Table 2 Composition of experimental basal diet in Exp.2 (% as-fed basis)
Items | Content, % | |
|---|---|---|
|  | 1–21 d | 22–35 d |
Ingredients | Â | Â |
 Corn | 37.35 | 47.79 |
 Extruded corn | 18.00 | 15.00 |
 Soybean meal | 13.00 | 18.50 |
 Extruded soybean | 10.00 | 6.00 |
 Fish meal | 4.00 | 3.00 |
 Spray-dried plasma protein | 3.00 | 0.00 |
 Whey powder | 10.00 | 5.00 |
 Soy oil | 1.03 | 1.08 |
 CaHPO4 | 0.78 | 0.66 |
 Limestone | 0.95 | 0.90 |
 NaCl | 0.30 | 0.30 |
 L-Lysine HCl | 0.32 | 0.39 |
 DL-Methionine | 0.16 | 0.20 |
 L-Threonine | 0.11 | 0.16 |
 L-Tryptophan | 0.00 | 0.02 |
 Vitamin-mineral premixa | 1.00 | 0.00 |
 Vitamin-mineral premixb | 0.00 | 1.00 |
 Total | 100 | 100 |
Nutrient composition | ||
 DE, kcal/kg | 3542 | 3490 |
 CP, % | 20.56 | 18.88 |
 Ca, % | 0.8 | 0.7 |
 Digestible P, % | 0.4 | 0.34 |
 Lys, % | 1.35 | 1.24 |
 Met, % | 0.39 | 0.36 |
 Thr, % | 0.79 | 0.73 |
 Trp, % | 0.23 | 0.20 |