Table 1.
Composition and nutrient specifications of control diet (as-fed basis, g/kg).
| Feed ingredient | Content | Specification | Content |
|---|---|---|---|
| Wheat | 495 | Metabolizable energy, MJ/kg | 12.34 |
| Soybean meal | 315 | Crude protein | 236.9 |
| Canola meal | 75.0 | Calcium | 10.50 |
| Soy oil | 50.0 | Total phosphorus | 6.46 |
| L-Lysine HCl | 3.21 | Phytate phosphorus | 2.49 |
| L-Threonine | 1.61 | Non-phytate phosphorus | 3.97 |
| L-Valine | 0.90 | Sodium | 1.80 |
| L-Arginine | 0.74 | Potassium | 10.03 |
| L-Isoleucine | 0.39 | Chloride | 2.50 |
| Sodium chloride | 2.17 | DEB, mEq/kg | 264 |
| Sodium bicarbonate | 1.66 | Crude fat | 73.5 |
| Limestone | 11.14 | Crude fibre | 26.9 |
| Dicalcium phosphate | 15.38 | Digestible lysine | 13.0 |
| Digestible TSAA | 6.37 | ||
| Xylanase | 0.05 | Digestible methionine | 3.07 |
| Phytase | 0.05 | Digestible threonine | 8.58 |
| Choline chloride 60% | 1.00 | Digestible tryptophan | 2.68 |
| Celite | 20.0 | Digestible isoleucine | 8.84 |
| Sand1 | 4.14 | Digestible leucine | 14.78 |
| Vitamin-mineral premix2 | 3.00 | Digestible valine | 10.27 |
DEB = dietary electrolyte balance; TSAA = total sulphur amino acid.
L-Methionine was incorporated into the control diet at the expense of sand at appropriate inclusion rates to generate the balance of dietary treatments.
The vitamin-mineral premix supplied per tonne of feed: [MIU] retinol 12, cholecalciferol 5, [g] tocopherol 50, menadione 3, thiamine 3, riboflavin 9, pyridoxine 5, cobalamin 0.025, niacin 50, pantothenate 18, folate 2, biotin 0.2, copper 20, iron 40, manganese 110, cobalt 0.25, iodine 1, molybdenum 2, zinc 90, selenium 0.3.