Supplemental dietary l-tryptophan effects on growth, meat quality, and brain catecholamine and indoleamine concentrations in turkeys

D. M. Denbow, F. C. Hobbs, R. M. Hulet, L. M. Potter

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

1. An experiment was conducted to investigate the effects of feeding supplemental tryptophan during the two weeks before market on growth, mortality during transportation, meal quality and brain neurotransmitter concentrations in male turkeys. 2. Brain serotonin, 5-hydroxyindoleacetic acid and norepinephrine concentrations were increased dose-dependently with 1.0, 2.0 and 3.0 g/kg supplemental dietary tryptophan. 3. Supplemental dietary tryptophan had no effect on body weight gain, food intake, food efficiency or mortality. 4. Carcase and individual thigh weights were significantly heavier in those birds fed 1.0 g/kg supplemental tryptophan.

Original languageEnglish (US)
Pages (from-to)715-724
Number of pages10
JournalBritish Poultry Science
Volume34
Issue number4
DOIs
StatePublished - Jan 1 1993

All Science Journal Classification (ASJC) codes

  • Food Science
  • Animal Science and Zoology

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