[Concentrations of 17 beta-estradiol, testosterone and progesterone in ovarian cyst fluid and intact ovarian follicles of swine].

: The concentrations of 17 beta-oestradiol, testosterone and progesterone were determined in the fluid of ovarian cysts of 80 sows. The cysts were grouped into the following categories: follicle theca cysts, follicle lutein cysts, lutein cysts, blood cysts and mixed forms. By comparison the concentrations of 17 beta-oestradiol, testosterone and progesterone were determined in the fluid of normal follicles of 100 pigs during the dioestrus, prooestrus and oestrus. The concentrations of progesterone were higher in the fluid of cysts of all groups investigated than in the fluid of normal follicles. The concentrations of 17 beta-oestradiol and testosterone were lower in the cyst fluid than in the follicular fluid. There were not serious differences in the hormone profiles of the cyst fluid between the cysts of the different categories.