Table 2. Feed ingredients and nutrient compositions of experimental diets

Item CFPH (%)
Days 1–10 Days 11–24 Days 25–42
0 2.5 5 7.5 0 2.5 5 7.5 0 2.5 5 7.5
Ingredients (g/kg)
 Maize grain 544.5 541.6 536.9 532.1 615.2 614.5 608.2 603.4 656.9 657.8 653.3 650.3
 Soybean meal (44% CP) 399.0 374.0 348.0 320.0 330.0 305.0 280.0 253.0 290.0 263.0 237.0 210.0
 Soybean oil 11.0 10.0 10.0 10.0 11.0 9.5 9.5 9.5 12.7 10.5 10.5 9.5
 CFPH - 25.0 50.0 75.0 - 25.0 50.0 75.0 - 25.0 50.0 75.0
 Limestone 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 11.5 11.5 11.0 11.0
 Dicalcium phosphate 18.5 18.5 18.5 18.5 17.8 17.8 17.8 17.8 16.5 16.5 16.5 16.5
 Sodium chloride 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.3 2.5 2.5 2.2 2.5
 Bicarbonate sodium 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
 Vitamin-mineral premix1) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
 DL- Methionine 99% 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.1 2.1 2.1 2.1
 L- Lysine HCL 1.4 1.7 2.1 2.6 1.3 1.6 2.0 2.5 1.2 1.2 1.2 1.7
 L- Threonine 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.6 0.6 0.6 0.6
 Washed sand (inert filler) - 4.5 9.8 17.1 - 1.9 7.8 14.3 - 3.3 9.6 14.8
Nutrient composition2)
 Metabolizable energy (MJ/kg) 12.0 12.0 12.0 12.0 12.4 12.4 12.4 12.4 12.6 12.6 12.6 12.6
 Crude protein (g/kg) 225.2 225.8 225.9 225.3 201.3 201.0 201.5 201.2 185.6 185.3 185.0 185.0
 Calcium (g/kg) 9.5 9.4 9.7 9.5 9.2 9.1 9.3 9.4 8.0 8.1 8.2 8.3
 Available phosphorus (g/kg) 4.5 4.6 4.7 4.8 4.4 4.4 4.6 4.7 3.8 3.9 4.0 4.1
 Sodium (g/kg) 1.9 1.9 2.0 2.0 2.1 2.1 2.2 2.5 1.7 1.7 1.7 1.8
 Lysine (g/kg) 13.7 13.7 13.7 13.7 11.9 11.9 11.9 11.9 10.5 10.5 10.2 10.3
 Methionine + Cystine (g/kg) 9.5 9.6 9.7 9.7 9.0 9.2 9.5 9.4 8.5 8.5 8.9 8.9
To provide vitamins and minerals per kilogram of diet: vitamin A, 17500 IU; vitamin E, 35 mg; vitamin D3,3900 IU; vitamin K3, 4.8 mg; riboflavin, 7.4 mg; vitamin B12, 1.7 mg; niacin, 56 mg; thiamine, 2.96 mg; biotin, 0.17 mg; pyridoxine, 4.55 mg; folic acid, 1.8 mg; ethoxyquin, 0.124 mg; pantothenic acid, 17.7 mg; choline chloride, 486.5 mg; cyanocobalamin, 0.025 mg; Zn-sulfate, 83 mg; Fe-sulfate, 39.5 mg; iodine (calcium iodate), 1.25 mg; Cu-sulfate, 19 mg; Mn-sulfate, 158 mg; selenium (sodium selenite), 0.30 mg.
Determined by the main ingredient analysis, then the results were used for calculating the nutritional compositions of diets.
CFPH, co-dried fish protein hydrolysate; CP, crude protein.