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Table 1 Composition and nutrient level of the basal diet

From: Ascorbic acid synthesis and transportation capacity in old laying hens and the effects of dietary supplementation with ascorbic acid

Items

Content, g/kg

Nutrient level

 

Corn

596

AME, MJ/kg

10.9

Soybean meal

236

Crude protein, g/kg

155

Wheat

41.3

Lysine, g/kg

7.4

Soybean oil

10.0

Methionine, g/kg

3.3

Calcium carbonate

95.0

Calcium, g/kg

40

Calcium phosphate

14.0

Available phosphorus, g/kg

3.4

DL-methionine

0.8

Total phosphorus, g/kg

5.8

Vitamin premixa

0.2

  

Mineral premixb

2.0

  

Sodium chloride

3.0

  

Choline chloride

1.5

  

Antioxidants

0.2

  
  1. aProvided per kilogram of diet: vitamin A, 10,000 IU; vitamin D3, 2,400 IU; vitamin E, 40 IU; vitamin K3, 2 mg; vitamin B1, 2 mg; vitamin B2, 6.4 mg; vitamin B6, 3 mg; vitamin B12, 0.02 mg; folic acid, 1 mg; niacin, 30 mg; Ca-pantothenate acid, 10 mg
  2. bProvided per kilogram of diet: Cu, 8 mg; Zn, 75 mg; Fe, 80 mg; Mn, 100 mg; Se, 0.15 mg; I, 0.35 mg