The Effects of Fasting and Cold Stress on Dark-cutting and Bruising in Cattle
نویسنده
چکیده
Fifty Angus x Shorthorn heifers (mean body weight, 384 kg) were used to investigate the effects of a 72 h pre-slaughter fast and cold environmental conditions (accentuated by wetting down) on meat colour, muscle ultimate pH (pHu) and gusceptibility to bruising. Cattle fasted outdoors and wet down had a higher muscle pHu than cattle fasted in a shed (5.51 vs 5.37: P < 0.05) and a darker meat colour score than control cattle grazed at pasture (5.47 vs 4.56; P < 0.05). These treatments however, had no effect on the susceptibility to bruising as assessed by an experimentally induced bruise. (
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