Superovulated Ovaries (eCG).

Superovulated Ovaries (eCG).
Excellent response to 3000 IU of eCG (formerly PMSG). The left ovary shows only one small anovulatory follicle. Heifer tract. eCG: equine Chorionic Gonadotropin PMSG: Pregnant Mare Serum Gonadotropin

Drost M (1976)