Relationship of Hyperthermy to Nitrogen Excretion in Chickens

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Abstract
The effect of hyperthermy in White Leghorn laying hens upon certain nitrogenous constituents of the blood and urine was studied. A rise in body temperature of 5[degree]F was found to be accompanied by a reduction in the percentage of non-protein N as uric acid N in the urine. The blood was altered as follows: Uric acid nitrogen as well as the percentage of the non-protein N as uric acid nitrogen was decreased by hyperthermy. On the other hand, purine N and percentage non-protein N as purine N was greatly increased.