206 Efficacy of Using Ammonium Chloride Supplements During Crisis Management to Stop Growth in Various Ages of Pigs

Abstract This project aimed to develop nutritional strategies “hold” pigs at no growth for 2-6 weeks during crisis management. Previously, was reduced in 25-kg fed hold-growth (HG) diets formulated with nutrients +2%NH4Cl (HG+2). Recovery only monitored 11-days. The current experiment assessed HG+2 25, 50, and 75kg 28-days followed by recovery market weight. Eighty crossbred were allotted (20kg) 16 pens. Other than the 28-d hold, standard marketed a constant Compared ADG of Ctl (0.963, 1.086, 1.094 kg/d) (P< 0.01) 81.9, 77.1, 79.9% 75 kg (0.174, 0.249, 0.220 kg/d). Pigs recovered required 14 extra days reach weight (128.6 kg). During hold phase feed intake 0.01). However, efficiency (0.310, 0.184, 0.132 G:F) compared (0.689, 0.397, 0.351 50 kg, respectively. Dramatic shifts occurred initial phases. Over entire trial, gain 13.0, 12.6, 12.7% total increased 1.9, 5.3 6.0% held Whole body DXA scans (n=4/treatment) revealed %bone mineral vs. (2.06 1.84, 1.82, 1.83%) No differences detected %Fat, %Lean, or traditional carcass traits (fat depth, loin % lean). adverse effects associated treatments observed. Thus, provided successful strategy empirical data will be used generate dynamic models guide decisions on economic consequences.