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Journals / Dicle Üniversitesi Veteriner Fakültesi Dergisi / 2026 / Cilt: 19 Sayı: 1

Effects of Progesterone Supplementation Administered Between Days 8 and 16 After Mating on Reproductive Performance in Goats

Keçilerde Çiftleşmeden Sonra 8-16. Günler Arasında Uygulanan Progesteron Takviyesinin Üreme Performansı Üzerine Etkileri

M. Ferit Özmen(DICLE UNIVERSITY)0000-0002-5531-220X
Elif Merve Çınar(DİCLE ÜNİVERSİTESİ)0000-0003-0684-7213
Nedim Aksoy(DİCLE ÜNİVERSİTESİ)0009-0007-6671-9404
Zehra Coşkun Bahçe(BİNGÖL ÜNİVERSİTESİ)0000-0002-9489-9568
Nurten Ezgi Demiroğlu(DİCLE ÜNİVERSİTESİ)0009-0007-4214-7042
Pages
6–10
Publication Date
2026-06-30
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AI Summary & Key Takeaways

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

The findings indicate that, despite a numerical increase in reproductive parameters in the group administered progesterone, there was no statistically significant difference between the two groups in terms of pregnancy rate and lambing efficiency (P>0.05).

📌 3 Key Takeaways

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Objective & Hypothesis:This study was conducted to determine the effects of progesterone administered to goats after mating on pregnancy rates and the number of lambs born.
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Key Findings & Data:Following mating, progesterone-impregnated intravaginal sponges were administered to the animals in the study group on day 8 after mating to support early pregnancy, and these sponges were removed on day 16.
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Conclusion & Impact:The findings indicate that, despite a numerical increase in reproductive parameters in the group administered progesterone, there was no statistically significant difference between the two groups in terms of pregnancy rate and lambing efficiency (P>0.05).
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Gebelik oranı · keçi · kuzu sayısı

Abstract

This study was conducted to determine the effects of progesterone administered to goats after mating on pregnancy rates and the number of lambs born. The goats included in the synchronization protocol were divided into two groups: a control group and a progesterone administration group. Following mating, progesterone-impregnated intravaginal sponges were administered to the animals in the study group on day 8 after mating to support early pregnancy, and these sponges were removed on day 16. All animals underwent a 30-day pregnancy examination evaluated by ultrasonography. Pregnancy rates and twin-triplet distributions obtained during the birth period were recorded. The findings indicate that, despite a numerical increase in reproductive parameters in the group administered progesterone, there was no statistically significant difference between the two groups in terms of pregnancy rate and lambing efficiency (P>0.05). This situation reveals that progesterone administered between days 8 and 16 after mating did not significantly improve reproductive performance in synchronized goats. In conclusion, it was concluded that post-mating progesterone administration may be economically beneficial, but more studies involving a larger number of goats are needed before it can be recommended as a routine practice.

Özet

Bu çalışma, keçilerde çiftleşme sonrasında uygulanan progesteronun gebelik oranı ve doğumda elde edilen kuzu sayısı üzerindeki etkilerini belirlemek amacıyla gerçekleştirilmiştir. Araştırmada senkronizasyon protokolüne dahil edilen keçiler; kontrol ve progesteron uygulama grubu olarak iki gruba ayrılmıştır. Çiftleşmenin ardından çalışma grubundaki hayvanlara erken gebelik dönemini desteklemek amacıyla çiftleşmeden sonra 8. günde progesteron emdirilmiş intravajinal sünger uygulanmış ve bu süngerler 16. günde çıkarılmıştır. Tüm hayvanlarda 30. gün gebelik muayenesi ultrasonografi ile değerlendirilmiştir. Doğum döneminde elde edilen gebelik oranları ve ikizlik-üçüzlük dağılımları kaydedilmiştir. Elde edilen bulgular, progesteron uygulanan grupta üreme parametrelerinde sayısal bir artış olmasına rağmen, gebelik oranı ve kuzu verimliliği açısından iki grup arasında istatistiksel olarak anlamlı bir fark olmadığını göstermiştir (P>0.05). Bu durum, çiftleşme sonrası 8-16. günler arasında uygulanan progesteronun senkronize edilen keçilerde üreme performansını belirgin düzeyde iyileştirmediğini ortaya koymaktadır. Sonuç olarak, çiftleşme sonrası progesteron uygulamasının ekonomik olarak faydalı olabileceği ancak rutin bir uygulama olarak önerilebilmesi için daha fazla keçinin dahil edildiği çalışmalara ihtiyaç olduğu kanaatine varılmıştır.

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Cite This Article

Özmen, M. F., Çınar, E. M., Aksoy, N., Bahçe, Z. C., Demiroğlu, N. E. (2026). Effects of Progesterone Supplementation Administered Between Days 8 and 16 After Mating on Reproductive Performance in Goats. Dicle Üniversitesi Veteriner Fakültesi Dergisi, Cilt: 19 Sayı: 1, 6–10. https://doi.org/10.47027/duvetfd.1843310

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