Poultry Nutrition

Question 1

Objectives of Poultry Nutrition

Answer 1

1. Provide bird with nutrients/feed that will allow it to achieve its performance potential that genetics x environment allow at lowest cost/kg meat/eggs/or other profit objectives
2. Meet consumer expectations on how we feed birds to deliver a product to the: no GMO/organic/AGP free/slow growing broilers/no antibiotics ever campaign in US

Question 2

Key Nutritional Principles in Poultry

Answer 2

Energy - how do we measure, digestibility, energy systems
Protein and Amino Acids - esseential vs. non-essential, ideal AA ratio
Ca and P
Trace minerals and vitamins

Question 3

Energy Systems in Poultry

Answer 3

Accounts for energy absorbed but not the inefficiency of use for production

29% of ME is lost as heat

Question 4

Amino Acids Important in Broiler Nutrition

Answer 4

Conditionally essential AA - Met Lys Thr Trp Arg Val Ile Leu His Phe
Condi essential & set as boundary in diets - Gly+Ser
Non essential synthesized from essential AA - Tyr (Phe) Cys (Met)

Question 5

Limiting Amino Acids for Poultry

Answer 5

Grain | Order of Limitation (1st 2nd 3rd)
Corn - Met, Lys, Trp
Sorghum - Met, Lys, Thr

Met always 1st limiting, Lys 2nd, 3rd and 4th will vary depending on feed ingredients
In most broiler diets, Thr will be 3rd limiting AA