Abstract:The objective of this experiment was to identify the impact of supranutritional zinc (SUPZN) and ractopamine hydrochloride (RAC) supplementation of beef steers on postmortem protein degradation and tenderness development of extended (>14 d) aged steaks. It was hypothesized that RAC and SUPZN supplementation would influence meat quality development during extended aging of the longissimus thoracis muscle. Crossbred steers (n=27) were fed in a 2 × 2 factorial: control (CON; analyzed 36 mg Zn/kg dry matter… Show more
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