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Hourly activity differs between calves diagnosed and treated at least once for BRD (RCASE) and those never treated (RCON). Active minutes was generated from an accelerometer collar (Allflex Livestock Intelligence, Madison, WI) with 2-h data logging intervals averaged by BRD status across the 56 d following feedlot arrival. Effect of BRD, P = 0.71; hour, P < 0.01; and BRD × hour, P = 0.04. *RCASE differs from RCON within hour (P < 0.05).
