NR ZCMB

AU Swatland,H.J.

TI Cardiac Activity During the Exsanguination of Pigs in an Abattoir

QU CAN. INST. FOOD SCI. TECHNOL. J. 1982; 15: 161-164

PT journal article

AB Forty-six pigs were electrically stunned, shackled by a hindlimb, hoisted off the floor and exsanguinated by puncture of the major blood vessels at the base of the neck. Electrocardiograms were recorded from needles in the left and right axillary region. At the time that exsanguination was started, there was no electrocardiographic activity and it was concluded that heart contraction was arrested. The cause of arrest was unknown. The heart might have stopped as a result of electrical stunning, or as a result of increased blood pressure in the head after shackling. After exsanguination was started, the atria and then the ventricles began to contract again, weakly at first but then progressively stronger. Heartbeats occurred for 11.0 +/- 4.1 min from the start of exsanguination. Rate of beating was variable after the heart restarted but eventually slowed down. Integrated cardiac activity was sometimes terminatedby atrioventricular block or by ventricular fibrillation.

SP englisch

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