Abstract
ABSTRACT Carcasses from 18 Angus and 16 Romo Sinuano × Angus cattle were evaluated for differences in selected carcass characteristics. Breed had no effect (P > 0.10) on hot carcass weight or m. longissimus thoracis area. Romo Sinuano × Angus heifers had more marbling and a higher quality grade than Romo Sinuano × Angus steers (P < 0.05). Extractable fat of ribeye steaks averaged 2.5% and cholesterol values were 56.2 mg/100 g. Shear force measures were unaffected (P > 0.05) by breed type or sex of animal. No difference (P > 0.10) in the acceptability of ribeye steaks from Angus or Romo Sinuano × Angus steers (chisquare value = 1.82) was found. These results indicate that carcass, ribeye steak and acceptability traits of the two breed groups were similar.
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