Involvement of Central β-Adrenergic Circuitry in Food and Water Intake in Chickens

• Datum: 2015
• Hauptverfasser: Baghbanzadeh, A., Hamidiya, Z., Geranmayeh, M.H.
• Format: Artikel
• Sprache: English
• Veröffentlicht: Інститут фізіології ім. О.О. Богомольця НАН України 2015
• Schriftenreihe: Нейрофизиология
• Online Zugang: https://nasplib.isofts.kiev.ua/handle/123456789/148178
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Zitieren: Involvement of Central β-Adrenergic Circuitry in Food and Water Intake in Chickens / A. Baghbanzadeh, Z. Hamidiya, M.H. Geranmayeh // Нейрофизиология. — 2015. — Т. 47, № 2. — С. 151-156. — Бібліогр.: 31 назв. — англ.

We examined the effects of intracerebroventricular (i.c.v.) microinjections of α, β-adrenergic agonist, isoproterenol (ISOP), and of a β₁,₂-adrenoceptor blocker, propranolol (PROP), on food and water intake in broiler cockerels deprived of food and water for 3 h. We found that ISOP, at a 200 nM concentration and not smaller, significantly (P ≤ 0.05) increased food intake but not water intake. PROP microinjected in different doses (20-80 mM) significantly (P ≤ 0.05) decreased food intake. These observation suggest a direct orexigenic role for the β₁ - and β-adrenergic systems in the regulation of food intake in chickens. The significant (P ≤ 0.05) effect of i.c.v. injections of PROP (transient increase in water intake) implies a role of the adrenergic system, possibly via α-adrenoceptors, in the regulation of water intake in broilers, which is food intake-independent.