Şükrü DURSUN, Mehmet KÖSE, Sedat Hamdi KIZIL, Gaye BULUT, Caner ÖZTÜRK, Mehmet Osman ATLI, Tahir KARAŞAHİN

Foliküler Kistli Holstein Irkı Düvelerde Ovsynch Protokolünün Gebelik Oranları Üzerine Etkisi

Bu çalışmada, foliküler kistli Holstein ırkı düvelerde Ovsynch programının tedavideki etkinliğini belirlemek amaçlan- dı. Özel bir süt sığırı işletmesinde, iki veya üç tohumlamadan sonra gebe kalmayan, sık düzensiz, uzun veya sürekli östrüs belirtileri gösteren 2018 yılında 19 baş, 2022 yılında 17 baş, toplam 36 baş Holstein ırkı düve on gün arayla ikişer kez rektal palpasyon (RP) ve ultrasonografi (USG) ile tekniğine uygun olarak muayene edildi. İkinci muayeneden sonra, korpus luteum (CL) yokluğunda, 25 mm'den büyük çapta folikül taşıyan düveler (2018 yılında 13, 2022 yılında 12 olmak üzere toplam 25), foliküler kist grubuna dahil edilirken, kalan (2018’de 6, 2022 ‘de 5) 11 düve kontrol grubu olarak ayrıldı. Her iki gruptaki düvelere Ovsynch protokolü uygulandı. Düveler aynı ortamda aynı rasyon ile beslendi. Düvelerin gebelik muayeneleri tohumlamadan 45 gün sonra RP ve USG ile yapıldı. Elde edilen verilerin istatistiksel analizinde SPSS hazır paket programı kullanıldı. Gebelik oranı foliküler kist grubunda %88.0 (22/25), kontrol grubunda %72.73 (8/11) olarak tespit edildi. Grupların gebelik oranları arasında anlamlı fark yoktu (P≥0.05). Sonuç olarak, Ovsynch protokolünün foliküler kisti olan düvelerde kullanılabileceği kanısına varıldı.

Anahtar Kelimeler:

Düve, foliküler kist, gebelik, Ovsynch

The Effect of Ovsynch Protocol on Pregnancy Rates in Holstein Heifers with Follicular Cysts

The aim of this study was to determine of the effectiveness of the Ovsynch protocol in treatment of Holstein heifers having a follicular cyst. On a private dairy cattle farm, 19 in year 2018 and 17 in year 2022 total of 36 heifers having frequent, irregular, prolonged or continuous signs of estrus, non-pregnant after two-three insemination were examined in with both RP and USG, each twice ten days apart. After the second examination, heifers (n=A total of 25, 13 in 2018 and 12 in 2022) bearing follicular structures with diameter larger than 25 mm, in the absence of any CL, were included in follicular cyst group, while the remaining (6 in 2018, 5 in 2022) 11 heifers were assigned as control group. All of the heifers in the two groups received the Ovsynch protocol. Heifers were fed with the same ration in the same environment. Pregnancy examinations were done on 45 days after fixed-insemination. Use was made of SPSS ready package program for statistical analysis of the data. The pregnancy rate was 88% (22/25) in the follicular cyst group, as compared to 72.73% (8/11) in the control group. There was no significant difference between the pregnancy rates of the (P≥0.05). In conclusion, it was concluded that Ovsynch protocol could be used in heifers with follicular cyst.

Keywords:

Follicular cyst, heifer, Ovsynch, pregnancy,

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