Poultry research advances have pooled knowledge of biochemical and physiological mechanisms geared towards improving the efficiency of feed utilization and increasing desired carcass attributes in response to changing dietary constituents (Kidd, 2009). Modern broilers require 9.4 g of feed to produce 1 g of breast meat, whereas broilers that were unselected in 1957 required 28 g of feed for an equivalent response (Leeson, 2008). For decades, the use of in-feed antibiotic growth promoters (AGP) at sub-therapeutic levels has been effective in enhancing growth performance of broiler chickens. However, following the AGP ban within the European Union in 2006, consumer perceptions have more weight on the quality and safety of animal products making feed manufacturing exponentially complex in terms of accountability and traceability of feeds and their component ingredients (Leeson, 2008).