Oral administration of L-citrulline changes the concentrations of plasma hormones and biochemical profile in heat-exposed broilers

Vishwajit S. Chowdhury, Yoshimitsu Ouchi, Guofeng Han, Hatem M. Eltahan, Shogo Haraguchi, Takuro Miyazaki, Jun Ichi Shiraishi, Toshihisa Sugino, Takashi Bungo

Research output: Contribution to journalArticlepeer-review

Abstract

We examined the effects of oral administration of L-citrulline (L-Cit) on plasma metabolic hormones and biochemical profile in broilers. Food intake, water intake, and body temperature were also analyzed. After dual oral administration (20 mmol/head/administration) of L-Cit, broilers were exposed to a high ambient temperature (HT; 30 ± 1°C) chamber for 120 min. Oral administration of L-Cit reduced (p < .001) rectal temperature in broilers. Food intake was increased (p < .05) by heat stress, but it was reduced (p < .05) by L-Cit. Plasma levels of 3,5,3'-triiodothyronine, which initially increased (p < .0001) due to heat stress, were reduced (p < .01) by oral administration of L-Cit. Plasma insulin levels were increased by heat exposure (p < .01) and oral L-Cit (p < .05). Heat stress caused a decline (p < .05) in plasma thyroxine. Plasma lactic acid (p < .05) and non-esterified fatty acids (p < .01) were increased in L-Cit-treated heat-exposed broilers. In conclusion, our results suggest that oral L-Cit can modulate plasma concentrations of major metabolic hormones and reduces food intake in broilers.

Original languageEnglish
Pages (from-to)e13578
JournalAnimal science journal = Nihon chikusan Gakkaiho
Volume92
Issue number1
DOIs
Publication statusPublished - Dec 1 2021

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences(all)

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