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Applied Poultry Nutrition

Applied Poultry Nutrition. M.E. Persia Iowa State University. What are Nutrients Used For?. Growth (also called production or productive) Increase in size of bones, muscles, internal organs etc… Preferential growth vital organs grow faster, followed by muscle tissue. (Schmidt et al , 2012).

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Applied Poultry Nutrition

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  1. Applied Poultry Nutrition M.E. Persia Iowa State University

  2. What are Nutrients Used For? • Growth (also called production or productive) • Increase in size of bones, muscles, internal organs etc… • Preferential growth vital organs grow faster, followed by muscle tissue (Schmidt et al, 2012)

  3. Discussion Question Why would a younger animal (smaller) be more efficient?

  4. Utilization of Energy Gross Energy Fecal Energy Digestible Energy Urinary Energy Metabolizable Energy Heat Increment Net Energy Net Energy Maintenance Net Energy Production

  5. Poultry Nutrient Requirements

  6. Discussion Question How Does Feed Intake affect nutrient requirements

  7. What Do We Feed Poultry? Grains: Byproduct meals: Oils: Soybean oil, Choice White Grease, Tallow, Poultry fat Vitamins and Minerals: Vitamin and Mineral premix

  8. Diet Formulation

  9. Diet Formulation 50% 40% 6.0% 1.7% 1.8% 0.3% 0.2% 100%

  10. Diet Formulation 50% 40% 6.0% 1.7% 1.8% 0.3% 0.2% 100%

  11. Considerations for Broiler Nutrition • Large feed complexes • Sourcing materials • All diets are pelleted • Increased feed efficiency

  12. Considerations for Broiler Nutrition • Immature birds • 6 to 7 wks to market • 18 wks to maturity • Microflora not set until 10 d • Enzyme production not maximized until 2 wk

  13. Discussion Question Why is lighting important for poultry nutrition?

  14. Considerations for Layer Nutrition • Mature birds • 18 to 110 wks • Can handle more complex diets • Little growth • Reproduction • Laying hens egg production • Very high calcium requirement. Why? • Large egg • 75 calories of ME • 7.5g of crude protein • 2g of calcium

  15. Considerations for Turkey Nutrition • Faster initial growth rate than broilers • Higher amino acids (protein) requirements • Higher P and Ca requirements - why? • Hens 16-18 wks for 30 lbs • Toms 20-22 wks for 45 lbs

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