The present experiments were conducted to determine 1) the relationship between shear force and overall tenderness of 10 major beef muscles, 2) the effect of Bos indicus inheritance on the tenderness of various beef muscles, 3) whether differences in tenderness between genotype are affected by method of cookery, and 4) the relationship between tenderness of the longissimus and tenderness of oth...

A genome scan was conducted using 196 microsatellite DNA markers spanning 29 autosomal bovine chromosomes and Warner-Bratzler shear force collected at d 2 and 14 postmortem on steaks from the longissimus muscle of 294 progeny from one Brahman x Hereford bull mated to Bos taurus cows to identify QTL for beef tenderness. One QTL was identified and located 28 cM (95% confidence interval is 17 to 4...

Three groups of 12 high percentage Charolais steers were slaughtered on three dates. Steers (n = 27) were infused immediately after exsanguination at 10% of BW with a solution containing saccharides, NaCl, and phosphates (MPSC solution; MPSC, Inc., St. Paul, MN) plus either 500 ppm vitamin C (MPSC+C), 500 ppm vitamin E (MPSC+E), or 500 ppm vitamin C plus 500 ppm vitamin E (MPSC+C+E). Noninfused...

The objective of this paper is to review strategies that are known to enhance the level of marbling in beef. Research has demonstrated that marbling contributes significantly to beef’s eating quality—primarily to flavor and juiciness—but also to tenderness. Furthermore, a recent study showed that consumers are willing to pay 50% more for well-marbled USDA Prime grade steaks than for lesser-marb...

INTRODUCTION Muscle profiling research conducted in the early part of this decade by the University of Nebraska and the University of Florida for The Beef Checkoff was highly successfully. This research led to the development of the flat iron steak, the petite tender, and the ranch cut from the shoulder clod and has been credited with increasing the value of market cattle by $50-$70 per head. I...