Here, the efficiency of applying subdoses of equine chorionic gonadotropin (eCG) and prostaglandin F2 alfa (PGF2alfa) at the Bai Hui (BH) acupoint for estrus synchronization in sheep was evaluated. Thirty Santa Inês ewes received intravaginal sponges containing 60 mg medroxyprogesterone acetate for 7 days. The animals were divided into five treatments (T) (n=6): T1 (control), 132.5 ug PGF2 alfa (100% of dose) a...