Table 1. Ingredients and chemical composition of experimental diets.
| Ingredients a (g/kg as fed basis) | ||
|---|---|---|
| Diet | MD | CTRL |
| Wheat | 446 | 446 |
| Peas | 231 | 231 |
| Soybean meal | 161 | 161 |
| Sugarbeet molasses | 20 | 20 |
| Corn starch | 88 | 86 |
| Sunflower oil | 10 | 10 |
| l-Lys HCl | 4.35 | 4.35 |
| l-Thr | 2.48 | 2.48 |
| l-Trp | 0.89 | 0.89 |
| dl-Met | 0 | 2.6 |
| l-Ile | 0.78 | 0.78 |
| l-Val | 1.48 | 1.48 |
| l-Leu | 1.18 | 1.18 |
| Salt | 4.5 | 4.5 |
| Calcium carbonate | 11 | 11 |
| Dicalcium phosphate | 12 | 12 |
| Vitamin/mineral premix | 5 | 5 |
| Analyzed composition b (%) | ||
| Crude protein | 18.0 | 18.2 |
| Starch | 39.2 | 38.8 |
| Ash | 5.4 | 5.1 |
| Fat | 2.4 | 2.4 |
| Gross energy, (MJ/kg) | 15.7 | 15.7 |
| Net energyd, (MJ/kg) | 9.95 | 9.96 |
| Lys | 1.31 | 1.28 |
| Met | 0.27 | 0.49 |
| Cys | 0.28 | 0.27 |
| Thr | 0.76 | 0.75 |
| Trp | 0.29 | 0.29 |
| Val | 0.99 | 0.97 |
| Ile | 0.82 | 0.79 |
| Leu | 1.31 | 1.29 |
| Phe | 0.82 | 0.79 |
| Tyr | 0.63 | 0.61 |
| His | 0.50 | 0.42 |
| Arg | 1.08 | 1.08 |
| Ser | 0.77 | 0.76 |
| Gly | 0.80 | 0.71 |
| Ala | 0.66 | 0.67 |
| Asp | 1.76 | 1.68 |
| Glu | 3.30 | 3.28 |
| Pro | 0.93 | 0.91 |
| Calculated composition c , d (%) | ||
| SID Lys | 1.17 | 1.15 |
| SID Met | 0.24 | 0.47 |
| SID TSAA | 0.47 | 0.69 |
| SID Met:Lys | 20 | 41 |
| SID TSAA:Lys | 40 | 60 |
Abbreviation used: TSAA, total sulfur amino acid.
a MD, a diet deficient in methionine; CTRL, a control diet.
b Adjusted for 87.3% of dry matter.
c Values were calculated from Sauvant et al. [19].
d SID, standardized ileal digestible amino acids. The values were obtained from the calculated ileal digestibility values of the ingredients combined with the measured amino acid contents.