1. Campbell, R.G., Johnson, R.J., Interrelationships between dietary protein and energy intake on protein deposition and performance of male broiler chickens. In: Proceedings Proc. Arkansas Nutrition Conference, pp. 44-54. In: Ajinomoto, Feeding broilers different lysine to apparent metabolizable energy ratios during the 40–2000g live weight period. http://www.lysine.com/pdf/poultry/prr12.pdf. 1990.
2. Low protein amino acid-supplemented diets in broiler chickens: effects on performance, carcass characteristic, whole-body composition and efficiencies of nutrient utilization;Aletor;J. Sci. Food Agric.,2000
3. Effect of graded essential amino acids to energy ratios in diets for organic chicken production on fattening performance and carcass yield;Bellof;Arch. Geflügelk.,2005
4. Energy Metabolism in Animals and Man;Blaxter,1989
5. Partitioning of fat and protein in energy retention of growing animals;Boekholt;Z. Ernährungswiss.,1997