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Online Journal of Veterinary Research©
Volume 23 (3):200-205, 2019.
Effect of 6 and 12 day intravaginal fluorogestone or progesterone on estrus
synchronization and sexual behavior in non-breeding ewes.
Aliasghar Moghaddam1, Ghadir Sohrabi2, Hamid Kohram3, Peyman Rahimi-Feyli1
1Department of Clinical Science, School of Veterinary Medicine, Razi University, Kermanshah, 2Agriculture Faculty, Saveh Azad University, Saveh, 3Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran.
Moghaddam A, Sohrabi G, Kohram H, Rahimi-Feyli P., Effect of 6 and 12 day intravaginal fluorogestone or progesterone on estrus synchronization and sexual behavior in non-breeding ewes, Onl J Vet Res., 23(3):200-205, 2019. Groups of 6 pluriparous Faharani 3-4 year old ewes weighing 41.24±1.6 kg each were inserted intravaginal sponges with 40 mg fluorogestone acetate (FGA) for 6 or 12 days. Other ewes received 0.3g progesterone (CIDR) for 6 or 12 days. At withdrawal, all were injected IM 400IU equine chorionic gonadotropin (eCG). Following removal of hormone treatments, 4 Faharani rams were allowed to mingle with ewes that had been treated and sexual behavior was recorded. Anogenital sniffing and head turning was more frequent than soliciting or scrotum sniffing in all ewes. Non-firm standing, tail fanning and squatting was not observed. Sexual behavior in those implanted progesterone for 6 days was similar to those implanted 12 days and therefore we recommend 6-day only insertion.
Key Words: Farahani ewe, sexual behavior, estrus synchronization, Raw Data Provided.