Horm Metab Res 1980; 12(7): 304-309
DOI: 10.1055/s-2007-996276

© Georg Thieme Verlag, Stuttgart · New York

Tryptophan Deficiency in Pigs: Changes in Food Intake and Plasma Levels of Glucose, Amino Acids, Insulin and Growth Hormone

G. W. Montgomery, D. S. Flux, R. M. Greenway
  • Massey University, Palmerston North, New Zealand
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Publication History



Publication Date:
14 March 2008 (online)


Pigs were fed alternately a tryptophan deficient diet and the same diet supplemented with tryptophan. The deficient diet depressed food intake, caused changes in the pattern of plasma amino acids, increased plasma glucose levels and increased plasma urea levels per unit food intake.

Plasma levels of insulin and growth hormone gave no indication that either hormone was involved in the suppression of food intake.