Advances in Animal Cardiology
Online ISSN : 1883-5260
Print ISSN : 0910-6537
ISSN-L : 0910-6537
The RR Intervals and Partial Conduction Times in the Electrocardiogram of Buffalo
Arata KOGAKousuke OHATAMasahito NAKAJIMARyohei FURUKAWATateki CHIKAMUNEHisashi HIROSE
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1993 Volume 26 Issue 1 Pages 1-6

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Abstract
To characterize the cardiac function of buffaloes in terms of their electrocardiogram (ECG), the correlations between RR intervals and partial conduction times in ECG were compared between buffaloes and Holstein cattle. The body sizes and body weights of buffaloes were smaller than those of Holstein cattle.
Two buffaloes and two Holstein cattle were exposed to a heat stress to change their heart rates. The RR, PQ and QT intervals were measured from the ECG in each species. A common positive correlation in the two species was recognized in the RR-PQ and RR-QT.
No differences in wave characteristics were found in the ECGs. Although the heart rate per minute in the resting state of buffalo is lower than that of Holstein cattle, the characteristics of the partial conduction times of the heart do not differ between the two species.
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© Japanese Society of Veterinary Cardiology
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