Abstract
The aim of this study was to describe normal electrocardiogram patterns and values in two species of conscious pheasants (golden and silver). The standard bipolar and augmented unipolar limb leads electrocardiograms were recorded in the birds. The wave forms were analyzed in all leads at 50 mm/sec and at 10 mm = 1 mV to determine PR, QRS, ST, and QT durations and P, net QRS complex, and T amplitudes. The polarity of each wave form was tabulated in all leads. The mean electrical axis for the frontal plane, calculated using leads II and III, was mostly negative in two species (-43 ± 28.0° in golden and -92 ± 10.0° in silver pheasant). The P wave was predominantly positive in most of the leads. The pattern of wave forms of the QRS complexes were different (Rs, QS, rS, R, RS, QR, qR). The T wave was almost positive in leads I, II, III, and aVF. The heart rates of the birds were mean (± SD) of 320 ± 36 beats/min (golden) and 314 ± 31 beats/min (silver). Description of normal electrocardiogram parameters will facilitate a better understanding of electrocardiogram changes of unhealthy birds.
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Schedule a callMore From: Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians
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