Meat tenderness and the calpain proteolytic system in longissimus muscle of young bulls and steers.

@article{Morgan1993MeatTA,
  title={Meat tenderness and the calpain proteolytic system in longissimus muscle of young bulls and steers.},
  author={John J. Morgan and Tommy L. Wheeler and Mohammad Koohmaraie and Jeffrey W. Savell and John D. Crouse},
  journal={Journal of animal science},
  year={1993},
  volume={71 6},
  pages={1471-6}
}
The objectives of this study were to examine the effects of castration on the calpain proteinase system (mu-calpain, m-calpain, and calpastatin) activities and meat tenderness. Six each, MARC III bulls and steers were slaughtered at approximately 12 mo of age. Longissimus muscle samples were obtained for determining myofibril fragmentation index, Warner-Bratzler shear force, and sensory panel evaluation at 1, 7, and 14 d postmortem, and mu- and m-calpain and calpastatin activities at 24 h… CONTINUE READING