Physiological profiles of weaned and control calves in response to stress. Neutrophil percentage (A) rapidly increased on day 1 following weaning, indicating a profound stress response that was reciprocally matched by lymphocyte percentage (B). Platelet number (C) also decreased in response to weaning while haptoglobin (D) decreased in both weaned and control calves. * = P < 0.05, ** = P < 0.01, *** = P < 0.001 Lsmeans differ relative to baseline (Day 0). x,yLsmeans differ between location by P < 0.05.