Table 1.
Composition of the basal diet (% dry matter).
| Basal Ingredients | |||
|---|---|---|---|
| Fish meal a | 4 | Soybean oil | 5.5 |
| Soybean meal a | 23 | Monocalcium phosphate | 1.8 |
| Rapeseed meal a | 24 | Vitamin and mineral premix b | 1.5 |
| Cottonseed meal a | 9 | Vitamin C (35%) | 0.1 |
| Wheat meal | 20 | Choline chloride (65%) | 0.1 |
| Rice bran | 11 | ||
| Composition of feed (dry matter) | |||
| Protein (%) | 33.15 | ||
| Lipid (%) | 8.78 | ||
| Energy (KJ/g) | 17.89 | ||
Fish meal, Rapeseed meal, Soybean meal, Cottonseed meal, Wheat meal, Rice meal obtained from Wuxi Tongwei feedstuffs Co., Ltd. (Wuxi, China).
Main vitamin and mineral mix of vitamin and mineral premix (IU or mg/ kg of diet): ①The main component of vitamin in premix: Vitamin A, 900 000 IU; Vitamin D, 250 000 IU; Vitamin E, 4500 mg; Vitamin K 3 , 220 mg; VitaminB 1, 320 mg; Vitamin B 2 , 1090 mg; Vitamin B 5 , 2000 mg; Vitamin B 6, 5000 mg; Vitamin B 12 , 116 mg; Pantothenate, 1000 mg; Folic acid,165 mg; Choline, 60 000 mg; Biotin, 50 mg; Niacin acid, 2500 mg. ②The main mineral component in premix: calcium phosphate, 20 g; sodiumchloride, 2.6 g; potassium chloride, 5 g; magnesium sulphate, 2 g; ferrous sulphate, 0.9 g; zinc sulphate, 0.06 g; cupric sulphate, 0.02 g; manganese sulphate, 0.03 g; sodium selenate, 0.02 g; cobalt chloride, 0.05 g; potassium iodide, 0.004g. Zeolite was used as a carrier in premix.