Journals / Ankara Üniversitesi Veteriner Fakültesi Dergisi / 2019 / Cilt: 66 - Sayı: 1

Determination of efficient CIDR application periods in timed artificial insemination of Damascus goats during the breeding season

Damascus keçilerinde aşım sezonunda sabit zamanlı tohumlama uygulamalarında CIDR’ın etkin uygulama sürelerinin belirlenmesi

Pages
67–72
Publication Date
2022-11-05
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Further studies with a larger number of animals are needed to clarify the questions about fertility and economic issues.

📌 3 Key Takeaways

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Objective & Hypothesis:This research was conducted to determine the most efficient CIDR application periods in timed artificial insemination (TAI) protocols in Damascus goats during the breeding season.
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Key Findings & Data:CIDR was used for 18, 12, 6 and 3 days in groups VL, L, S, and VS, respectively. 500 IU of eCG and 125 mcg of cloprostenol were administered on the day of CIDR removal.
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Conclusion & Impact:Further studies with a larger number of animals are needed to clarify the questions about fertility and economic issues.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

This research was conducted to determine the most efficient CIDR application periods in timed artificial insemination (TAI) protocols in Damascus goats during the breeding season. Ninety-six Damascus goats were used and the animals were randomly allocated into four equal groups. CIDR was used for 18, 12, 6 and 3 days in groups VL, L, S, and VS, respectively. 500 IU of eCG and 125 mcg of cloprostenol were administered on the day of CIDR removal. The goats were timely inseminated intra-cervically by cooled semen 48-60 h after removal of CIDR together with 5 mcg GnRH administration. Pregnancy rates were 62.5%, 79.2%, 75% and 62.5% in VL, L, S and VS groups, respectively. Abortion rates were 13.3%, 5.3%, 5.6% and 13.3%, also kidding rates were found to be 86.6%, 94.7%, 94.4% and 86.6% in VL, L, S and VS groups, respectively. Fertility rates were 54.2%, 75%, 70.8% and 54.2% in VL, L, S and VS groups, respectively. No significant difference was observed in pregnancy rates, abortion and kidding rates among the groups (p>0.05). As a result, CIDR has a wide range of application period in TAI protocols in Damascus goats during the breeding season. The short-term usage as short as 3 days, will offer high flexibility in TAI protocols of goats. Even no statistical difference was obtained among the groups, lower rates of fertility in VS and VL groups may provide economic loss. Further studies with a larger number of animals are needed to clarify the questions about fertility and economic issues.

Özet

Çalışma, Şami keçilerinde aşım sezonunda, sabit zamanlı tohumlama protokollerinde CIDR’ın en uygun uygulama zamanını belirlemek amacıyla düzenlendi. Çalışmada 96 keçi kullanıldı ve hayvanlar rastgele dört eşit gruba ayrıldı. CIDR VL, L, S ve VS gruplarında sırasıyla 18, 12, 6 ve 3 gün süre ile kullanıldı. Hayvanlara CIDR çıkartılma anında 500 IU eCG ve 125 mcg kloprostenol yapıldı. Keçiler, CIDR’ın çıkartılmasından 48-60 saat sonra intra-servikal olarak soğutulmuş sperma ile tohumlandı ve tohumlama anında 5 mcg GnRH kas içi yolla uygulandı. Gebelik oranları VL, L, S ve VS gruplarında sırasıyla %62.5, %79.2, %75 ve %62.5 bulundu. İlaveten abort oranları VL, L, S ve VS gruplarında sırasıyla %13.3, %5.26, %5.55 ve %13.3 bulundu. Doğum oranları ise sırasıyla %86.6, %94.7, %94.4 ve %86.6 olarak belirlendi. Fertilite oranları VL, L, S ve VS gruplarında sırasıyla %54.2, %75, %70.8 ve %54.2 bulundu. Gruplar arasında fertilite parametrelerinde istatistiksel farklılık belirlenemedi (p>0.05). Sonuç olarak CIDR’ın keçilerde aşım sezonunda sabit zamanlı tohumlama uygulamalarında geniş bir kullanım aralığı olduğu tespit edildi. Bu zamana kadar bildirilen en kısa kullanım süresinin (3 gün) senkronizasyon ve sabit zamanlı tohumlama uygulamalarında uygulama kolaylığı sağlayabileceği kanısına varıldı. Her ne kadar istatistik fark bulunmasa da VL ve VS gruplarındaki fertilite oranlarındaki düşüklüğün ekonomik kayıplara sebep olabileceği ve daha geniş gruplarla yapılacak çalışmaların bu konuyu aydınlatabileceği kanısına varıldı.

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Cite This Article

KÖSE, A. M., KARACA, F., ÖZCAN, O., COŞKUN, N., ATEŞ, C. T., ÜRER, E. K., SARIBAY, M. K., DOĞRUER, G. (2022). Determination of efficient CIDR application periods in timed artificial insemination of Damascus goats during the breeding season. Ankara Üniversitesi Veteriner Fakültesi Dergisi, Cilt: 66 - Sayı: 1, 67–72. https://ajindex.com/articles/648660

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