Table 1.
The composition of the experimental diets and proximate chemical analysis during the starter period.
| Groups | C | Gr1 | Gr2 | Gr3 | Gr 4 |
|---|---|---|---|---|---|
| CP% | Standard protein 23% | 22% CP | 21% CP | ||
| Lysine content | 1.44% Lys | 1.54% (110% from basal ration) | 1.68 % (120% from basal ration) | 1.44% | 1.44% |
| Ingredients, % | |||||
| Corn | 58.38 | 58.38 | 58.38 | 60.31 | 63.50 |
| Soybean meal, 44% CP | 34.92 | 34.78 | 34.58 | 32.90 | 29.59 |
| Corn gluten | 3 | 3 | 3 | 3 | 3 |
| Vegetable oil | 1.11 | 1.11 | 1.11 | 1.11 | 1.11 |
| Limestone | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 |
| Dicalcium phosphate | 0.97 | 0.97 | 0.97 | 0.97 | 0.97 |
| NaCl | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| DL-Met | 0.17 | 0.17 | 0.17 | 0.18 | 0.19 |
| L-Lys HCL | 0.30 | 0.44 | 0.64 | 0.38 | 0.49 |
| Vitamin-Mineral Premix | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
| Total | 100 | 100 | 100 | 100 | 100 |
| Nutritional Content | |||||
| DM, % | 87.62 | 87.49 | 87.31 | 87.53 | 87.40 |
| CP, % | 22.80 | 22.87 | 22.97 | 22.17 | 21.11 |
| CF, % | 2.69 | 2.68 | 2.67 | 2.65 | 2.59 |
| Ash, % | 5.36 | 2.62 | 5.43 | 2.63 | 4.74 |
| EE, % | 3.75 | 3.75 | 3.75 | 3.81 | 3.89 |
| ME, Kcal/g | 3.03 | 3.04 | 3.04 | 3.05 | 3.08 |
| Total AA, % | |||||
| Lys | 1.44 | 1.54 | 1.68 | 1.44 | 1.44 |
| Met | 0.56 | 0.56 | 0.56 | 0.56 | 0.56 |
| Met + cys | 1.08 | 1.08 | 1.08 | 1.07 | 1.06 |
| Thr | 0.96 | 0.96 | 0.96 | 0.95 | 0.94 |
| Val | 1.08 | 1.08 | 1.08 | 1.07 | 1.06 |
| Leu | 1.58 | 1.58 | 1.58 | 1.56 | 1.55 |
| Ileu | 0.97 | 0.97 | 0.97 | 0.97 | 0.97 |
| Arg | 1.52 | 1.52 | 1.52 | 1.51 | 1.51 |
1. Vitamin and mineral premix: vitamin premix provided the following per kilogram of diet: vitamin A, 9000 IU; cholecalciferol, 2000 IU; vitamin E, 36 IU; vitamin K3, 2 mg; thiamine, 1.8 mg; riboflavin, 6.6 mg; pantothenic acid, 10 mg; niacin, 30 mg; choline chloride, 250 mg; biotin, 0.1 mg; folic acid, 1 mg; pyridoxine 3.0 mg; vitamin B12, 0.015 mg; BHT, 1 mg. 2. Trace mineral premix provide the following in milligrams per kilogram of diet: iron, 50 mg; zinc, 85 mg; manganese, 100 mg; iodine, 1 mg; copper, 10 mg; selenium, 0.2 mg. 3. Represents dietary electrolyte balance as defined by dietary Na + K – Cl (in mEq/kg of diet).