Digestible Valine Requirements of Growing-Finishing Ross 308 Broilers

摘要

Three experiments were conducted to assess the digestible valine (dVal) requirements of growing-finishing Ross 308 broilers. In the first experiment, the limitation of valine in low crude protein diets was evaluated. Based on this first experiment, it can be concluded that Val is a limiting amino acid (AA) in broiler diets and when broilers are fed a CP-reduced diet with a dVal:Lys ratio lower than 80%, growth performance but not carcass composition is significantly affected.