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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
  • Figure 1. Lipid oxidation (TBARS, mg MDA/kg of meat) in fresh and aged Biceps femoris muscle in steers from pasture, pasture and supplement and feedlot based feeding systems. Data are mean ± SEM (n=10). Different lower letters means statistical significance among systems for aged meat (P<0.05). *shows statistical difference between fresh and aged meat (P<0.05). Main effects: Feeding system: No Significant Ageing: (P<0.01) Aged > Fresh
  • Figure 2. Carbonyls protein (nmoles DNPH/mg protein) in fresh and aged Biceps femoris muscle in steers from pasture, pasture and supplement, and feedlot feeding systems. Data are mean ± SEM (n=10). Different lower letters means statistical significance among feeding systems for fresh meat (P<0.05). *shows significant difference between fresh and aged meat (P<0.05). Main effects: Feeding systems (P<0.01). Pasture > Pasture + supplement, Feedlot. Ageing: (P<0.01) Aged > Fresh
  • Figure 3. Catalase activity (μmoles/min/g meat) in fresh and aged Biceps femoris muscle of steers from pasture, pasture and supplement and feedlot based feeding systems. Data are mean ± SEM (n=10). Main effects: Feeding systems: No Significant Ageing: No Significant
  • Figure 4. Catalase activity (nmoles/min/mg protein) in fresh and aged Biceps femoris muscle of steers from pasture, pasture and supplement, and feedlot based feeding systems. Main effects: Feeding system: No Significant. Ageing: No Significant
  • Figure 5. SOD activity (UI/g meat) 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). * shows significant differences between fresh and aged meat (P<0.05). Main effects: Feeding system: P<0.05 Pasture < Pasture + Supplement, feedlot. Ageing: P<0.01 Fresh < Aged
  • Figure 6. SOD activity (UI) 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). * shows significant differences between fresh and aged meat (P<0.05). Main effects: Feeding system: P<0.05 Pasture < Pasture + Supplement, Feedlot Ageing: P<0.01 Fresh<Aged
  • Figure 7. GPx activity (µmoles/min/g meat) in fresh and aged Biceps femoris muscle in steers from pasture, pasture and supplement and feedlot based feeding systems. Data are mean ± SEM (n=8). Different lower letters means significant differences among systems for fresh muscle and for aged muscles (italic) (P<0.05). *shows significant differences between fresh and aged (p>0.05). Main effects: Feeding systems: P<0.001 Pasture<pasture + supplement, feedlot Ageing: P<0.01 Fresh>Aged
  • 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