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Animal Sciences

Beef Research Report, 2003

ASL R1841

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Use Of 25-Hydroxyvitamin D3 To Improve Beef Tenderness, Aimee Wertz, Donald C. Beitz, Allen H. Trenkle, Travis J. Knight, Ronald L. Horst, Elisabeth J. Huff-Lonergan, Frederick C. Parrish Jr. Jan 2003

Use Of 25-Hydroxyvitamin D3 To Improve Beef Tenderness, Aimee Wertz, Donald C. Beitz, Allen H. Trenkle, Travis J. Knight, Ronald L. Horst, Elisabeth J. Huff-Lonergan, Frederick C. Parrish Jr.

Beef Research Report, 2003

Feeding the 25-hydroxyvitamin D3 (25-OH D3) metabolite of vitamin D3 has been reported to improve beef tenderness and result in lower vitamin D3 metabolite concentrations in meat. Because 25-OH D3 remains elevated in plasma for at least 8 d subsequent to feeding, we believe that 25-OH D3 can be fed as a one-time oral bolus and allow a flexible time frame for harvest with the same improvement in postmortem calcium-dependent proteolysis and beef tenderness. To test this hypothesis, 108 crossbred steers were allotted, six steers per pen to 18 pens and treatments were assigned randomly to pen. Treatments were 25-OH ...