Carcass Composition of Broilers Fed Diets Based on Total and Digestible Amino Acid Formulation

Abstract

The objective of this research was to determine the difference in carcass composition between male and female birds and between birds of two different genotypes fed four diets differed in formulation, i.e: 1) based on total amino acids, 2) based on digestible amino acids (published book values), 3) based on digestible amino acids values determined, 4) based on digestible amino acids formulated commercially. This study demonstrated that sex and strain of broilers affect the requirement of amino acids. Male broilers had higher dietary amino acid requirements than females. With regard to genotype, the more rapid the growth of the birds, the higher requirement of amino acids. Birds given diets based on digestible amino acid formulation had a higher proportion of body protein and a low proportion of body fat (P<0.05) than birds fed diets based on total amino acid formulation.