Phenylalanine and tyrosine requirements of immature beagle dogs.

摘要: Experiments were conducted with immature Beagle dogs to determine the dietary requirement for phenylalanine. With purified L-amino acid diets this aromatic amino optimize growth, feed efficiency and nitrogen balance was found be 0.8%. Dietary limitations in quantity of phenylalanine resulted an increase plasma urinary urea. Breakpoint analysis concentrations also indicated a The present data indicate that can met by supplying approximately 195 mg per 100 kcal metabolizable energy or 518 kilogram body weight day. In separate study, tyrosine meet 46% dog. Consumption containing presence optimal did not further stimulate balance.