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Abstract
One hundred barrows were supplemented one of five different levels of a vitamin B3 analog, nicotinamide riboside (NR), beginning 11 d prior to a fatigue inducing event. Barrows were then harvested, fabricated, and loins from each were aged in vacuum bags for 10 d. Chops from those loins were used in an 8-d simulated retail display and other laboratory assays to determine the effects of NR supplementation on fatigued barrow color stability and related measures. Supplementation of NR did not produce any positive effects on color stability, metmyoglobin reducing ability, oxygen consumption, carcass yields, postmortem pH, water holding capacity, proximate composition, muscle fiber type, muscle fiber cross-sectional area. Day of display did affect all measures during the simulated retail display period of the study.