Comparison of the Effects of Octopamine and Noradrenaline on Feeding and Sleep-like Behaviour in Fasted Chicks

Takashi Bungo, Tamae Higaki, Hiroshi Ueda, Mitsuhiro Furuse

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2 Citations (Scopus)


Octopamine, an important neurotransmitter in invertebrates, has noted several similarities with noradrenaline (NA) in mammals. To compare the effect of octopamine and NA in the central nervous system, food intake and categorized postures of fasted chicks were investigated after intracerebroventricular (ICV) injection. We found that ICV injection of NA significantly inhibited food intake of fasted chicks at 30min postinjection, but not octopamine. Although chicks treated NA showed a tendency to be sleep-like behavior, octopamine significantly induced hyperactivity when compared with NA. The results presented here suggest that octopamine may also act on nervous system(s) without noradrenergic system in the brain of chicks.

Original languageEnglish
Pages (from-to)316-322
Number of pages7
JournalJournal of Poultry Science
Issue number4
Publication statusPublished - Jan 1 2002


All Science Journal Classification (ASJC) codes

  • Animal Science and Zoology

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