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Table 1 Composition and nutrient contents of the basal diet for Pekin ducks from 15 to 42 days of age (as-fed basis)

From: Dietary methionine deficiency stunts growth and increases fat deposition via suppression of fatty acids transportation and hepatic catabolism in Pekin ducks

Ingredients, % Content Nutrient levels Content
Corn 68.40 Metabolizable energy2, kcal/kg 2973
Soybean meal 25.60 Crude protein3, % 16.79
Soybean oil 1.80 Methionine3, % 0.28
Dicalcium phosphate 1.75 Methionine + cystine3, % 0.56
Limestone 1.25 Lysine3, % 0.91
Salt 0.30 Threonine3, % 0.65
L-lysine•HCl 0.10 Tryptophan3, % 0.18
Rice hull + DL-methionine 0.30 Calcium2, % 0.90
Premix1 0.50 Total phosphorus2, % 0.64
Total 100.00 Non-phytate phosphorus2, % 0.38
  1. 1 Supplied per kilogram of total diet: Cu (CuSO4·5H2O), 8 mg; Fe (FeSO4·7H2O), 60 mg; Zn (ZnO), 60 mg; Mn (MnSO4·H2O), 100 mg; Se (Na2SeO3), 0.3 mg; I (KI), 0.4 mg; choline chloride, 1000 mg; vitamin A (retinyl acetate), 4000 IU; vitamin D3 (cholcalciferol), 2000 IU; vitamin E (dl-α-tocopheryl acetate), 20 IU; vitamin K3 (menadione sodium bisulfate), 2 mg; thiamin (thiamin mononitrate), 2 mg; riboflavin, 10 mg; pyridoxine hydrochloride, 4 mg; cobalamin, 0.02 mg; calcium-D-pantothenate, 20 mg; nicotinic acid, 50 mg; folic acid, 1 mg; and biotin, 0.15 mg.
  2. 2 Calculated values
  3. 3 Analyzed values