1. Introduction
Broiler chicks have been shown to benefit from immediate access
to feed. Although the focus of nutrition has been on provision
of energy, chicks would benefit from a more balanced nutrient
profile, particularly protein and amino acids. To cope with market
demand for protein (meat), modern broilers are reaching market
age sooner each year (Kleyn and Chrystal, 2008). Therefore advances
in nutrition will be fundamental to securing this rapid
growth achievement and maintaining sustainable broiler production.
Accordingly, the common focus of nutrition, to simply supply
nutrients for maintenance and growth has become obsolete.