL but was invisible in other leads. The duration of QRS complex was 0.036 sec and its amplitude was 0.069 mV. The S wave (rS) was greater than the R wave in leads III and aVF. The R and S waves were equal in lead III (66%). The mean duration and amplitude of T wave were 0.05 sec and 0.22 mV, respectively. The T wave was negative in leads aVR and aVL and positive in other leads. The Q-T interval was 0.10 sec. The mean heart rate was 281.3 (220-375) beats/min. The average value of the mean electrical axis was +147 degrees (+95 degrees to -160 degrees).
在本研究中，对50只北京鸭记录了标准肢体导联心电图（ECG）。心电图显示有P、R、S和T波。在30%的aVR和aVL导联中观察到Q波。I导联中的所有波振幅都非常低或几乎等电位。aVR导联中P波20%为负向、80%为正向，在其他导联中始终为正向。II导联中P波的持续时间和振幅分别为0.025秒和0.17毫伏，P-R间期为0.06秒。在30%的aVR和aVL导联中观察到Q波，但在其他导联中不可见。QRS波群的持续时间为0.036秒，振幅为0.069毫伏。III导联和aVF导联中S波（rS）大于R波。III导联中R波和S波相等（66%）。T波的平均持续时间和振幅分别为0.05秒和0.22毫伏。aVR和aVL导联中T波为负向，其他导联中为正向。Q-T间期为0.10秒。平均心率为281.3（220 - 375）次/分钟。平均电轴的平均值为+147度（+95度至 - 160度）。
