Broilers are used from ages 19 to 27 days.

ROSS COBB
Protein % 20-21 19
Energy KG/KCAL 2950 3050
Calcium % 1 0.96
Phosphorus(available) % 0.46 0.48
Sodium % 0.12 0.17
Lysine(digestible) % 1.2 1.1
Methionine(digestible) % 0.5 0.52
Threonine(digestible) % 0.84 0.85
Fiber % 3.5 3.5
Dry matter % 88 88
GR consumption 920 920
Energy to protein ratio 140.4 130.526