Table 1 Ingredients and analyzed crude protein composition of experimental diets (as-fed basis)
| Item | Dietary treatment |
| Corn(Diet 1) | Basal + corn(Diet 2) | Basal(Diet 3) | Basal + SBM1 (Diet 4) | SBM(Diet 5) | NFD2 |
| Ingredients(%) | Corn | 93.00 | 79.00 | 65.00 | 32.50 | - | - |
| SBM | - | 14.00 | 28.00 | 34.00 | 40.00 | - |
| Corn starch | - | - | - | 25.50 | 51.00 | 29.21 |
| Sucrose | - | - | - | - | - | 55.00 |
| Soybean oil | 2.00 | 2.00 | 2.00 | 3.00 | 4.00 | 4.00 |
| Monocalcium phosphate | 2.10 | 2.10 | 2.10 | 2.10 | 2.10 | 2.10 |
| Limestone | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 |
| Vitamin-mineral premix3 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 1.00 |
| Salt | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | - |
| Chromic oxide | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 |
| Cellulose | - | - | - | - | - | 5.00 |
| Choline chloride | - | - | - | - | - | 0.25 |
| Sodium bicarbonate | - | - | - | - | - | 0.75 |
| Potassium chloride | - | - | - | - | - | 0.30 |
| Magnesium oxide | - | - | - | - | - | 0.09 |
| Potassium carbonate | - | - | - | - | - | 0.30 |
| Total | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 |
| Analyzed nutrient (%) | Crude protein | 8.77 | 13.8 | 19.1 | 20.7 | 20.7 | 0.33 |
1 SBM = soybean meal.
2 NFD = nitrogen-free diet.
3 Provided the following quantities per kilogram of premix: vitamin A, 1,600,000 IU; vitamin E, 800 IU; vitamin K3, 132 mg; vitamin B1, 97 mg; vitamin B2, 500 mg; vitamin B6, 200 mg; vitamin B12, 1,200 mg; nicotinic acid, 2,000 mg; calcium pantothenate, 800 mg; folic acid, 60 mg; choline chloride, 35,000 mg; zinc, 9,000 mg as zinc sulfate; manganese, 12,000 mg as manganese sulfate; iron, 94,000 mg as iron sulfate; copper, 500 mg as copper sulfate; iodine, 250 mg as calcium iodide; cobalt, 100 mg as cobalt sulfate; selenium, 50 mg as sodium selenite.