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Effect Of Feeding Zilpaterol Hydrochloride For 20 Days To Calf-Fed Holstein Steers With A 3 Or 10 Day Withdrawal Period Antemortem On Carcass Characteristics And Tenderness, Andrew D. Hosford
Master's Theses
The effect of feeding Zilpaterol hydrochloride (ZH) with a 3 or 10 d withdrawal (WD) period to calf-fed Holstein steers (N=2993) on carcass characteristics and tenderness were evaluated in a feed lot experiment. Cattle were fed 0 or 8.3 mg/kg of ZH for the final 20 d of the feeding period, each treatment level was assigned a WD period of either 3 or 10 d. Treatment groups consisted of Control 3 d WD (C3) and 10 d WD (C10), and ZH fed 3 day WD (Z3) and 10 d WD (Z10). Cattle were slaughtered at a commercial facility, carcasses chilled …