ISSUE FOCUS 42 FEED & ADDITIVE MAGAZINE April 2025 Soybean meal Item Ingredient, % Corn Soybean meal, 47.7% CP Monocalcium P, 21% P Limestone Sodium chloride Liquid lysine 55% DL-Methionine L-Tryptophan L-Valine Thr Pro 802 Vitamin-trace mineral premix Phytase3 Total Calculated analysis Lys Ile:Lys Leu:Lys Met:Lys Met and Cys:Lys Thr:Lys Trp:Lys Val:Lys His:Lys Total Lys, % NE, kcal/lb SID Lys:NE, g/Mcal CP, % Ca, % STTD P, % Ca:P Analyzed values, % DM CP Low 84.50 13.18 0.23 0.82 0.50 0.45 0.04 0.04 0.02 0.13 0.05 0.05 100.00 0.75 59 150 33 60 66 21 72 43 0.85 1,157 2.94 13.7 0.42 0.28 1.15 86.3 12.9 Med-Low 81.45 16.56 0.20 0.80 0.50 0.30 0.01 0.02 ---- 0.07 0.05 0.05 100.00 0.75 67 161 31 60 66 21 77 47 0.86 1,149 2.96 14.9 0.42 0.28 1.12 86.3 14.7 Med-High 78.41 19.88 0.15 0.80 0.50 0.15 ---- ---- ---- 0.02 0.05 0.05 100.00 0.75 74 172 31 63 66 21 84 51 0.87 1,140 2.98 16.1 0.42 0.28 1.11 86.4 15.3 High 75.32 23.18 0.10 0.80 0.50 ---- ---- ---- ---- ---- 0.05 0.05 100.00 0.75 82 182 33 67 71 23 91 56 0.87 1,132 3.00 17.3 0.42 0.28 1.10 86.3 16.3 Table 2. Composition of phase 4 diets (as-fed basis)1 1Phase 4 diets were fed from approximately 215 to 290 lb. 2Thr Pro 80; CJ America-Bio, Downers Grove, IL. 3Optiphos (Huvepharma, Sofia, Bulgaria) was included at 1,251 FTU/kg providing an estimated release of 0.13% STTD P for all the diets. Standardized ileal digestible (SID) amino acids, %
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