Table 1 Composition of the experimental diets fed during the pre-starter (d 1 to 15) and starter (d 16 to 36) phase
Diets | ||
|---|---|---|
Ingredient (g/kg air-dried diet) | Pre-starter | Starter |
Corn | 316.0 | 206.0 |
Wheat | 136.0 | 340.0 |
Barley | 64.0 | 100.0 |
Full-fat extruded soybeans | 204.0 | 90.0 |
Soybean meal (44 % CP) | - | 148.0 |
Soybean meal concentrate (56 % CP) | 120.0 | 25.0 |
Lactose | 86.0 | 36.0 |
Calcium carbonate | 10.8 | 8.2 |
Monocalcium phosphate | 12.7 | 13.0 |
Salt | 3.0 | 3.0 |
DL-Methionine | 2.2 | 1.9 |
L-Lysine-HCl | 5.0 | 5.7 |
L-Threonine | 2.0 | 2.1 |
L-Tryptophan | 0.3 | 0.3 |
Soybean oil | 34.0 | 17.0 |
Trace elements and vitamin premixa | 4.0 | 4.0 |
Calculated analysis (% or as specified) | ||
Crude protein (N × 6.25) | 19.4 | 18.5 |
Digestible energy (MJ/kg) | 14.8 | 13.9 |
Digestible amino acidsb | ||
Lysine | 1.38 | 1.31 |
Methionine | 0.51 | 0.46 |
Methionine + cysteine | 0.84 | 0.77 |
Threonine | 0.9 | 0.85 |
Tryptophan | 0.26 | 0.23 |