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Table 1 Composition of laying hens diets

From: Effect of dietary nonphytate phosphorus on laying performance and small intestinal epithelial phosphate transporter expression in Dwarf pink-shell laying hens

Items Dietary nonphytate phosphorus density, %
0.20 0.25 0.30 0.35 0.40
Ingredient, %      
Corn 60.49 60.31 60.12 59.95 59.75
Soybean meal 27.14 27.17 27.21 27.24 27.27
Soybean oil 0.97 1.03 1.09 1.15 1.21
Limestone 10.12 9.91 9.71 9.49 9.31
Dicalcium phosphate 0.47 0.77 1.06 1.36 1.65
Salt 0.3 0.3 0.3 0.3 0.3
Trace mineral premix1 0.2 0.2 0.2 0.2 0.2
Vitamin premix2 0.02 0.02 0.02 0.02 0.02
DL-methionine 0.17 0.17 0.17 0.17 0.17
Choline chloride 0.12 0.12 0.12 0.12 0.12
Total 100 100 100 100 100
Nutrient composition, %      
ME, Mcal/kg 2.7 2.7 2.7 2.7 2.7
CP 17 17 17 17 17
Calcium 3.75 3.75 3.75 3.75 3.75
Nonphytate phosphorus3 0.2 0.25 0.3 0.35 0.4
Lysine 0.86 0.86 0.86 0.86 0.86
Methionine + Cystine 0.65 0.65 0.65 0.65 0.65
Tryptophan 0.21 0.21 0.21 0.21 0.21
Threonine 0.66 0.66 0.66 0.66 0.66
  1. 1Mineral premix provided per kg of diet: Mn, 100 mg; Fe, 80 mg; Zn, 75 mg; Cu, 8 mg; I, 0.35 mg; Se, 0.15 mg.
  2. 2Vitamin premix provided per kg of diet: vitamin A, 12,500 IU; vitamin D3, 2,500 IU; vitamin E, 30 IU; vitamin K3, 2.65 mg; vitamin B1, 2 mg; vitamin B2, 6 mg; vitamin B12, 0.025 mg; biotin, 0.0325 mg; folic acid, 1.25 mg; pantothenic acid, 12 mg; niacin, 50 mg.
  3. 3Analyzed levels of nonphytate phosphorus were 0.19, 0.24, 0.31, 0.35, and 0.42 in each nonphytate phosphorus density diet.