Four 2.54cm-thick steaks collected from each animal were identified and vacuum packed in polyethylene bags (water vapor permeability b10 g/m2/24 h at 38 °C and oxygen permeability b40 mL/m2/24 h at 25 °C) to determine the color, cooking weight loss (CWL) and shear force (SF) at four aging times (0, 7, 14 and 21 days post mortem) at 1 °C.