Table 1.
Ingredient compositions of experimental diets1.
| Ingredient, % | Control, phase I | Control, phase II |
|---|---|---|
| Corn | 44.41 | 57.27 |
| Dried whey | 15.00 | 10.00 |
| Soybean meal | 18.00 | 22.00 |
| Fish meal | 10.00 | 7.00 |
| Lactose | 6.00 | – |
| Soy protein concentrate | 3.00 | – |
| Soybean oil | 2.00 | 2.00 |
| Limestone | 0.56 | 0.70 |
| L-Lysine·HCl | 0.21 | 0.23 |
| DL-Methionine | 0.08 | 0.05 |
| L-Threonine | 0.04 | 0.05 |
| Salt | 0.40 | 0.40 |
| Vit-mineral, Sow 62 | 0.30 | 0.30 |
| Total | 100.00 | 100.00 |
| Calculated energy and nutrient | ||
| Metabolizable energy, kcal/kg | 3,463 | 3,429 |
| Net energy, kcal/kg | 2,601 | 2,575 |
| Crude protein, % | 22.27 | 20.80 |
| Arg,3 % | 1.23 | 1.15 |
| His,3 % | 0.49 | 0.47 |
| Ile,3 % | 0.83 | 0.76 |
| Leu,3 % | 1.62 | 1.55 |
| Lys,3 % | 1.35 | 1.23 |
| Met,3 % | 0.45 | 0.39 |
| Thr,3% | 0.79 | 0.73 |
| Trp,3 % | 0.23 | 0.21 |
| Val,3 % | 0.91 | 0.84 |
| Met + Cys,3 % | 0.74 | 0.68 |
| Phe + Tye,3 % | 1.45 | 1.38 |
| Ca, % | 0.80 | 0.70 |
| Total P, % | 0.68 | 0.59 |
| Digestible P, % | 0.47 | 0.37 |
| Analyzed nutrient, as-is | ||
| Dry matter, % | 90.70 | 89.90 |
| Crude protein, % | 23.13 | 21.30 |
| ADF, % | 7.26 | 9.35 |
| NDF, % | 2.54 | 3.60 |
| Ca, % | 0.96 | 0.88 |
| P, % | 0.71 | 0.59 |
1In each phase, two additional diets were formulated by adding probiotics or Carbadox to the control diet, respectively. The dose for probiotics was 500 mg/kg, which was equal to 2.56 × 109 CFU Bacillus subtilis/kg diet. The dose for carbadox was 50 mg/kg diet.
2Provided the following quantities of vitamins and micro minerals per kilogram of complete diet: Vitamin A as retinyl acetate, 11,136 IU; vitamin D3 as cholecalciferol, 2,208 IU; vitamin E as DL-alpha tocopheryl acetate, 66 IU; vitamin K as menadione dimethylprimidinol bisulfite, 1.42 mg; thiamin as thiamine mononitrate, 0.24 mg; riboflavin, 6.59 mg; pyridoxine as pyridoxine hydrochloride, 0.24 mg; vitamin B12, 0.03 mg; D-pantothenic acid as D-calcium pantothenate, 23.5 mg; niacin, 44.1 mg; folic acid, 1.59 mg; biotin, 0.44 mg; Cu, 20 mg as copper sulfate and copper chloride; Fe, 126 mg as ferrous sulfate; I, 1.26 mg as ethylenediamine dihydriodide; Mn, 60.2 mg as manganese sulfate; Se, 0.3 mg as sodium selenite and selenium yeast; and Zn, 125.1 mg as zinc sulfate.
3Amino acids were indicated as standardized ileal digestible AA.