Table 1.
Composition and nutrient levels in the basal diet for the ducks.
| Composition of diet |
Content (%) |
Nutrient levels |
Level |
||
|---|---|---|---|---|---|
| Ingredient | 0∼3wk | After 3 wk | Index | 0∼3 wk | After 3 wk |
| Soybean meal | 18.00 | 20.00 | Ca (%) | 0.80 | 2.77 |
| Corn | 59.99 | 44.00 | DE (MJ·kg−1) | 11.93 | 11.44 |
| Wheat bran | 11.00 | 14.40 | Crude protein (%) | 18.03 | 17.63 |
| Rice bran | — | 11.0 | Met+Cys (%) | 0.60 | 0.65 |
| Cottonseed meal | 5.00 | — | Total phosphorous (%) | 0.67 | 0.70 |
| Bone meal | 1.58 | 5.80 | Lys (%) | 0.85 | 0.97 |
| Fish meal | 3.00 | 2.00 | Available phosphorus (%) | 0.35 | 0.40 |
| Salt | 0.37 | 0.30 | |||
| Met | 0.06 | 0.10 | |||
| CaHPO4 | — | 1.40 | |||
| Premix* | 1.00 | 1.00 | |||
| Total | 100.00 | 100.00 | |||
*
Per kilogram of premix contained the followings: VD3 400 IU, VA 2,500 IU, VB 1,215.0 μg, VK3 0.5 mg, VE 10.0 mg, Riboflavin 4.0 mg, Thiamine 4.0 mg, Nicotinic acid 55.0 mg, Pantothenic acid 11.0 mg, Biotin 0.08 mg, Pyridoxine 2.5 mg, Folic acid 1.0 mg, Choline 1,300.0 mg, Se 0.2 mg, Fe 80.0 mg, Cu 10.0 mg, Zn 60.0 mg, Mn 50.0 mg.