The effect of human menopausal gonadotropin and equine chorionic gonadotropin on the reproductive performance of treated ewes with short‐term progesterone injections and sponge during the non‐breeding season
Shahram Dehghani Ghale Sorkh,
Abdolah Mirzaei,
Abbas Zeyghami
Abstract:This study investigated the effect of human menopausal gonadotropin (hMG) on reproductive efficiency of synchronized ewes with the sponge and progesterone (P4) injection‐based protocols. In study 1, anoestrous ewes (n = 120) were used. Sixty ewes were treated with sponge (S) for 12 days. The injection of eCG (SeCG group, n = 30) or hMG (ShMG, n = 30) was given at the time of sponge removal. Thirty ewes received IM injection of P4, three times every 48 h and the injection of hMG was given 24 h after the third P… Show more
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