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- Title
HASAK ve HASMER Koyun Tiplerinde Sezon içi Kısa Süreli Sünger Uygulamasının Başlangıcında Human Chorionic Gonadotropin veya Gonadotropin-Releasing Hormon Uygulamasının Reprodüktif Performans Üzerine Etkisi.
- Authors
KÖSE, Mehmet; KIRBAŞ, Mesut; BÜLBÜL, Bülent; DURSUN, Şükrü
- Abstract
In present study, it was aimed to determine the effect of GnRH or hCG injection at the beginning of short time vaginal sponge application on reproductive performance in HASAK (HSK) and HASMER (HSM) ewes during the breeding season. As material 38 HSK and 37 HSM ewes were used. Each ewe genotype was divided into three groups and 10 mg GnRH (GnRH group), 200 IU hCG (hCG group) or 1 ml sterile saline solution (control group) were injected intramuscularly. Immediately after injections, intra-vaginal sponges were inserted into vagina for 7 days. At the removing of vaginal sponge, 500 IU PMSG and 75 mcg PGF2 alpha were injected intramuscularly. Following the last injection, estrous was detected by fertile teaser rams twice a day for 5 days, and ewes were mated. Pregnancies were detected on day 35 after mating by using ultrasonography. Estrous, pregnancy, lambing and twinning rate, KKBDKS and DYKBDKS were considered as reproductive performance parameters for determination of the effect of treatments (GnRH or hCG). There was no statistical difference for reproductive performance parameters among groups. As a result, it was concluded that was no improving effect of GnRH or hCG injection at the beginning of short time vaginal sponge application on evaluated reproductive performance parameters in HSK and HSM ewes during the breeding season in present study.
- Publication
Journal of the Faculty of Veterinary Medicine / Veteriner Fakultesi Dergisi, 2012, Vol 31, Issue 2, p21
- ISSN
1301-3173
- Publication type
Article