The response of castrated male rats to the injection of testicular hormone

Abstract

A METHOD of testing the activity and strength of testicular hormone on castrated rats of the same litter was previously described and conditions were suggested for applying the same method of assay of testicular hormone to rats belonging to different litters [Korenchevsky, 1932, 1]. For this latter purpose it is most important to ascertain (1) how castrated rats belonging to different litters will respond to the same dose of testicular hormone, (2) what conditions must be observed to obtain comparable and accurate results.