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. 2022 Jun 30;101(9):102038. doi: 10.1016/j.psj.2022.102038

Table 4.

Ingredient, calculated, and analyzed nutrient composition (%, unless otherwise noted) of experiment 2 grower diets fed to broilers from 14 to 28 d post-hatch.

Ingredient, as-fed CTL RCP LCP881 LCP100 LCP112 LCP124
 Corn 60.68 62.28 68.32 68.00 68.00 67.68
 Soybean meal (48%) 32.72 31.23 25.34 25.34 25.34 25.34
 Poultry fat 3.28 2.98 1.76 1.84 1.92 2.01
 Limestone 1.03 1.04 1.07 1.07 1.07 1.07
 Dicalcium phosphate 0.94 0.94 0.97 0.97 0.97 0.98
 Sodium chloride 0.27 0.26 0.20 0.20 0.20 0.20
 L-Met 0.29 0.30 0.35 0.35 0.35 0.36
 L-Lys·HCl 0.14 0.19 0.37 0.37 0.37 0.37
 L-Thr 0.11 0.13 0.20 0.20 0.21 0.21
 L-Val - 0.02 0.12 0.12 0.12 0.12
 L-Ile - 0.02 0.11 0.11 0.11 0.11
 L-Arg - - 0.17 0.17 0.17 0.17
 Glycine - - - 0.23 0.46 0.69
 Cellulose2 - 0.04 - - - -
 Vitamin premix3 0.10 0.10 0.10 0.10 0.10 0.10
 Mineral premix4 0.10 0.10 0.10 0.10 0.10 0.10
 Se premix5 (0.06%) 0.02 0.02 0.02 0.02 0.02 0.02
 Choline chloride (60%) 0.04 0.05 0.07 0.07 0.07 0.07
 Sodium bicarbonate 0.19 0.22 0.32 0.32 0.32 0.32
 Copper chloride6 (54%) 0.02 0.02 0.02 0.02 0.02 0.02
 Coccidiostat7 0.05 0.05 0.05 0.05 0.05 0.05
 Phytase8 0.01 0.01 0.01 0.01 0.01 0.01
Calculated nutrient composition
 AMEn, kcal/kg 3,100 3,100 3,100 3,100 3,100 3,100
 CP 20.65 20.17 18.19 18.44 18.68 18.93
 Digestible Lys 1.15 1.15 1.15 1.15 1.15 1.15
 Digestible Met 0.61 0.62 0.64 0.64 0.64 0.64
 Digestible TSAA 0.87 0.87 0.87 0.87 0.87 0.87
 Met:Cys ratio 70:30 71:29 74:26 74:26 74:26 74:26
 Digestible Thr 0.77 0.77 0.77 0.77 0.77 0.77
 Digestible Val 0.87 0.87 0.87 0.87 0.87 0.87
 Digestible Ile 0.79 0.78 0.78 0.78 0.78 0.78
 Digestible Arg 1.25 1.21 1.21 1.21 1.21 1.21
 Digestible Trp 0.25 0.24 0.20 0.20 0.20 0.20
 Total Gly + Ser 1.92 1.87 1.65 1.87 2.10 2.32
 Total Ca 0.87 0.87 0.87 0.87 0.87 0.87
 Available P 0.44 0.44 0.44 0.44 0.44 0.44
 Choline, mg/kg 1,750 1,750 1,750 1,750 1,750 1,750
 dEB, mEq/kg 262 254 226 226 226 226
Analyzed nutrient composition
 CP 20.94 21.31 18.94 - - -
 Total Lys 1.31 1.35 1.29 1.26 1.23 1.26
 Total TSAA 0.82 0.83 0.85 0.87 0.90 0.86
 Total Thr 0.92 0.96 0.87 0.90 0.81 0.86
 Total Val 1.03 1.06 0.99 0.97 0.94 0.96
 Total Ile 0.91 0.92 0.85 0.85 0.83 0.84
 Total Leu 1.85 1.86 1.64 1.62 1.54 1.64
 Total Arg 1.41 1.41 1.32 1.30 1.27 1.31
 Total Trp 0.28 0.29 0.24 0.23 0.22 0.24
 Total Gly + Ser 1.96 1.95 1.66 1.87 2.02 2.25
 Glyequi 1.65 1.64 1.40 1.61 1.78 1.99

Abbreviations: AMEn, nitrogen-corrected apparent metabolizable energy; CTL, control; dEB, dietary electrolyte balance; LCP, low crude protein; RCP, reduced crude protein.

1

For the mixing of the LCP diets, LCP88 was considered the basal and LCP124 the summit diet and these diets were blended to create the LCP100 and LCP 112 diets.

2

The inclusion of cellulose in the RCP diet was formulated for use in a separate experiment as an inert filler, and served no relevant purpose in this study.

3

The vitamin premix contained (per kg of diet): vitamin A, 6,350 IU; vitamin D3, 4,536 ICU; vitamin E, 45 IU; vitamin B12 0.01 mg; mendadione, 1.24 mg; riboflavin, 5.44 mg; d-pantothenic acid, 8.16 mg; niacin, 31.75 mg; folic acid, 0.73 mg; pyridoxine, 2.27 mg; thiamine, 1.27 mg.

4

The mineral premix contained (per kg of diet): calcium, 55.5 mg; manganese, 100.0 mg; magnesium, 27.0 mg; zinc, 100.0 mg; iron, 50.0 mg; copper, 10.0 mg; iodine, 1.0 mg.

5

Supplied 0.12 mg of selenium per kg of diet.

6

IntelliBond C, Micronutrients, Indianapolis, IN.

7

Salinomycin sodium, Bio-Cox, Huvepharma Inc., Peachtree City, GA.

8

Optiphos, Huvepharma Inc., Peachtree City, GA.