Fertilization and Survival of Fertilized Eggs in the Ewe Following Surgical Insemination at Various Times After the Onset of Oestrus

Abstract

Two experiments are described in which fertilization and development of fertilized eggs to lambs were studied following cervical and surgical (tubal and uterine) insemination of ewes at various times after the onset of oestrus. The experiments also provided information on the time of ovulation and on the fertilizable life of the ovine egg.