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Table 1 Ingredients and composition of the experimental diet (as fed basis) fed to laying hens

From: Laying performance, digestibility and plasma hormones in laying hens exposed to chronic heat stress as affected by betaine, vitamin C, and/or vitamin E supplementation

Ingredients and composition

g/kg

Yellow corn, ground

663.3

Soybean meal 48 % CP

242.0

Limestone

75.0

Dicalcium phosphate

13.2

Vit + Min Premixa

2.5

NaCl

2.5

DL-methionine

1.5

Calculated and determined composition

 ME, MJ/kgb

11.62

 Dry matter, g/kgc

907.3

 CP, g/kgc

170.6

 Ether extract, g/kgc

24.5

 Crude fibre, g/kgc

39.6

 Methionine, g/kgb

3.91

 Ash, g/kgc

63.7

 Nitrogen free extract, g/kgc

609.8

 Meth. + Cys. (TSAA, g/kg)b

6.7

 Lysine, g/kgb

8

 Calcium, g/kgb

31

 Available P, g/kgb

3.74

  1. aVit + Min mixture provides per kilogram of diet: vitamin A, 12,000 IU; vitamin E, 10 IU; menadione, 3 mg; Vit. D3, 2200 ICU; riboflavin, 10 mg; Ca pantothenate, 10 mg; nicotinic acid, 20 mg; choline chloride, 500 mg; vitamin B12, 10 g; vitamin B6, 1.5 mg; vitamin B1, 2.2 mg; folic acid, 1 mg; biotin, 50 g. Trace mineral (milligrams per kilogram of diet): Mn, 55; Zn, 50; Fe, 30; Cu, 10; Se, 0.10; Anti oxidant, 3 mg
  2. bCalculated from NRC (1994) table values
  3. cDeterimed values based on AOAC (2004)