Effect of different types and locations of the electrode source of an extra low voltage electrical stimulation system on beef quality

The purpose of this study was to investigate the histochemical staining properties of the myosin ATPase (pH 9.4) and succinate dehydrogenase ( S D H ) stains as fitnctions of muscle for electrical stimulation and postmortem time. Musclr blocks, 2 cubic centimeters in volume, were removed from the gluteirs medius o f j v e electrically stimulated (ES) a n d j v e nonstimulated ( N S ) contralateral beef carcass sides at 0 , 2 and 24 h after stirnulation. The p H of the gluteus mediiis decreased significantly in both the ES (5.86) and NS (6.14) sides lvithiii n c~~ hours postmortem mid ihe 24 h pH Iwlues Hxere 5.76 and 5.72, respectirvly. Muscle histochemical staining characteristics for myosin ATPase (pH 9.4) did not change ( P > .05) within 24 h postmortem for either ES or NS muscle. A change in the staining characteristics for SDH was found for both ES and N S at 24 h postmortem. No difference in histochemical staining characteristic3 M'OS found as a result of ES.

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Effect of different types and locations of the electrode source of an extra low voltage electrical stimulation system on beef quality

Cited by 4 publications

References 5 publications

Studies of extra low voltage electrical stimulation of mature beef carcasses

Studies of extra low voltage electrical stimulation of mature beef carcasses

Response of bovine muscles to direct high voltage electrical stimuli

EFFECTS OF POSTMORTEM TIME AND ELECTRICAL STIMULATION ON HISTOCHEMICAL MUSCLE FIBER STAINING AND pH IN THE MIDDLE GLUTEAL MUSCLE FROM BEEF CATTLE

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