Week 10

Poultry

Broilers

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Objectives

• Produce lean meat as cheaply as possible
• Maximum growth rate
• Maximum economic efficiency
• Maximum yield

Trends

Feeding Broilers

• Most broilers -unlimited access
• Maximizing nutrient intake not always efficient
• Decrease growth early in life
• Restrict feed intake slightly
• Birds respond to increasing rate of gain later in life
• Increased efficiency during later stage of production
• Difference in market weight:
  • Cornish
    • 1 - 1.1 kg live weight at 28 d age
  • Broiler
    • 1.7 to 2.5 kg live weight at 39-42 d age
  • Roaster
    • 3- 4 kg, 50-60 d age
• Diets
  • Starter
    • Crumbled pellet
    • 0-3 weeks (20-23% CP, 3050 ME kcal/kg)
    • Very rapid growth
    • 45 to 700g in 3 weeks-much of it is protein
  • Grower
    • Pellet or crumble
    • 3-6 weeks of age
    • 20% CP, 3150-3200 ME
  • Broiler Finisher
    • 18% CP, 3200 kcal/kg
    • Pellet or crumble
    • Last 6 d before slaughter, decrease nutrient density
    • Less protein deposited
  • Roaster
    • 42 day to slaughter
    • 16% CP
    • 3200 kcal/kg