Distribution of blood flow in the ovary of domestic fowl (Gallus domesticus) and changes after prostaglandin F-2 alpha treatment.

Radioactive microspheres (14Ce- and 46Sc-labelled) were used to show that the 5 major pre-ovulatory follicles receive about half of the ovarian blood flow. A progressive increase in the blood flow to these pre-ovulatory follicles during their maturation was observed. Blood flow to the post-ovulatory follicles was low. The administration of PGF-2 alpha was followed by a consistent decrease in blood flow to the major pre-ovulatory follicles.