Glycogen Content in the Rat Testis from Postnatal to Adult Ages

Abstract

Glycogen content in the rat testis was chemically and histochemically studied during maturation of the gonad. Higher values in the immediate post-natal period, and an abrupt drop in 10- and 15-day-old rats was observed. From 20 days onward, there was a progressive decrease, reaching the lowest values in adultanimals. Histochemically, glycogen was mainly present in the germinal cells, i.e., in gonocytes from 5 to 15 days old, and in primary spermatocytes from 15 to 20 days. A weaker reaction was noticed in spermatogonia and Sertoli cells of adult animals. (Endocrinology85: 607, 1969)