Abstract

ABSTRACT Natural, organic, and grass-fed beef provides alternative products for consumers. During 2 consecutive yr, Bonsmara steers (n = 130) grazed winter pasture at 2 environments [semiarid, Uvalde (UVL), and humid, Overton (OVT)] and received pasture only (PAS) or pasture plus 0.8% BW/steer per day corn (SUPL) to quantify growth and carcass traits. Each year, 8 steers each from UVL and OVT were slaughtered off pasture and after a 90-d feedlot (FED) period. From initiation to termination (mid-May) of stocking on Maton rye (Secale cereale L.) plus TAM-90 annual ryegrass (Lolium multiflorum Lam.) at OVT and irrigated TAM-90 at UVL, ADG was greater (P 0.05) FED ADG. Growth in BW was linear (P 0.05) by SUPL. Tenderness was enhanced (P

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