Figure 8. GPx activity (nmoles/min/mg protein) in fresh and aged Biceps femoris muscle of steers from pasture, pasture and supplement and feedlot based feeding systems. Data are mean ± SEM (n=8). Lower letters means significant differences among feeding systems for fresh and aged (italics), (P<0.05). * shows significatn differences between fresh and aged meat (P<0.05). Main effects: Feeding system: P<0.001 Pasture < Pasture and supplement < Feedlot. Ageing: P<0.001 Fresh > Aged

From

Influence of Feeding System on Lipids and Proteins Oxidation, and Antioxidant Enzymes Activities of Meat from Aberdeen Angus Steers

A. Terevinto, M.C. Cabrera, A. Saadoun

Journal of Food and Nutrition Research. 2015, 3(9), 581-586 doi:10.12691/jfnr-3-9-4