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Quantitative Inheritance Of Calpastatin Activity As An Assessment Measure For Meat Tenderness In Brahman Steers, Fuad Mohammad Tawfiq Odeh
Quantitative Inheritance Of Calpastatin Activity As An Assessment Measure For Meat Tenderness In Brahman Steers, Fuad Mohammad Tawfiq Odeh
LSU Doctoral Dissertations
Calpastatin activity at 24 h postmortem is inversely proportional to postmortem tenderization and accounts for a greater proportion of the variation in beef tenderness. Tenderness was determined by measurement of 24 h postmortem longissimus muscle calpastatin activity (CA) and Warner-Bratzler shear force after 7 and 14 d of steak aging. The quantitative inheritance of tenderness in Brahman steers was investigated phenotypically by Multiple Trait Derivative-Free Restricted Maximum Likelihood (MTDFREML) procedures and genotypically by using restriction fragment length polymorphisms (RFLP), a microsatellite marker, and DNA sequence analyses. In experiment 1, MTDFREML was used to obtain the genetic parameters of tenderness traits …