TABLE 1.
The composition and nutrient levels of the experimental diets.
| Ingredients (%) | 1–21 days | 21–35 days |
| Corn (8.5% CP) | 57.00 | 62.00 |
| Soybean meal (46% CP) | 34.40 | 29.50 |
| Soya bean oil | 3.90 | 4.50 |
| Dicalcium phosphate | 1.70 | 1.55 |
| L-Limestone | 1.67 | 1.42 |
| Sodium chloride | 0.31 | 0.28 |
| Choline chloride (60%) | 0.26 | 0.20 |
| L-Lysine⋅H2SO4 (70%) | 0.02 | – |
| DL-methionine (98.5%) | 0.49 | 0.30 |
| Vitamin premix* | 0.05 | 0.05 |
| Mineral premix† | 0.20 | 0.20 |
| Total | 100 | 100 |
| Calculated chemical composition | ||
| CP, % | 21.0 | 19.0 |
| ME (MJ/kg) | 12.6 | 13.0 |
| Ca, % | 0.94 | 0.90 |
| Available P, % | 0.43 | 0.40 |
| Lys, % | 1.10 | 0.97 |
| TSAA, % | 0.87 | 0.66 |
| Thr, % | 0.77 | 0.70 |
| Trp, % | 0.26 | 0.23 |
| Val, % | 0.86 | 0.78 |
| Ile, % | 0.87 | 0.78 |
| Leu, % | 1.60 | 1.52 |
| Phe, % | 1.08 | 0.98 |
| Arg, % | 1.39 | 1.24 |
| His, % | 0.56 | 0.51 |
| Gly, % | 0.82 | 0.74 |
| Gly + Ser, % | 1.78 | 1.62 |
*Vitamin premix provides the following per kg of diet: VA, 8000 IU; VD3, 3000 IU; VE, 20 IU; VK, 2 mg; VB1, 4 mg; riboflavin, 8 mg; D-pantothenic acid, 11 mg; VB5, 40 mg; VB6, 4 mg; VB12, 0.02 mg; biotin, 0.15 mg; folic acid, 1.0 mg; choline, 700 mg. †Mineral premix provides the following per kg of diet: Fe (as ferrous sulfate), 80 mg; Zn (as zinc sulfate), 75 mg; Mn (as manganese sulfate), 80 mg; Cu (as copper sulfate) 10 mg, I (as potassium iodide), 0.40 mg; and Se (as sodium selenite), 0.30 mg.