Record Display for the EPA National Library Catalog

RECORD NUMBER: 149 OF 210

OLS Field Name OLS Field Data
Main Title Relationship between Autonomic and Behavioral Thermoregulation in the Mouse.
Author Gordon, C. J. ;
CORP Author Health Effects Research Lab., Research Triangle Park, NC. Experimental Biology Div.
Year Published 1985
Report Number EPA/600/J-85/130;
Stock Number PB86-102126
Additional Subjects Thermoregulation ; Autonomic response ; Mice ; Laboratory animals ; Behavioral response ; Relationships ; Reprints ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB86-102126 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 6p
Abstract
Preferred ambient temperature (Ta) was measured in nine mice of the BALB/c strain using a temperature gradient. When tested over four consecutive days the mean preferred Ta was 30.9C. In another study using the same animals, metabolic rate, evaporative water loss, whole-body thermal conductance, and colonic temperature were measured at specific Ta's over a range of 18 to 34C. The preferred Ta of 30.9C was associated with (1) the lower critical Ta (i.e., Ta below which metabolic rate increased) (2) a 57% elevation in evaporative water loss when expressed in units of mg water evaporated per ml consumed oxygen, (3) a thermal conductance that was 92% above baseline levels, and (4) a normothermic colonic temperature of between 37.0 to 37.5C. The data indicate that mice will select an environmental temperature associated with a minimal energy expenditure but a higher than minimal rate of evaporation and higher thermal conductance.