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Table 2 Calculated nutrients composition and metabolic energy (ME*) of the main ingredients and the experimental rations

From: Productive performance and meat quality of commercial Cobb chicken fed diets containing different levels of prickly pear fruits (Opuntia ficus indica) peel

Item

Yellow corn grains

Prickly pear peels

Organic matter

88.57

87.64

Crude protein

7.85

9.60

Free fatty acids, %

0.63

Ash

1.43

12.40

Neutral detergent fiber (NDF), %

9.03

60.12

Acid detergent fiber (ADF), %

2.21

35.50

*ME kcal/kg

3350

2850

Total phenols (gallic acid equivalent), mg/100 g

8304

Flavonoids (quercetin equivalent), mg/100 g

1044

β-mannanase, μmol/g

1.20

Phytase, μmol/min

0.80

Glucose, %

4.40

Sucrose, %

1.88

Fructose, %

3.88

  1. *ME, calculated according to MAAF (1975) using equations being DE (MJ/kg DM) = digestible organic matter (DOM × 19) and ME (MJ/kg DM) = DE−0.82