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Ontogeny of cholinergic and adrenergic cardiovascular regulation in the domestic chicken (Gallus gallus)
 

Summary: Ontogeny of cholinergic and adrenergic cardiovascular
regulation in the domestic chicken (Gallus gallus)
DANE CROSSLEY II1
AND JORDI ALTIMIRAS2
1
Department of Biological Sciences, University of North Texas,
Denton, Texas 76201; and 2
Danish Center for Respiratory Adaptation,
Department of Zoophysiology, University of Aarhus, Aarhus 8000, Denmark
Received 27 December 1999; accepted in final form 8 May 2000
Crossley II, Dane, and Jordi Altimiras. Ontogeny of
cholinergic and adrenergic cardiovascular regulation in the domes-
tic chicken (Gallus gallus). Am J Physiol Regulatory Integrative
Comp Physiol 279: R1091­R1098, 2000.--Adrenergic and cholin-
ergic tone on the cardiovascular system of embryonic chick-
ens was determined during days 12, 15, 19, 20, and 21 of
development. Administration of the muscarinic antagonist
atropine (1 mg/kg) resulted in no significant change in heart
rate or arterial pressure at any developmental age. In addi-
tion, the general cardiovascular depressive effects of hypoxia

  

Source: Altimiras, Jordi - Department of Biology, Linköpings Universitet

 

Collections: Environmental Sciences and Ecology