Effect of hydrocortisone acetate on the maturity of male Labeo gonius (ham.).

The effect of hydrocortisone acetate on the maturity of male Labeo gonius was studied during spawning season. Maturation was inhibited and spermiation arrested. Reduction in the lobes of the testes, volume of the testes and gonadosomatic index were observed. The length of the testes was also reduced. The clumping of spermatozoa occurred in the middle part of the seminiferous lobules. The control group remained unchanged.