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Table 1 Composition and nutrient level of diets (air-dry basis)

From: Effects of dietary tryptophan and stocking density on the performance, meat quality, and metabolic status of broilers

Item 0.18% TRP 0.27% TRP
Ingredients, %   
Corn 64.64 64.54
Soybean meal 16.12 16.12
Cottonseed meal 6.00 6.00
Corn gluten meal 6.00 6.00
Soybean oil 3.23 3.23
Limestone 1.15 1.15
Dicalcium phosphate 1.56 1.56
NaCl 0.35 0.35
Vitamin premix1 0.02 0.02
Trace mineral premix2 0.20 0.20
DL-Met (98%) 0.04 0.04
L-Lys · HCl (78%) 0.40 0.40
L-Thr 0.06 0.06
Choline chloride (50%) 0.16 0.16
L-Trp (98%) 0.01 0.10
Nutrient levels 0.06 0.06
AME, Mcal/kg   
Crude protein,% 3.10 3.10
Calcium, % 19.00 19.00
Available phosphorus, % 0.88 0.88
Nutrient levels 0.40 0.40
Amino acid content   
Lys, % 1.00 1.00
Met, % 0.38 0.38
Thr, % 0.64 0.64
Trp, % 0.18 0.27
  1. 1The vitamin premix provided the following per kilogram of diet: vitamin A, 10,000 IU; vitamin D3, 2,400 IU; vitamin E, 20 IU; vitamin K3, 2.00 mg; thiamin, 2.00 mg; riboflavin, 6.40 mg; pyridoxin, 3.00 mg; VB12, 0.02 mg; folic acid, 1.00 mg; pantothenic acid, 10.00 mg; nicotinic acid, 30.00 mg; biotin, 0.10 mg.
  2. 2The mineral premix provided the following per kg of diet: Cu, 8 mg; Fe, 80 mg; Zn, 60 mg; Mn, 100 mg; I, 0.35 mg.