Abstract
ABSTRACT The objective of this experiment was to investigate the effect of method and timing of weaning on the behavior and DMI of calves throughout weaning, transportation, and a simulated receiving period. Cow-calf pairs (n = 30) housed in a common paddock were randomly assigned to 1 of 3 treatments: preweaning by abrupt removal of the dam 5 d before transportation (AW-P), 2-stage weaning using nose flaps applied 5 d before transportation (2-STG), or abrupt weaning on the day of transport (AW-T). The experiment included 5 d of baseline measurement (BLN), a 5-d weaning period (WN), 4.5 h of transportation (TRANS), and a simulated receiving period encompassing two 1-wk measurement periods (REC1 and REC2, respectively). During the REC1 and REC2, calves were housed by treatment (n = 3). Pedometers were used to measure lying time and steps from BLN to REC1. During d 1 to 3 of WN, 2-STG calves took fewer steps than AW-P calves but more than AW-T calves ( P P P P
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