title: Quantitative requirement of the hatchling green sea turtle, Chelonia mydas, for valine, leucine, isoleucine and phenylalanine.
abstract: Hatchling green sea turtles were fed purified diets containing 36% crude protein (N X 6.25) to determine the quantitative requirements for valine, leucine, isoleucine and phenylalanine. Expressed as percentage of total dry diet, the hatchling green sea turtle requires 1.3% valine, 1.6% leucine, 1.0% isoleucine and 1.0% phenylalanine (in the presence of 0.5% tyrosine). Within the range of isoleucine-leucine levels investigated, there was no apparent interrelationship between the quantitative requirements of these two amino acids. Growth rate was decreased at a high level of phenylalanine, 3.0% of the dry diet.
mesh_terms: D000818:Animals; D004032:Diet; D004044:Dietary Proteins; D007532:Isoleucine; D007930:Leucine; D009751:Nutritional Requirements; D010649:Phenylalanine; D013045:Species Specificity; D014426:Turtles / Q000254:growth & development / Q000378:metabolism*; D014633:Valine
chemical_list: D004044:Dietary Proteins; D007532:Isoleucine; D010649:Phenylalanine; D007930:Leucine; D014633:Valine