Cardiac Muscle Mass Distribution in the Domestic Turkey and Relationship to Electrocardiogram
1992
Ventricular weights were measured in 20-week-old male and female heavy turkeys, and electrocardiograms (ECGs) were recorded in 10and 20-week-old male and female heavy turkeys. Twenty-week-old males had heavier relative left ventricular and total ventricular weights than females of the same age. Left-to-right ventricular weight ratios were 4.4:1 in males and 4.5:1 in females. Heart rate was faster in young birds and in females, and that influenced the duration of the intervals of the ECG. Wave amplitudes were smaller in 10-week-old turkeys than in 20-week-old turkeys. There was no correlation between electrocardiographic parameters and ventricular weights of male and female turkeys. Two-dimensional ECGs were therefore found to be of minimal value for detecting turkeys with heavier ventricles.
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