Acta Veterinaria Eurasia
Research Article

T HE EFFEC T OF MODIFIED OVSYNCH PROTOCOL ON SYNCHRONIZATION AND FERTILIT Y RATE IN TAHIROVA EWES

1.

İstanbul Üniversitesi Veteriner Fakültesi, Dölerme ve Suni Tohumlama Anabilim Dalı 34320, Avcılar, İstanbul

2.

İstanbul Üniversitesi Veteriner Fakültesi, Doğum ve Jinekoloji Anabilim Dalı 34320, Avcılar, İstanbul

3.

Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Istanbul University, 34320 Avcilar, Istanbul, Turkey

4.

İstanbul Üniversitesi Veteriner Fakültesi Doğum ve Jinekoloji Anabilim Dalı

5.

İstanbul Üniversitesi Veteriner Fakültesi Doğum ve Jinekoloji Anabilim Dalı, 34320, Avcılar, İstanbul, Türkiye

6.

İstanbul Üniversitesi Veteriner Fakültesi Doğum ve Jinekoloji Anabilim Dalı, 34320 Avcılar, İstanbul 2Animate Veteriner Kliniği, 34330 Beşiktaş, İstanbul

Acta Vet Eurasia 2012; 38: 37-42
Read: 52 Downloads: 43 Published: 24 December 2019

Tahirova ewes are known as a breed with high milk production. Nowadays, easy, economic and effective methods are developed for synchronization of cattle. The aim of this study was to adapt the Ovsynch protocol for cattle to the ewes. For this purpose 150 Tahirova ewes and 6 rams were used. The ewes in breeding season were randomly divided into three groups. On day 0 GnRh and day 6 PGF2a+PMSG administered to each of the ewes. In addition to this hCG was injected to the ewes of Group 2 and 3 on the 8t h day and also estradiol propionat (EP) was administered to the ewes of Group 3 on the day 7.5. Matings have taken place in 68% of Group 1 on the first day and in 32% on the second day. These results were 80% on the first day, 8% on the 2n d day and 12% on the 3r d day in Group 2; 72% on the first day, 11% on the 2n d day and 6% on the 3r d day in Group 3. In Group 1 there were 9 twins (18.7%) out of 48 births.In Group 2 total 49 births, of which 11 twins (22.4%) and in Group 3, 5 (10.4%) of 48 births were twins. By the present study, the reproductive and breeding characteristics of Tahirova, a highly productive and adopted sheep have been determined and recorded. The ovsynch protocol which had been developed for dairy cattle have been modified for sheep and named as EWESYNCH.

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ISSN2618-639X EISSN 2619-905X