Document Detail


Heat dissipation biorhythms of laboratory animals.
MedLine Citation:
PMID:  557705     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Body heat dissipation rates were determined in greyhound and beagle dogs, the rabbit, and the rat. Each group of animals was confined in standard cages in a controlled environment room maintained under conditions of 24 degrees C, 50% relative humidity, and fixed ventilation rats. Food and water were available ad libitum. Heat dissipation rates were determined for each group and normalized to an individual animal basis. The ratio of actual heat dissipation to standard metabolic rate, the metabolic heat ratio, was 2.01+/-0.18 for the greyhound, 1.98+/-0.03 for the beagle, 2.66+/-0.20 for the rabbit, and 1.95+/-0.13 for the rat. For each species, the ratio displayed a 24-hour cyclic pattern in which four contiguous maximum values differed significantly from four contiguous minimum values. The ratios of maximum values to minimum values were between 1.54 and 1.75.
Authors:
E L Besch; J E Woods
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Laboratory animal science     Volume:  27     ISSN:  0023-6764     ISO Abbreviation:  Lab. Anim. Sci.     Publication Date:  1977 Feb 
Date Detail:
Created Date:  1977-05-27     Completed Date:  1977-05-27     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  1266503     Medline TA:  Lab Anim Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  54-9     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Animals, Laboratory / physiology*
Body Temperature Regulation*
Circadian Rhythm*
Dogs / physiology
Female
Housing, Animal
Male
Rabbits / physiology
Rats / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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