Food Intake After Hatching Inhibits the Growth Hormone Induced Stimulation of the Thyroxine to Triiodothyronine Conversion in the Chicken Academic Article uri icon


  • The effect of a single injection of 10 micrograms chicken GH on circulating thyroid hormones as well as in vitro liver 5'-monodeiodination (5'-D) activity was studied in posthatch chicks submitted to different feeding conditions. One group was normally fed after hatching, a second group was only fed after three days and a third group was food deprived after 2 days of feeding. Combination of all results indicates that the start of food intake abolishes the stimulatory effect of a GH injection on circulating T3 and liver 5'-D activity. Food deprivation after a period of food intake restores the GH effect on plasma T3 but not on liver 5'-D.

author list (cited authors)

  • Darras, V. M., Vanderpooten, A., Huybrechts, L. M., Berghman, L. R., Dewil, E., Decuypere, E., & Kühn, E. R.

citation count

  • 22

publication date

  • October 1991