Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 28 June 1963:
Vol. 140. no. 3574, pp. 1404 - 1406
DOI: 10.1126/science.140.3574.1404
Prev | Table of Contents | Next

Articles

Cardiovascular Responses of the Chicken to Seasonal and Induced Temperature Changes

James A. Vogel 1 and Paul D. Sturkie 1

1 Physiology Section, Rutgers University, New Brunswick, New Jersey

Blood pressure and cardiac output decline as ambient temperature rises in birds acclimatized to both seasonal- and induced-temperature changes, in contrast to the response usually observed in unacclimatized mammals. The decline in chickens is due to a lowered vascular resistance and blood volume. These circulatory adjustments may be related to the fact that excess heat in birds is dissipated through the respiratory system rather than through the skin.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Local action of exogenous nitric oxide (NO) on the skin blood flow of rock pigeons (Columba livia) is affected by acclimation and skin site.
L. M. Peltonen and A. Pyornila (2004)
J. Exp. Biol. 207, 2611-2619
   Abstract »    Full Text »    PDF »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)