Table 1.
Composition and nutrient levels of the experimental diets (air-dry basis, %) of yellow-feathered chickens aged 4 to 24 days.
| Item | Basal Diet |
|---|---|
| Ingredients (%) | |
| Corn | 57.60 |
| Soybean meal | 34.20 |
| Soybean oil | 2.10 |
| DL-Methionine | 0.15 |
| Limestone | 1.20 |
| Monocalcium phosphate | 1.90 |
| NaCl | 0.30 |
| Corn cob meal | 1.55 |
| Premix 1 | 1.00 |
| Total kg | 100.00 |
| Nutrient contents 2 | |
| AME (MJ/kg) 3 | 12.14 |
| Crude Protein % | 21.00 |
| Lysine% | 1.16 |
| Methionine % | 0.46 |
| Calcium % | 1.00 |
| Available Phosphorus % | 0.44 |
1 The vitamins and minerals in the diet were supplied exactly as stated by the Chinese Feeding Standard of Chicken (2004). To provide the following per kilogram of diet: vitamin A, 15 000 IU; vitamin D3, 3 300 IU; vitamin E, 10 IU; vitamin K3, 5 mg; thiamin, 1.8 mg; riboflavin, 3.6 mg; pyridoxine, 3.5 mg; cyanocobalamin, 0.01 mg; calcium pantothenic, 10 mg; niacin, 35 mg; folic acid, 0.55 mg; biotin, 0.15 mg; choline chloride, 1000 mg; Fe, 80 mg; Cu, 8 mg; Mn, 80 mg; Zn, 60 mg; I, 0.35 mg; Se, 0.15 mg. The carrier was corn cob meal. 2 Values were calculated from data provided by Feed Database in China (2016). 3 Apparent metabolic energy.