Table 1.
Ingredient and nutrient composition of the basal and nitrogen-free diets (NFD) (as-fed basis).
| Item | Basal | N-free |
|---|---|---|
| Ingredient, % of diet | ||
| Corn, grain | 54.56 | − |
| Soybean meal, 48% CP | 37.55 | − |
| Corn starch | − | 19.00 |
| Dextrose | − | 64.00 |
| Solka-floc | − | 5.00 |
| Soybean oil | 2.56 | 5.00 |
| Limestone | 1.52 | 1.30 |
| Dicalcium phosphate | 1.52 | 1.90 |
| Sodium choride | 0.44 | − |
| DL-methionine | 0.36 | − |
| L-Lysine·HCl | 0.50 | − |
| Threonine | 0.06 | − |
| Vitamin premix1 | 0.35 | 0.35 |
| Mineral premix2 | 0.08 | 0.08 |
| Sodium bicarbonate | − | 1.86 |
| Choline chloride | − | 0.25 |
| Magnesium oxide | − | 0.20 |
| Potassium chloride | − | 0.29 |
| Potassium carbonate | − | 0.27 |
| Chromium oxide | 0.50 | 0.50 |
| Calculated composition | ||
| ME, kcal/kg | 3027 | 3230 |
| CP, % | 22.77 | − |
| Crude fat, % | 4.72 | 4.75 |
| Ca, % | 0.95 | 0.81 |
| Available P, % | 0.48 | 0.41 |
| Lys, % | 1.66 | − |
| Thr, % | 0.97 | − |
| Met, % | 0.72 | − |
| TSAA, % | 1.08 | − |
| Electrolyte balance, mEq/kg of diet | 219 | 219 |
1
Supplied per kilogram of diet: vitamin A, 5,511 IU; vitamin D3, 1,102 ICU; vitamin E, 11.02 IU; vitamin B12, 0.01 mg; biotin, 0.11 mg; menadione, 1.1 mg; thiamine, 2.21 mg; riboflavin, 4.41 mg; d-pantothenic acid, 11.02 mg; vitamin B6, 2.21 mg; niacin, 44.09 mg; folic acid, 0.55 mg; choline, 191.36 mg.
2
Supplied per kilogram of diet: Mn, 107.2 mg; Zn, 85.6 mg; Mg, 21.44 mg; Fe, 21.04; Cu, 3.2 mg; I, 0.8 mg; Se, 0.32 mg.