a histochemical study of testicular delta 5-3 beta-hydroxysteroid dehydrogenase ( delta 5-3 beta-ohd ) and a quantitative study of seminiferous tubules in hibernating toad following the administration of hcg revealed stimulation in the activity of the enzyme delta 5-3 beta-ohd and the spermatogenesis by increasing spermiation , meiotic division and the maturation of secondary spermatogonia .
C0036630
seminiferous tubules
C0037866
spermatogonia