1. Agriculture Research Council, 1981. The Nutrient Requirement of Pigs. Commonwealth Agricultural Bureaux, Slough, UK.
2. Pages 1-17 in: Ideal Protein for Swine and Poultry;Baker,1992
3. Baker, D. H., C. M. Parsons, S. Fernandez, S. Aoyagi, and Y. Han, 1993. Digestible amino acid requirements of broiler chickens based upon ideal protein considerations. Pages 22-32 in: Proceedings of the Arkansas Nutrition Conference, Fayetteville, AR.
4. Modification of the level of histidine and sodium bicarbonate in the Illinois crystalline amino acid diet;Baker;Poultry Sci.,1979
5. Ideal amino acid pattern for 10-kilogram pigs;Chung;J. Anim. Sci.,1992