Effect of cold exposure on profiles of metabolic and endocrine responses and on responses to feeding and @entity369 injection in XXXX .

@entity1568 @entity742 @entity12550 @entity3749 @entity26434 @entity369
The effect of cold exposure (0 degrees C) on profiles of total @entity3749 ( @entity3749 ), energy metabolism, and blood metabolite and hormone concentrations were measured in nine shorn Suffolk rams. Blood metabolite and hormone responses to feeding and to i.v. @entity369 injection (.625 mmol/kg BW) and postprandial changes in @entity3749 were also measured. Heat production was greater (P < .05) during cold exposure than in the thermoneutral environment due to enhanced (P < .05) nonprotein oxidation. Protein oxidation and @entity1568 balance remained unchanged during cold exposure. Plasma glucagon concentrations increased (P < .05) during the initial period of cold exposure. Heat production increased (P < .01) after the initiation of feeding in both environments. Heat production returned gradually to prefeeding values in the thermoneutral environment, but it remained close to the higher levels during cold exposure. Plasma @entity26434 and glucagon concentrations increased (P < .05), and plasma @entity12550 concentrations decreased (P < .10) after the initiation of feeding in both environments. Plasma glucagon responses to feeding (P < .05) and plasma @entity26434 responses to @entity369 injection (P < .01) were reduced by cold exposure. We suggest that 1) enhanced @entity3749 in @entity742 exposed to cold is maintained by enhanced nonprotein oxidation and 2) endocrine responses to stimulants are influenced by cold exposure, even though profiles after cold exposure change little.
