Table 1.
Formulation and chemical composition of experimental diets (as-fed basis).
| Starter1 |
Finisher |
|||
|---|---|---|---|---|
| Ingredient, % | Low CP | High CP | Low CP | High CP |
| Corn (7.9%) | 59.83 | 55.84 | 65.66 | 61.59 |
| Soybean meal (45%) | 19.69 | 20.50 | 17.51 | 18.67 |
| Corn gluten meal (61%) | 11.69 | 14.83 | 7.27 | 10.45 |
| Wheat bran | 2.00 | 2.00 | 3.00 | 3.00 |
| Soybean oil | 3.00 | 3.00 | 3.00 | 3.00 |
| Tricalcium phosphate | 1.83 | 1.81 | 1.31 | 1.29 |
| Limestone | 0.93 | 0.94 | 1.12 | 1.13 |
| Salt | 0.46 | 0.46 | 0.41 | 0.41 |
| DL-Methionine (99%) | 0.10 | 0.19 | 0.06 | 0.09 |
| L-Lysine (99%) | 0.27 | 0.23 | 0.23 | 0.19 |
| Vitamin premix2 | 0.10 | 0.10 | 0.10 | 0.10 |
| Mineral premix3 | 0.10 | 0.10 | 0.10 | 0.10 |
| Nutrient composition | ||||
| ME, kcal/kg | 3200 | 3200 | 3200 | 3200 |
| CP, % | 21.00 | 23.00 | 18.00 | 20.00 |
| Ether Extract, % | 5.62 | 5.61 | 5.68 | 5.67 |
| Crude Fibre, % | 2.64 | 2.67 | 2.67 | 2.70 |
| Ash, % | 5.48 | 5.59 | 4.96 | 5.06 |
| Ca, % | 1.00 | 1.00 | 0.90 | 0.90 |
| Available P, % | 0.45 | 0.45 | 0.35 | 0.35 |
| Sodium, % | 0.20 | 0.20 | 0.18 | 0.18 |
| Lysine,% | 1.10 | 1.10 | 1.00 | 1.00 |
| Methionine, % | 0.45 | 0.50 | 0.34 | 0.38 |
| Cysteine, % | 0.37 | 0.41 | 0.33 | 0.36 |
| Threonine, % | 0.75 | 0.82 | 0.66 | 0.72 |
| Tryptophan, % | 0.23 | 0.24 | 0.20 | 0.22 |
| Glycine, % | 0.78 | 0.84 | 0.71 | 0.76 |
| Serine, % | 1.03 | 1.13 | 0.90 | 1.01 |
| Choline, mg/kg | 997 | 1007 | 981 | 992 |
| Folacin, mg/kg | 0.55 | 0.55 | 0.56 | 0.56 |
| Total sulfur amino acid, % | 0.82 | 0.91 | 0.67 | 0.74 |
| Digestible lysine, % | 0.94 | 0.93 | 0.84 | 0.84 |
| Digestible methionine, % | 0.42 | 0.47 | 0.31 | 0.35 |
| Digestible cysteine, % | 0.25 | 0.28 | 0.23 | 0.26 |
| Digestible threonine, % | 0.63 | 0.70 | 0.54 | 0.60 |
| Digestible tryptophan, % | 0.16 | 0.17 | 0.14 | 0.15 |
| Digestible glycine, % | 0.60 | 0.64 | 0.53 | 0.57 |
| Digestible serine, % | 0.95 | 1.05 | 0.80 | 0.90 |
| Digestible sulfur amino acid, % | 0.67 | 0.75 | 0.54 | 0.61 |
1
Stater diets provided during d 1 to 21; finisher diet provided during d 22 to 42.
2
Provided per kg of complete diet: 15,000 IU of vitamin A, 3,750 IU of vitamin D3, 37.5 mg of vitamin E, 2.55 mg of vitamin K3, 3 mg of thiamin, 7.5 mg of riboflavin, 4.5 mg of vitamin B6, 24 ug of vitamin B12, 51 mg of niacin, 1.5 mg of folic acid, 0.2 mg of biotin and 13.5 mg of Ca-Pantothenate.
3
Provided per kg of complete diet: 37.5 mg Zn (as ZnSO4); 37.5 mg Mn (as MnO2); 37.5 mg Fe (as FeSO4·7H2 O); 3.75 mg Cu (as CuSO4·5H2 O); 0.83 mg I (as KI); and 0.23 mg Se (as Na2 SeO3·5H2 O).