Effects of Temperature on Minimal Metabolism of the Hypothyroid and the Normal Rat

Abstract
The oxygen consumption and rectal temperature of thyroidectomized and intact white rats were measured at 23°C, 28°C and 33°C. The oxygen consumption of the thyroidectomized rats was minimal at 33°C while that of the controls was minimal at 28°C. Rectal temperatures were consistent with the hypothesis that the critical temperature for the thyroidectomized rat is significantly higher than that for the intact animal.