Sütçü İneklerde Progesteron (PRID®) ile Desteklenen Ovsycnh Yönteminin Gebelik Oranı Üzerine Etkisi

Öz

Ovsynch yönteminin progesteron ile desteklenmesinin sütçü ineklerde gebelik oranları üzerine etkisi araştırılmıştır. Toplam 50 adet Holstein Fresian ırkı inek, iki gruba ayrılarak kullanılmıştır. Grup 1 (G1; n=30)'e ovsynch prosedürü: 0. gün GnRH (Gonadorelin diasetat tetrahidrat, 100 μg/inek, i.m., Ovarelin^®, Ceva, Türkiye), 7. gün PGF2α (Dinoprost, 25 mg/inek, i.m., Enzaprost-T^®, Ceva, Türkiye), 9. gün 2. GnRH uygulanmış ve takip eden 16. saatte suni tohumlama yapılmıştır. Grup 2 (G2; n=20)'ye G1'den farklı olarak intravaginal PRID Delta^® (1,55 g Progesteron, Ceva, Türkiye) yerleştirilmiş ve 0. gün ile 7. gün arasında tutulmuştur. Gebelik kontrolleri tohumlama sonrası 45-60. günler arasında rektal palpasyon ile yapılmıştır. G1 ve G2 için postpartum gün 59,93±8,72 ile 59,25±14,17 gün (P>0,05); süt verimi 26,16±4,93 ile 28,80±6,77 kg (P>0,05); laktasyon sayısı 1,90±0,53 ile 1,75±0,44 (P>0,05); vücut kondisyon skoru 3,27±0,42 ile 3,25±0,30 (P>0,05) olarak belirlenmiştir. Gruplar kendi içlerinde gebe ve gebe olmayan şeklinde alt gruplara ayrılarak yukarıdaki paramatreler yönünden karşılaştırıldıklarında da önem bulunamamıştır. G2'de gebelik oranı %60,00 ile G1'in %53,33 oranından daha yüksek olmasına rağmen, istatistiksel olarak önem belirlenmemiştir (P>0,05). Sonuç olarak, ovsynch prosedürünün progesteron ile desteklenmesinin gebelik oranlarında artışa yol açabileceği, PRID'in bu amaçla kullanılabileceği ancak konuyla ilgili daha fazla çalışma yapılmasının gerekli olduğu kanaatine varılmıştır.

Anahtar Kelimeler

• ebelik,inek,ovsynch,progesteron

The Effect of Ovsynch Protocol Combine with Progesterone (PRID®) on Pregnancy Rate in Dairy Cows

Abstract

The effects of ovsynch protocol combine with progesterone on pregnancy rate in dairy cows were investigated. A total of 50 Holstein-Fresian cows, divided into two groups were used. In groups 1 (G1; n=30) were received ovsynch protocol: GnRH (Gonadorelin diasetat tetrahidrat, 100 μg/cow, i.m., Ovarelin^®, Ceva, Turkey) on d0, PGF2α (Dinoprost, 25 mg/cow, i.m., Enzaprost-T^®, Ceva, Turkey) on d7, 2nd GnRH on d9 were applied and subsequent 16^th hours artificial inseminatin were preformed. In Grup 2 (G2; n=20) unlike the G1 a progesterone source PRID-Delta^® (1.55 g Progesteron, Ceva, Türkiye) were inserted intravaginally during day 0 to 7. Pregnancy diagnosis was performed by rectal palpation on days post-AI 45-60. Postpartum days 59.93±8.72 and 59.25±14.17 days (P>0.05); milk yield 26.16±4.93 and 28.80±6.77 kg (P>0.05); lactation number 1.90±0.53 and 1.75±0.44 (P>0.05); body condition scores 3.27±0.42 and 3.25±0.30 (P>0.05) were found for G1 and G2, respectively. When the groups were divided into two subgroups as pregnant and non-pregnant animals, there was no significance between the above parameters. Although the pregnancy rates as 60.00% in G2 supported by progesterone were higher than G1 (53.33%), there was not found significance between the groups (P>0.05). Conclusion: Applied progesterone to support ovsynch protocol may increase pregnancy rates and PRID may use this purpose. However more studies are needed to confirm the results.

Keywords

• Pregnancy,cow,ovsynch,progesterone

Kaynakça

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