phenylalanine alone could not efficiently supply tyrosine when dietary aaa were suboptimal as evidenced by significantly greater weight gains in chicks fed 50:50 or 55:45 ( mole : mole ) mixtures of phenylalanine and tyrosine as compared with birds fed the same total amount ( moles ) of aaa supplied solely by phenylalanine .
C0301713
aaa
C0031453
phenylalanine