Selim , N.; Boulos, N.; Abdel-Khalek, A.; Shabaan, M.; Radwan, N. Determination of Metabolizable Energy of Rich Unsaturated Fatty Acids Dry-Fat in Chicken Diets Using Chemical, Biological and Mathematical Methods. Int. J. Poult. Sci. 2013, 12 (11), 666–675. https://doi.org/10.3923/ijps.2013.666.675.