TABLE 1.
| Diet, g/kg | |||
|---|---|---|---|
| Ingredient | SPI | MIX2 | MPI |
| Cornstarch | 240 | 240 | 240 |
| Sucrose | 100 | 100 | 100 |
| Maltodextrin | 75 | 75 | 75 |
| Cellulose | 50 | 50 | 50 |
| MPI | 0 | 108.8 | 217.5 |
| SPI | 200 | 100 | 0 |
| DL-methionine | 3 | 3 | 3 |
| Palm oil, bleached, deodorized | 52.5 | 52.5 | 52.5 |
| Cocoa butter, deodorized | 37.5 | 37.5 | 37.5 |
| Safflower oil, USP | 28.5 | 28.5 | 28.5 |
| Sunflower oil | 27 | 27 | 27 |
| Linseed oil | 4.5 | 4.5 | 4.5 |
| t-Butylhydroquinone | 0.03 | 0.03 | 0.03 |
| Mineral mix3 | 10 | 10 | 10 |
| Potassium citrate | 16.5 | 16.5 | 16.5 |
| Dicalcium phosphate | 13 | 13 | 13 |
| Calcium carbonate | 5.5 | 5.5 | 5.5 |
| Vitamin mix4 | 10 | 10 | 10 |
| Choline bitartrate | 2 | 2 | 2 |
| Protein, % energy | 19 | 19 | 19 |
| Carbohydrate, % energy | 45 | 45 | 45 |
| Fat, % energy | 36 | 36 | 36 |
| Caloric density (kcal/g) | 4.41 | 4.41 | 4.41 |
MIX, a 50/50 mixture of MPI and SPI; MPI, milk protein isolate; SPI, soy protein isolate.
MIX, 50/50 combination of MPI (MPI-85, Idaho Milk Products) and SPI (SUPRO 670, DuPont Nutrition & Health).
Mineral Mix S10026 (Research Diets, Inc) contains (in g/kg of mineral mix): NaCl, 259; MgO, heavy, 41.9; MgSO4⋅7H2O, 257.6; (NH4)6Mo7O24 4H2O, 0.3; KCrS2O8, 1.925; CuCO3, 1.05; C6H5FeO7, 21; CO3MnH2O, 12.25; KIO3, 0.035; NaF, 0.2; Na2SeO3, 0.035; ZnCO3, 5.6; sucrose, 399.105.
Vitamin Mix V13401(Research Diets, Inc) contains (in g/kg of vitamin mix): vitamin A palmitate (500,000 IU/g), 0.8; vitamin D3 (100,000 IU/g) 1.0; menadione sodium bisulfate (62.5% menadione), 0.08; biotin (1%), 2.0; cyanocobalmin (0.1%), 1.0; folic acid, 0.2; nicotinic acid, 3.0; calcium pantothenate, 1.6; pyridoxine-HCl, 0.7; riboflavin, 0.6; thiamin-HCl, 0.6; sucrose 988.42.