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Journal of Animal Science, Vol 77, Issue 8 2112-2118, Copyright © 1999 by American Society of Animal Science

JOURNAL ARTICLE

Identification of quality management practices to reduce the incidence of retail beef tenderness problems: development and evaluation of a prototype quality system to produce tender beef

J. D. Tatum, K. E. Belk, M. H. George and G. C. Smith
Department of Animal Sciences, Colorado State University, Fort Collins 80523, USA.

A prototype quality system for ensuring beef tenderness was designed and tested. The test population of cattle was genetically diverse, but it was constrained to include youthful (14- to 17-mo-old) steers with no more than 3/8 Bos indicus inheritance. Feeding and preharvest management of the cattle were consistent with procedures recommended for production of grain-finished beef of an acceptable quality level. In addition, the target endpoint for harvest (11-mm external fat thickness over the longissimus at the 12th rib) resulted in production of mostly Select and low Choice beef carcasses; 92% of the resulting carcasses qualified for these two grade levels. Application of the prototype quality system reduced the expected rate of nonconformance to desired tenderness specifications from about one in four loin steaks (23% for top sirloins and 26% for strip loins) to approximately one in eight loin steaks (13% for top sirloins and 12% for strip loins). Tenderness comparisons among sires suggested that the rate of nonconformance for strip loin steaks might be reduced even further by control of genetic inputs into the system. Use of process control in a quality management system was demonstrated to be an effective approach for assurance of beef tenderness.


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Copyright © 1999 by the American Society of Animal Science.