Table 1.
Ingredient composition of basal diets fed four levels of sodium with two sources of sodium salts at different stages of growth in broilers 1)
| Ingredients (%) | Pre-starter | Starter | Grower | Finisher |
|---|---|---|---|---|
| (1 – 10 d) | (11 – 20 d) | (21 – 33 d) | (34 – 42 d) | |
| Corn | 46.93 | 47.54 | 67.46 | 67.94 |
| Broken rice | 13.46 | 16.16 | 0.07 | − |
| Soybean meal | 27.63 | 29.11 | 26.93 | 24.47 |
| Canola Meal | 6.39 | 1.24 | − | − |
| Oil2) | 1.62 | 2.21 | 1.88 | 3.94 |
| DCP | 2.16 | 2.02 | 1.89 | 1.60 |
| Limestone | 1.04 | 0.94 | 1.05 | 1.10 |
| L-Lysine HCl | 0.23 | 0.22 | 0.20 | − |
| L-Lysine sulphate | − | − | − | 0.34 |
| NaCl | 0.15 | 0.16 | 0.16 | 0.16 |
| KCl | 0.04 | 0.03 | 0.05 | 0.14 |
| DL-methionine | 0.20 | 0.20 | 0.17 | 0.17 |
| L-threonine | 0.05 | 0.07 | 0.03 | 0.04 |
| Premix3) | 0.10 | 0.10 | 0.10 | 0.10 |
1)All diets were supplemented with four levels of either NaHCO3 (0.33, 0.66, 0.99, or 1.32%) or Na2SO4 (0.28, 0.56, 0.84, or 1.12%) to make final Na concentrations of 0.17, 0.26, 0.35, or 0.44%, respectively. The basal diet contained 0.08% Na.
2)Residual bakery oil.
3)Provides per kg of finished diet: vitamin A, 12 mg; vitamin D3, 7 mg; vitamin E, 100 mg; vitamin K3 (50% as MNB), 3 mg; vitamin B1 (98%), 3 mg; vitamin B2 (800,000 mg), 12 mg; vitamin B3 (niacin; 99%), 600 mg; vitamin B6 (98%), 4 mg; vitamin B9 (folic acid; 95%), 2 mg; vitamin B12 (0.10%), 20 mg; biotin (0.10%), 5 mg; Ca-Pentothenate (98%), 12 mg; cholin (70% as choline sodium), 1 g; MnO (60%), 169 mg; FeSO4 (21%), 200 mg; ZnSO4 (36%), 150 mg; CuSO4 (25%), 40 mg; Se (sodium selenite 0.40%), 100 mg; KI (68%), 2 mg; salinomycin, 60 mg; zinc bacitracin (as Albac 10%), 50 mg.