Effect on Body Growth of Small Doses of Testosterone Propionate Administered at Different Seasons

Abstract

Summary and ConclusionsTestosterone propionate (Perandren) was subcutaneously injected through the 4 seasons into 4 respective groups of male albino rats in daily doses of 50 γ from 26 to 80 days. Final body weight in the treated animals was observed to be 188.2±2.3 g; of the controls 172.4±2.4 g. The difference of 15.8±3.3 g in favor of the treated animals (S.R.= 4.8) was “probably significant.” Final body length of the treated group (196±1.2 mm) was 4.8±1.4 mm longer than that of controls (191.2±1.1 mm). This was also “probably significant” (S.R.=3.4). Because of initial weight differences among the controls for the different seasons and because of a significant difference between the initial body weights of one treated group and their respective controls, comparisons were also made of “weight-gains” during the periods of observation. It was found that the treated animals gained 17.8±3.2 g more than their controls. This difference in weight-gain was considered to be statistically “probably significant” ...