Effects of Reduced-Fat Modified Distillers Grains with Solubles in Finishing Diets of Feedlot Steers on Fresh and Processed Beef Quality | Zendy

M. Nelson | Zendy; C. E. Fehrman | Zendy; A. A. Hohertz | Zendy; A. DiCostanzo | Zendy; R. B. Cox | Zendy

Open Access

Effects of Reduced-Fat Modified Distillers Grains with Solubles in Finishing Diets of Feedlot Steers on Fresh and Processed Beef Quality

Author(s) -

M. Nelson,

C. E. Fehrman,

A. A. Hohertz,

A. DiCostanzo,

R. B. Cox

Publication year - 2017

Publication title -

meat and muscle biology

Language(s) - English

Resource type - Journals

ISSN - 2575-985X

DOI - 10.22175/rmc2016.066

Subject(s) - marbled meat , feedlot , distillers grains , tbars , zoology , loin , dry matter , carcass weight , crossbreed , tenderness , chemistry , food science , body weight , biology , biochemistry , oxidative stress , lipid peroxidation , endocrinology

Dietary treatments consisted of: 14.93% RFMDGS of diet dry matter (DMD) with 0.74% corn oil DMD (FF15); 15.60% RFMDGS DMD (RF15); 30.84% RFMDGS DMD (RF30); and 46.27% RFMDGS DMD (RF45). All steers received Rumensin. Steers were fed dietary treatments for 181 d utilizing a Calan gate system then fed a common diet for 4 d before harvesting at a commercial abattoir. Hot carcass weight (HCW), 12th rib backfat (BF), ribeye area (REA), percent kidney, pelvic, and heart fat (KPH), and marbling score data were collected 24 h postmortem. Strip loins (IMPS #180) were collected for vacuum purge loss evaluation and fabricated into 2.54 cm steaks for drip loss, cook loss, Warner-Bratzler shear force (WBSF), and sensory evaluation (n = 122). Shoulder clods (IMPS # 114) were used to create ground beef and bologna. Thiobarbituric acid reactive substances (TBARS) analysis occurred utilizing ground beef while bologna samples were evaluated for sensory attributes (n = 108). Twelfth rib backfat was analyzed for fatty acid composition and calculated iodine value. All data was analyzed using PROC MIXED procedure in SAS (SAS Inst. Inc., Cary, NC). Results

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