ZFBT.htm

NR ZFBT

AU Hopkins,D.L.; Shaw,F.D.; Baud,S.; Walker,P.J.

TI Electrical currents applied to lamb carcasses - effects on blood release and meat quality

QU Australian Journal of Experimental Agriculture 2006; 46: 885-889

PT article

AB The amount of collectable blood during the early phase of slaughter was determined for 48 lambs in 4 treatment groups: a control group (no current, no thoracic stick), a thoracic stick group only and groups subjected to a thoracic stick and either an electric current of 14 or 10 Hz frequency. The current was applied to the 'skin-on' carcass soon after the stunning/sticking process and subsequent to the thoracic stick, with a view to increasing the volume of blood released at that time. With both frequencies there was a small, but statistically significant (P < 0.05), increase in the amount of released blood over non-stimulated treatments. Samples of M. longissimus thoracis et lumborum were aged for 1 and 5 days before freezing. Warner ? Bratzler shear force measurements indicated the effectiveness of the current applications in reducing shear force with the 14 Hz waveform being superior to the 10 Hz waveform and in a related way the degradation of myofibrillar proteins was greater in meat subjected to the 14 Hz treatment when examined using the myofibrillar fragmentation index

SP englisch

PO Collingwood

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