Table 2.
Composition and chemical characteristics of grower (G0; 10 to 20 d) and finisher diets of Exp2 (%, as-fed basis).1
| G0 | F1- | F1+ | F2- | F2+ | F3- | F3+ | F4- | F4+ | |
|---|---|---|---|---|---|---|---|---|---|
| Ingredients | |||||||||
| Corn | 60.1 | 55.6 | 54.6 | 53.3 | 52.3 | 54.3 | 53.3 | 55.3 | 54.3 |
| Soybean meal | 24.1 | 19.5 | 19.5 | 21.6 | 21.6 | 18.7 | 18.7 | 12.7 | 12.7 |
| Rapeseed meal | 12.0 | 15.0 | 15.0 | ||||||
| Dehulled rapeseed meal | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | |||
| Defatted rapeseed hull | 4.5 | 4.5 | 9.0 | 9.0 | |||||
| Cornstarch | 4.5 | 4.5 | 9.0 | 9.0 | 4.5 | 4.5 | |||
| Soybean seed | 2.0 | 2.0 | 2.0 | 2.0 | 3.0 | 3.0 | 8.0 | 8.0 | |
| Soybean oil | 1.20 | 1.70 | 1.70 | 1.70 | 1.70 | 2.70 | 2.70 | 2.80 | 2.80 |
| Salt | 0.30 | 0.31 | 0.31 | 0.30 | 0.30 | 0.31 | 0.31 | 0.30 | 0.30 |
| Dicalcium phosphate | 1.11 | ||||||||
| Monocalcium phosphate | 0.14 | 0.14 | 0.25 | 0.25 | 0.27 | 0.27 | 0.27 | 0.27 | |
| Sodium bicarbonate | 0.07 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.08 | 0.08 |
| Calcium carbonate | 0.39 | 0.26 | 0.26 | 0.30 | 0.30 | 0.16 | 0.16 | 0.05 | 0.05 |
| DL-methionine | 0.19 | 0.15 | 0.15 | 0.16 | 0.16 | 0.17 | 0.17 | 0.17 | 0.17 |
| L-lysine | 0.13 | 0.11 | 0.11 | 0.10 | 0.10 | 0.13 | 0.13 | 0.16 | 0.16 |
| Phytase2 | 1.00 | 1.00 | 1.00 | 1.00 | |||||
| Nutritional characteristics, % | |||||||||
| Dry matter3 | 89.9 | 89.8 | 89.7 | 89.8 | 89.4 | 90.0 | 89.6 | 89.8 | 89.3 |
| Phytase, FTU/kg3 | <100 (0) | <100 (0) | 820 (750) | <100 (0) | 780 (750) | <100 (0) | 710 (750) | <100 (0) | 1010 (750) |
| Protein3 | 20.1 (20.0) | 19.2 (19.0) | 19.1 (19.0) | 18.7 (19.0) | 18.8 (19.0) | 18.8 (19.0) | 19.4 (19.0) | 18.9 (19.0) | 19.0 (19.0) |
| Fat3 | 4.4 (3.9) | 5.6 (5.1) | 5.3 (5.1) | 4.8 (4.5) | 4.6 (4.5) | 6.3 (5.7) | 5.6 (5.7) | 6.7 (6.7) | 7.0 (6.7) |
| Total phosphorus3 | 0.80 (0.65) | 0.57 (0.49) | 0.54 (0.49) | 0.56 (0.52) | 0.55 (0.52) | 0.52 (0.50) | 0.56 (0.50) | 0.57 (0.49) | 0.53 (0.49) |
| NPP4,5 | 0.33 | 0.22 | 0.22 | 0.22 | 0.22 | 0.22 | 0.22 | 0.22 | 0.22 |
| Calcium3 | 0.87 (0.74) | 0.51 (0.42) | 0.49 (0.42) | 0.50 (0.42) | 0.49 (0.42) | 0.50 (0.42) | 0.49 (0.42) | 0.49 (0.42) | 0.49 (0.42) |
| Ca: NPP4 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 |
| Crude fiber3 | 3.8 (4.1) | 4.1 (4.8) | 4.4 (4.8) | 2.9 (3.5) | 2.8 (3.5) | 4.0 (4.5) | 3.9 (4.5) | 4.5 (5.6) | 5.6 (5.6) |
| NDF3,5 | 11.7 (12.5) | 13.3 (13.2) | 13.4 (13.2) | 10.7 (10.6) | 10.7 (10.6) | 12.2 (13.1) | 12.0 (13.1) | 13.8 (15.5) | 14.0 (15.5) |
| ADF3,5 | 6.6 (6.1) | 7.5 (6.7) | 6.6 (6.7) | 4.6 (5.3) | 4.8 (5.3) | 6.2 (7.3) | 6.2 (7.3) | 7.6 (9.2) | 7.6 (9.2) |
| ADL3,5 | 1.4 (1.5) | 1.8 (1.9) | 1.4 (1.9) | 0.9 (1.2) | 0.9 (1.2) | 1.8 (2.4) | 1.8 (2.4) | 2.5 (3.6) | 2.7 (3.6) |
| Metabolized energy, kcal/kg4 | 2960 | 3069 | 3069 | 3076 | 3076 | 3067 | 3067 | 3044 | 3044 |
1Premix (0.40%) was added to all diets: 10,000 IU vitamin A (retinol); 4,000 UI vitamin D3 (cholecalciferol); 80 mg vitamin E (tocopherol); 4 mg vitamin K3 (menadione); 4 mg vitamin B1 (thiamine); 6 mg vitamin B2 (riboflavin); 80 mg vitamin B3 (PP, niacin); 20 mg vitamin B5 (Ca panthotenate); 6 mg vitamin B6 (pyridoxine); 0.2 mg vitamin B8 (biotin, H); 2 mg vitamin B9 (folic acid); 0.02 mg vitamin B12 (cyanocobalamin); 440 mg choline; 40 mg Fe (FeCO3); 16 mg Cu (CuSO4); 64 mg Mn (MnO); 72 mg Zn (ZnSO4); 0.4 mg Co (CoCO3); 2 mg I (Ca(IO3)2); 0.2 mg Se (Na2SeO3); 2.29 g Ca (CaCO3).
TiO2 (0.30%) was added to experimental diets, except for G0.
2Phytase from Natuphos (10,000 G) was added to the diet in a corn meal mixture (0.75% microbial phytase + 99.25% corn).
3Analysis values, according to Materials and Methods section. Calculated values are in brackets.
4Calculated values.
5NPP = non-hytate phosphorus; NDF = neutral detergent fiber; ADF = acid detergent fiber; ADL = acid detergent lignin.