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Updated: Feb 8, 2026

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides
Published on: May 29, 2018
Oxidative stability of beef from steers finished exclusively with concentrate, supplemented, or on legume-grass
A P B Fruet1, A De Mello2, F Trombetta3
1Department of Science and Food Technology, Federal University of Santa Maria, 1000 Roraima Av., Santa Maria, RS 97105900, Brazil; Department of Agriculture, Nutrition, and Veterinary Sciences, University of Nevada, Reno, 1664 N. Virginia St., Mail stop 202, Reno, NV 89557, United States.
Abstract:
The objective of this study was to evaluate the effects of three finishing systems based on concentrate and legume-grass pasture on beef. Steers were finished for 91 days with an exclusively whole corn grain-based (GRAIN) diet, grazed on legume-grass pasture plus 1.4% of body weight of whole corn grain supplementation (SUPP), or grazed on legume-grass pasture (PAST) only. Lipid and myoglobin oxidation, pH, objective color, and α-tocopherol concentrations were evaluated on M. longissimus thoracis steaks. Dietary treatments did not affect pH and minimally affected protein carbonylation. Steaks from steers fed GRAIN were less red, showed higher lipid oxidation during retail display, and higher metmyoglobin formation from day 7 to 13 when compared to PAST. Levels of α-tocopherol were higher in steaks from steers fed diets containing legume and grass. Inclusion of roughage in finishing diets is essential to maintain retail color and prevent lipid and myoglobin oxidation.
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