Table 2.
Ingredients and nutrient levels of experimental diets (%).
| Items | NRC diet 1 | NRC diet 2 | NRC diet 3 | GB diet 1 | GB diet 2 | GB diet 3 |
|---|---|---|---|---|---|---|
| Ingredients | ||||||
| Corn | 62.80 | 66.00 | 69.50 | 63.00 | 60.00 | 66.00 |
| Soybean meal, 42% CP | 26.00 | 28.00 | 23.00 | 25.00 | 26.50 | 21.00 |
| Fish meal, 62% CP | 7.00 | 2.00 | – | 3.00 | – | – |
| Wheat bran | – | – | 3.00 | 6.34 | 10.75 | 10.50 |
| Soybean oil | 1.95 | 1.50 | 2.10 | – | – | – |
| CaHPO4 | 0.45 | 0.70 | 0.65 | 0.80 | 0.80 | 0.50 |
| CaCO3 | 0.50 | 0.50 | 0.45 | 0.56 | 0.65 | 0.70 |
| Salt | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 |
| Premixa | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Nutrient levels | ||||||
| Digestible energy (MJ/kg) | 14.22 | 14.21 | 14.22 | 13.46 | 13.40 | 13.40 |
| Crude proteinb | 20.06 | 18.01 | 15.11 | 18.03 | 16.05 | 13.46 |
| Calcium | 0.75 | 0.62 | 0.50 | 0.69 | 0.62 | 0.56 |
| Available phosphorus | 0.39 | 0.28 | 0.21 | 0.21 | 0.13 | 0.12 |
a
Premix provided for 1 kg of the complete diet: Cu (as copper sulfate), 10 mg; Fe (as ferrous sulfate), 100 mg; Se (as sodium selenite), 0.30 mg; Zn (as zinc oxide), 100 mg; Mn (as manganese sulfate), 10 mg; vitamin D3, 9.65 μg; vitamin A, 925.8 μg; vitamin E, 15.4 mg; vitamin K3, 2.3 mg; vitamin B2, 3.9 mg; calcium d-pantothenate, 15.4 mg; nicotinic acid, 23 mg; choline, 80 mg; vitamin B12, 0.016 mg.
b
Crude protein was determined value, and other nutrients were calculated values.