Animal Science, Department of
Nebraska Beef Cattle Reports
Date of this Version
2016
Citation
2016 Nebraska Beef Cattle Reports
Abstract
Ground beef from cattle fed corn- based diets with no wet distillers grains, wet distillers grains plus solubles, wet distillers grains + 1000 IU/hd/d vitamin E, wet distillers grains + 150 ppm/hd/d, Ethoxyquin/ TBHQ (Agrado Plus, Novus International, St. Louis, MO), or wet distillers grains + 500 IU/hd/d vitamin E + 150 ppm/hd/d Ethoxyquin/ TBHQ during the finishing phase were compared to analyze lipid oxidation and fatty acid composition. All ground beef lipid oxidation (raw or cooked) increased over time. Raw beef samples from cattle supplemented vitamin E sustained lower TBARS values than corn aft er 2 d of simulated retail display. An increase in PUFA and C18:2 was observed in lean and composite fatty acids in WDGS versus corn finished cattle. Th e potential susceptibility to oxidation found by feeding distillers grains was counteracted by supplementation of Vitamin E in the diet.
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