Determination of the effect of different synchronization protocols on fetal sex in heifers
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Date
2018
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Publisher
Selçuk Üniversitesi Veterinerlik Fakültesi
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info:eu-repo/semantics/openAccess
Abstract
Amaç: Sunulan çalışma, düvelerde uygulanan farklı senkronizasyon yöntemlerinin fetal cinsiyet üzerine etkilerinin belirlenmesi amacıyla yapıldı. Gereç ve Yöntem: Düveler (n=120) rastgele 3 gruba ayrılarak birinci grup (n=40) PGF2?, ikinci grup (n=40) ovsynch protokolü, 3. grup (n=40) ise intravajinal progesteron salan bir aygıt kullanılarak senkronize edildi. Gebe düveler takip edilerek buzağıların cinsiyetleri kaydedildi. Bunlara ek olarak daha iyi bir değerlendirme yapabilmek amacıyla bir önceki yıla ait işletme kayıtları alındı. Bulgular: Birinci gruptaki düvelerde % 42,5 oranında gebelik elde edildi ve bu gebelikler sonrası şekillenen doğumlardan 11’inde erkek, 6’sında dişi buzağı doğdu. İkinci gruptaki düvelerde % 45,0 oranında gebelik elde edildi ve bu gebelikler sonrası şekillenen doğumlardan 7’sinde erkek, 11’inde dişi buzağı doğdu. Üçüncü gruptaki düvelerde ise % 40,0 oranında gebelik elde edildi ve bu gebelikler sonrası şekillenen doğumlardan 8’inde erkek, 8’inde dişi buzağı doğdu. Bir önceki yıla ait işletme kayıtları incelendiğinde gebeliği tespit edilen düvelerden % 48,1’i dişi ve % 51,9’u erkek buzağı doğduğu belirlendi. Gruplar arasında gebelik oranları ve fetal cinsiyet bakımından önemli bir farkın olmadığı tespit edildi (P>0.05). Aynı zamanda bir önceki işletme kayıtlarına göre de fetal cinsiyet bakımından istatistiki olarak bir fark belirlenemedi (P>0.05). Öneri: Sonuç olarak, düvelerde farklı senkronizasyon yöntemlerinin fetal cinsiyet üzerine etkisinin olmadığı belirlendi. İstatistiksel fark belirlenememesine rağmen sayısal olarak çift doz PGF2? grubunda daha fazla erkek, Ovsynch grubunda ise daha fazla dişi buzağı doğduğu görüldü
Aim: The aim of this study was to detect the effect of different synchronization protocols on fetal sex in heifers. Materials and Methods: Heifers (n=120) were divided randomly into three groups. The heifers in the first group (n=40), the second group (40), and the third group (n=40) were synchronized with two doses of PGF2?, Ovsynch, and intravaginal progesterone respectively. Pregnant heifers were followed up and the sexes of calves were recorded. Operation records of the last year were taken in order for better evaluation. Results: In the first group, the pregnancy rate was 42.7% and 11 of calves born were male, 6 of them were female. In the second group, 45% pregnancy rate was achived and 7 of calves born of these pregnancies were male, 11 of which were female. As for the third group, 40,0% pregnancy rate was achived and 8 of calves born of these pregnancies were male, 8 of them female. When the operating records belongs to previous year were analyzed, it was determined that 48,1% female calf 51,9% male calves were born. No significant differences were found in pregnancy rate and fetal sex rate between different groups (P>0.05). Moreover, there was no statistical difference in gender ratio when datas compared with operating records (P>0.05). Conclusion: In conclusion, it was determined that different synchronization methods had no effect on fetal sex. Although there was no significant differences between groups, more male calves in PGF2? and more female calves were born in Ovsynch group.
Aim: The aim of this study was to detect the effect of different synchronization protocols on fetal sex in heifers. Materials and Methods: Heifers (n=120) were divided randomly into three groups. The heifers in the first group (n=40), the second group (40), and the third group (n=40) were synchronized with two doses of PGF2?, Ovsynch, and intravaginal progesterone respectively. Pregnant heifers were followed up and the sexes of calves were recorded. Operation records of the last year were taken in order for better evaluation. Results: In the first group, the pregnancy rate was 42.7% and 11 of calves born were male, 6 of them were female. In the second group, 45% pregnancy rate was achived and 7 of calves born of these pregnancies were male, 11 of which were female. As for the third group, 40,0% pregnancy rate was achived and 8 of calves born of these pregnancies were male, 8 of them female. When the operating records belongs to previous year were analyzed, it was determined that 48,1% female calf 51,9% male calves were born. No significant differences were found in pregnancy rate and fetal sex rate between different groups (P>0.05). Moreover, there was no statistical difference in gender ratio when datas compared with operating records (P>0.05). Conclusion: In conclusion, it was determined that different synchronization methods had no effect on fetal sex. Although there was no significant differences between groups, more male calves in PGF2? and more female calves were born in Ovsynch group.
Description
Keywords
Fetal cinsiyet, senkronizasyon, düve, Fetal sex, synchronization, heifer
Journal or Series
Eurasian Journal of Veterinary Sciences
WoS Q Value
Scopus Q Value
Volume
34
Issue
4
Citation
Kıvrak M.B., Aydın İ., Semacan A., Çakır Y. Z., (2018). Determination of the effect of different synchronization protocols on fetal sex in heifers. Eurasian Journal of Veterinary Sciences, 34 (4), 284-289.DOI: 10.15312/EurasianJVetSci.2018.212
