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Table 1 Calculated dietary composition and nutrient levels of experimental diets

From: Dietary L-citrulline supplementation modulates nitric oxide synthesis and anti-oxidant status of laying hens during summer season

  Control 0.25% L-Cit 0.50% L-Cit 1.00% L-Cit
Corn (8.5% CP) 54.055 53.805 53.555 53.055
Wheat bran 7.99 7.99 7.99 7.99
Soya bean oil 1.79 1.79 1.79 1.79
Soybean meal (43%) 24.29 24.29 24.29 24.29
Salt 0.35 0.35 0.35 0.35
Limestone 9.6 9.6 9.6 9.6
Dicalcium phosphate 1.44 1.44 1.44 1.44
Choline chloride (50%) 0.09 0.09 0.09 0.09
L- Lysine (99%) 0.1 0.1 0.1 0.1
DL- Methionine (99%) 0.17 0.17 0.17 0.17
Mineral premix a (0.1%) 0.1 0.1 0.1 0.1
Vitamin premix b (0.025%) 0.025 0.025 0.025 0.025
L-citrulline (98%) 0 0.25 0.5 1
Total 100 100 100 100
Nutrients levels
 Total CP, % 16.5 16.85 17.19 17.89
 Non-citrulline CP, % 16.5 16.48 16.46 16.42
 Metabolizable energy, kcal/kg 2700 2700 2700 2700
 Calcium, % 3.5 3.5 3.5 3.5
 Available phosphorus, % 0.404 0.404 0.404 0.404
 Digestible lysine, % 0.78 0.78 0.78 0.78
 Digestible methionine, % 0.4 0.4 0.4 0.4
 Digestible methionine + cysteine, % 0.619 0.619 0.618 0.616
 Digestible threonine, % 0.505 0.504 0.504 0.502
 Digestible tryptophan, % 0.161 0.161 0.161 0.161
  1. a The mineral premix provide the follow quantities per kilogram of diet: iron, 55 mg; selenium, 0.3 mg; copper, 5.5 mg; zinc, 88 mg; I, 1.7 mg; manganese, 88 mg.
  2. b The vitamin premix provide the follow quantities per kilogram of diet: vitamin A, 8800 IU; vitamin D3, 3300 IU; vitamin K, 2.2 mg; vitamin E, 16.5 IU; cholecalciferol, 2800 IU; riboflavin 18.0 mg; niacin, 50 mg; pantothenic acid, 28 mg; biotin, 0.1 mg; folic acid, 0.6 mg