Research Article
Evaluation of Protein Concentration and Limiting Amino Acids Including Lysine and Met + Cys in Prestarter Diet on Performance of Broilers
Table 2
The composition and calculated chemical analysis of diets in Experiment 1-2.
| Ingredients (g/Kg) | Treatments | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 |
| Corn | 522 | 521 | 521 | 520 | 566 | 565 | 565 | 565 | Soybean meal (44%) | 374 | 375 | 375 | 376 | 337 | 338 | 338 | 338 | Soy oil | 35 | 35 | 35 | 35 | 28 | 28 | 28 | 28 | Monocalcium phosphate | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | Limestone | 14.4 | 14.4 | 14.4 | 14.4 | 14.4 | 14.4 | 14.4 | 14.4 | Premix vit + min.1, 2 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | Salt | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 |
| Calculated chemical analysis |
| Metabolizable energy (Kcal/Kg) | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 | Crude protein (%) | 23.2 | 23.2 | 23.2 | 23.2 | 21 | 21 | 21 | 21 | Calcium (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | Available phosphorus (%) | 0.45 | 0.45 | 0.45 | 0.45 | 0.45 | 0.45 | 0.45 | 0.45 | Na (%) | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | Arginine | 1.39 | 1.39 | 1.39 | 1.39 | 1.39 | 1.39 | 1.39 | 1.39 | Lysine (%) | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | Methionine + cystine (%) | 0.85 | 0.9 | 0.95 | 1 | 0.85 | 0.9 | 0.95 | 1 |
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1Each kg of premix provided vitamin A, 10000 IU; vitamin D3, 2500 IU; vitamin K, 2.4 mg; vitamin E, 44 IU; biotin, 0.1 mg; folic acid, 2.0 mg; niacin, 25 mg; calcium pantothenate, 14.32 mg; pyridoxine, 3.10 mg; riboflavin, 5 mg; thiamin, 1.2 mg; vitamin B12, 10.5 g; Fe, 85 mg; Mn, 125 mg; Cu, 7.8 mg; Se, 0.09 mg; Zn, 60 mg; choline chloride, 5.5 mg.
2Lysine and methionine were added inside of premix.
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