Fertilization in the Ewe following Multiple Ovulation and Uterine Insemination

Abstract

Two sites of uterine insemination were compared with natural service for the recovery and fertilization of sheep ova following multiple ovulation induced with an equine anterior pituitary extract (HAP) given after a period of progesterone treatment. Freshly ejaculated semen was placed directly into either the lumen of the body of the uterus or extremities of the uterine horns 24-30 h after HAP treatment.