Testosterone Production by Ovarian Follicles of the Domestic Cat (Felis catus)

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Abstract
In order to determine whether the ovarian follicles of the domestic cat [Felis catus] which normally ovulates following copulation were similar to those of the rabbit steroidogenically, the following experiments were carried out. Follicles were dissected out of ovaries from 9 estrous cats throughout the year and incubated in medium alone or with luteinizing hormone (LH) or human chorionic gonadotropin (HCG). Media were removed every 15 min and stored frozen until analyzed for testosterone using established radioimmunoassay procedures. Although LH and HCG slightly increased testosterone production, the amounts produced were much less than that produced by rabbit follicles under identical conditions. However, when follicles were incubated for a total of 8 h without removal of media, marked changes in testosterone and estradiol production occurred. The ovarian follicles of the estrous cat are probably steroidogenically active.

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