Yıl: 2020 Cilt: 36 Sayı: 1 Sayfa Aralığı: 36 - 41 Metin Dili: Türkçe DOI: 10.15312/EurasianJVetSci.2020.257 İndeks Tarihi: 26-11-2020

Holstein ırkı ineklerde target breeding ve presynch-ovsynch senkronizasyon yöntemlerinin postpartum ilk tohumlamada gebe kalma oranı üzerine etkisi

Öz:
Amaç: Sunulan çalışmada Holstein ırkı ineklerde target breeding ve presynchovsynchsenkronizasyon protokollerinin ilk tohumlamadaki gebe kalma oranıüzerine etkilerinin belirlenmesi amaçlanmıştır.Gereç ve Yöntem: Çalışmada postpartum 30-35. günler arasında olan ve 2,5-6yaşlı 160 sağlıklı Holstein ırkı inek kullanıldı. İneklere ilk olarak rektal ve ultrasonografikmuayene yapıldı ve genital sisteminde herhangi bir sorun tespitedilmeyen hayvanlar çalışmaya dahil edildi. Çalışmada hayvanlar 3 gruba ayrıldı.Birinci Grup (Target breeding, n=60) ineklere 14 gün arayla 3 kez PGF2αenjeksiyonu yapıldı. Üçüncü PGF2α enjeksiyonundan sonra 72. saate kadaröstrus gösteren hayvanlar tohumlandı. Östrus göstermeyen hayvanlar ise 80.saatte sabit zamanlı olarak tohumlandı. İkinci Grup (Presynch-Ovsynch, n=50)ineklere ise 14 gün arayla iki kez PGF2α enjeksiyonu yapıldı ve ikinci PGF2αenjeksiyonundan 12 gün sonra Ovsynch protokolüne başlandı. Üçüncü Grup(Kontrol, n=50) ineklere ise herhangi bir uygulama yapılmadı. Postpartum ilktohumlama günü ve gebe kalma oranları kayıt altına alındı. Tohumlama sonrasıineklerin gebelik muayeneleri 30. günde ultrasonografi ile yapıldı.Bulgular: Target breeding, presynch-ovsynch ve kontrol grubunda gebe kalmaoranları sırasıyla; %36,66 (22/60), %32,0 (16/50) ve %24,0 (12/60)olarak belirlendi (p>0.05). Target breeding grubunda son PGF2α enjeksiyonundansonra 72 saat içerisinde 38 (%63,33; 38/60) inekte östrus gözlemlendi.Östrus gösterdiği tespit edilip tohumlanan ve östrus göstermeden sabitzamanlı tohumlanan ineklerin gebelik oranları sırasıyla %42,10 (16/38) ve%27,27 (6/22) bulundu.Öneri: Target breeding ve presynch-ovsynch gruplarında ilk tohumlama sonrasıgebe kalma oranları istatistiksel olarak artmamasına rağmen bu gruplardakontrol grubuna göre daha yüksek gebe kalma oranları elde edilmiştir. Sonuçolarak bu senkronizasyon protokollerinin ilk servis periyodunda olumluetkisinin olabileceği ancak daha fazla hayvan sayısı ile yeni çalışmaların yapılmasıgerektiği düşünülmektedir.
Anahtar Kelime:

The effect of target breeding and presynch-ovsynch synchronization methods on conception rate in postpartum first insemination in Holstein breed cows

Öz:
Aim: The aim of this study was to determine the effect of target breeding and presynch-ovsynch synchronization protocols on the conception rate in the first insemination in Holstein breed cows. Materials and Methods: Study material was consisted of 160 healthy Holstein cows within 30-35 days postpartum and 2.5-6 year of age. The cows were first examined by rectally and ultrasonographically and animals without any problems in the genital system were included in the study. The animals were divided into 3 groups. Group 1 (Target breeding, n = 60) cows were injected with PGF2α three times at 14 days intervals. After the third injection of PGF2α, animals showing estrus up to 72 hours were inseminated. Animals that did not show estrus were inseminated in fixed time at 80th hour. In the second group (Presynch-Ovsynch, n = 50) cows were injected with PGF2α twice 14 days apart and Ovsynch protocol was started 12 days following the second PGF2α injection. Cows in the third group (Control, n = 50) did not receive any treatment. Postpartum first insemination day and conception rates were recorded. Pregnancy examinations of cows were performed by ultrasonography on the 30th day following insemination. Results: Pregnancy rates in target breeding, presynch-ovsynch and control groups were as 36.66% (22/60), 32.0% (16/50) and 24.0% (12/60), respectively (p>0.05). In the target breeding group, estrus was observed in 38 (63.33%; 38/60) cows within 72 hours following the last injection of PGF2α. Pregnancy rates were 42.10% (16/38) and 27.27% (6/22) in inseminated cows by showing estrus and fixed-time inseminated cows without showing estrus, respectively. Conclusion: Although the conception rates after the first insemination did not increase statistically in the target breeding and presynch-ovsynch groups, higher conception rates were obtained in these groups compared to the control group. In conclusion, it is thought that these synchronization protocols may have a positive effect in the first service period however; further studies with more animals are needed.
Anahtar Kelime:

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
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APA Karakaş Alkan K, Alkan H (2020). Holstein ırkı ineklerde target breeding ve presynch-ovsynch senkronizasyon yöntemlerinin postpartum ilk tohumlamada gebe kalma oranı üzerine etkisi. , 36 - 41. 10.15312/EurasianJVetSci.2020.257
Chicago Karakaş Alkan Kubra,Alkan Hasan Holstein ırkı ineklerde target breeding ve presynch-ovsynch senkronizasyon yöntemlerinin postpartum ilk tohumlamada gebe kalma oranı üzerine etkisi. (2020): 36 - 41. 10.15312/EurasianJVetSci.2020.257
MLA Karakaş Alkan Kubra,Alkan Hasan Holstein ırkı ineklerde target breeding ve presynch-ovsynch senkronizasyon yöntemlerinin postpartum ilk tohumlamada gebe kalma oranı üzerine etkisi. , 2020, ss.36 - 41. 10.15312/EurasianJVetSci.2020.257
AMA Karakaş Alkan K,Alkan H Holstein ırkı ineklerde target breeding ve presynch-ovsynch senkronizasyon yöntemlerinin postpartum ilk tohumlamada gebe kalma oranı üzerine etkisi. . 2020; 36 - 41. 10.15312/EurasianJVetSci.2020.257
Vancouver Karakaş Alkan K,Alkan H Holstein ırkı ineklerde target breeding ve presynch-ovsynch senkronizasyon yöntemlerinin postpartum ilk tohumlamada gebe kalma oranı üzerine etkisi. . 2020; 36 - 41. 10.15312/EurasianJVetSci.2020.257
IEEE Karakaş Alkan K,Alkan H "Holstein ırkı ineklerde target breeding ve presynch-ovsynch senkronizasyon yöntemlerinin postpartum ilk tohumlamada gebe kalma oranı üzerine etkisi." , ss.36 - 41, 2020. 10.15312/EurasianJVetSci.2020.257
ISNAD Karakaş Alkan, Kubra - Alkan, Hasan. "Holstein ırkı ineklerde target breeding ve presynch-ovsynch senkronizasyon yöntemlerinin postpartum ilk tohumlamada gebe kalma oranı üzerine etkisi". (2020), 36-41. https://doi.org/10.15312/EurasianJVetSci.2020.257
APA Karakaş Alkan K, Alkan H (2020). Holstein ırkı ineklerde target breeding ve presynch-ovsynch senkronizasyon yöntemlerinin postpartum ilk tohumlamada gebe kalma oranı üzerine etkisi. Eurasian Journal of Veterinary Sciences, 36(1), 36 - 41. 10.15312/EurasianJVetSci.2020.257
Chicago Karakaş Alkan Kubra,Alkan Hasan Holstein ırkı ineklerde target breeding ve presynch-ovsynch senkronizasyon yöntemlerinin postpartum ilk tohumlamada gebe kalma oranı üzerine etkisi. Eurasian Journal of Veterinary Sciences 36, no.1 (2020): 36 - 41. 10.15312/EurasianJVetSci.2020.257
MLA Karakaş Alkan Kubra,Alkan Hasan Holstein ırkı ineklerde target breeding ve presynch-ovsynch senkronizasyon yöntemlerinin postpartum ilk tohumlamada gebe kalma oranı üzerine etkisi. Eurasian Journal of Veterinary Sciences, vol.36, no.1, 2020, ss.36 - 41. 10.15312/EurasianJVetSci.2020.257
AMA Karakaş Alkan K,Alkan H Holstein ırkı ineklerde target breeding ve presynch-ovsynch senkronizasyon yöntemlerinin postpartum ilk tohumlamada gebe kalma oranı üzerine etkisi. Eurasian Journal of Veterinary Sciences. 2020; 36(1): 36 - 41. 10.15312/EurasianJVetSci.2020.257
Vancouver Karakaş Alkan K,Alkan H Holstein ırkı ineklerde target breeding ve presynch-ovsynch senkronizasyon yöntemlerinin postpartum ilk tohumlamada gebe kalma oranı üzerine etkisi. Eurasian Journal of Veterinary Sciences. 2020; 36(1): 36 - 41. 10.15312/EurasianJVetSci.2020.257
IEEE Karakaş Alkan K,Alkan H "Holstein ırkı ineklerde target breeding ve presynch-ovsynch senkronizasyon yöntemlerinin postpartum ilk tohumlamada gebe kalma oranı üzerine etkisi." Eurasian Journal of Veterinary Sciences, 36, ss.36 - 41, 2020. 10.15312/EurasianJVetSci.2020.257
ISNAD Karakaş Alkan, Kubra - Alkan, Hasan. "Holstein ırkı ineklerde target breeding ve presynch-ovsynch senkronizasyon yöntemlerinin postpartum ilk tohumlamada gebe kalma oranı üzerine etkisi". Eurasian Journal of Veterinary Sciences 36/1 (2020), 36-41. https://doi.org/10.15312/EurasianJVetSci.2020.257