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Journal of Animal Science, Vol 73, Issue 8 2289-2294, Copyright © 1995 by American Society of Animal Science

JOURNAL ARTICLE

Dietary vitamin E supplementation shifted weight loss from drip to cooking loss in fresh beef longissimus during display

M. Mitsumoto, R. N. Arnold, D. M. Schaefer and R. G. Cassens
Department of Meat and Animal Science, University of Wisconsin, Madison 53706-1181, USA.

Effects of dietary vitamin E supplementation on drip loss, cooking loss, and muscle fiber disruption in fresh beef loin steaks from Holstein and crossbred beef steers were studied. Nine Holstein steers and nine beef steers were fed a control diet and nine Holstein steers and eight beef steers were supplemented daily with 298 IU of vitamin E/kg of diet for 211, 232, or 252 d. Drip loss, cooking loss, cooking yield, and shear value were measured in each longissimus lumborum sample displayed in PVC film for 2, 6, 10, or 14 d. Dietary vitamin E supplementation produced meat that had smaller (P < .001) increases in drip loss during 14 d of display but higher (P < .01) cooking losses. Cooking yield was reduced (P < .05) by vitamin E supplementation. Vitamin E supplementation reduced (P < .01) muscle cell disruption in beef steak displayed for 14 d. These results indicated that dietary vitamin E treatment stabilized cell integrity and enhanced the ability of beef steak to hold sarcoplasmic components during display, although subsequent losses due to cooking were greater.




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Copyright © 1995 by the American Society of Animal Science.