Table 2.
Composition of the experimental diets (g/kg, air-dry basis).
| Item | Diets |
||||
|---|---|---|---|---|---|
| Wheat | Cottonseed meal |
Soybean meal |
|||
| Simple | Wheat | Simple | Wheat | ||
| Ingredients | |||||
| Cottonseed meal | – | 400 | 400 | ||
| Soybean meal | – | – | – | 400 | 400 |
| Wheat | 926 | – | 526 | – | 526 |
| Cane sugar (sucrose) | – | 263 | – | 263 | – |
| Starch (wheat starch) | – | 263 | – | 263 | – |
| FeSO4·7H2O | – | 2.0 | 2.0 | – | – |
| K2SO4 | 1.5 | – | – | 1.5 | 1.5 |
| Minerals + vitamins premix1 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
| Dicalcium phosphate | 30.0 | 30.0 | 30.0 | 30.0 | 30.0 |
| Cr2O3 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
| Acid-insoluble ash (Celite) | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
| Tallow | 33.5 | 33.5 | 33.5 | 33.5 | 33.5 |
| Determined analysis | |||||
| Dry matter | 895 | 917 | 897 | 906 | 887 |
| Organic matter | 856 | 871 | 829 | 859 | 819 |
| Crude protein | 120 | 149 | 216 | 185 | 247 |
| Indispensable amino acids | |||||
| Arginine | 5.4 | 13.8 | 16.4 | 12.9 | 14.6 |
| Histidine | 2.7 | 3.4 | 5.5 | 4.7 | 6.5 |
| Isoleucine | 4.7 | 4.5 | 7.1 | 9.0 | 11.3 |
| Leucine | 8.6 | 7.8 | 1.3 | 14.2 | 18.1 |
| Lysine | 6.8 | 6.0 | 7.8 | 11.4 | 12.8 |
| Phenylalanine | 6.1 | 7.6 | 10.4 | 9.7 | 12.2 |
| Threonine | 5.3 | 4.0 | 6.7 | 7.3 | 10.8 |
| Valine | 5.9 | 6.3 | 9.7 | 9.4 | 12.4 |
| Dispensable amino acids | |||||
| Alanine | 4.6 | 5.1 | 7.7 | 8.1 | 10.6 |
| Aspartic acid | 6.6 | 11.3 | 15.6 | 20.3 | 22.9 |
| Glutamic acid | 36.5 | 24.1 | 43.8 | 33.1 | 50.1 |
| Glycine | 5.3 | 5.4 | 8.3 | 7.7 | 10.2 |
| Proline | 3.3 | 4.6 | 12.3 | 9.2 | 16.5 |
| Tyrosine | 4.0 | 4.0 | 5.7 | 6.5 | 8.7 |
| Serine | 6.7 | 5.6 | 9.6 | 9.7 | 13.6 |
| Calculated analysis | |||||
| Digestible energy2, MJ/kg | 14.4 | 14.3 | 14.1 | 14.9 | 14.7 |
1
The minerals and vitamins premix were added to contribute the following for per kilogram of air-dried diet: retinol, 6.4 mg; cholecalciferol, 0.083 mg; α-tocopherol, 22 mg; menadione, 0.60 mg; riboflavin, 3.3 mg; nicotinic acid, 16.5 mg; pantothenic acid, 5.5 mg; pyridoxine, 1.1 mg; biotin, 0.056 mg; choline, 1,100 mg; cyanocobalamin, 0.017 mg; Fe, 88 mg; Zn, 55 mg; Mn, 22 mg; Cu, 6.6 mg; I, 0.22 mg; Se, 0.1 mg.
2
Estimated from ingredients.