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Figure 4 | BMC Research Notes

Figure 4

From: Time and frequency domain analysis of heart rate variability in cattle affected by bovine spongiform encephalopathy

Figure 4

Supraventricular premature complex in an inoculated, BSE-negative steer. ECG of an 89 month-old Holstein-Friesian steer (CN1090) intracerebrally inoculated at five months of age with spleen homogenate collected from cattle orally dosed with BSE brainstem homogenate and culled at 10 months post inoculation. A normally shaped QRS complex occurs prematurely (supraventricular premature complex: SPC) and is not preceded by a P wave. There is also sinus arrhythmia present. Mean heart rate 57 beats per minute.

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