Blood and Tissue Distribution of Gamma Glutamyl Transferase in Calves

Abstract

In five male and five female calves, we studied the tissue distribution of gammaglutamyl transferase. The enzyme was mainly in kidney, pancreas, and liver; there was no sex-related difference. The relative hepatic and pancreatic specificity of the enzyme indicated that the measure of its activity in serum could be a test of hepatic or pancreatic damage in the calf. Serum activity measured within 159 samples of apparently healthy calves was 15.3 + 3.7 U/liter, not differing significantly from that of adult cow.