Effect on fertility of PMSG applications in different doses in addition to flushing in Kivircik ewes

Year 2018, Volume: 31 Issue: 1, 87 - 91, 01.08.2018

Şeniz Öziş Altınçekiç , Mehmet Koyuncu , Serdar Duru

https://doi.org/10.29136/mediterranean.348592

Cited By: 1

Abstract

In this study, flushing and different doses of pregnant mare serum gonadotrophin (PMSG) application in addition to this in Kivircik Sheep was reviewed on reproductive performance. Research material consisted of 100 head Kivircik sheep that have given birth one time before. The herd was divided into four groups which have equal sheep (n= 25). Flushing was applied to every group, 3 groups other than one group were additionally applied intravaginal 20 mg flourogestone acetate (FGA) and then 300, 400 and 500 IU pregnant mare serum gonadotrophin (PMSG). Estrouses in the groups were observed at 34.86±1.73, 31.91±1.63, 36.67±1.69 and 45.76±1.70 hours and the observed differences were found significant (P<0.001). While the rate of pregnancy were found 100% in every group; fertility, flushing (100%) and flushing+PMSG 500 IU (100%) were found higher than the other groups. No difference was observed among the groups in terms of multiple birthrate, number of lambs per sheep and vitality. It was determined that there was no statistical difference among the groups in terms of birth weight, weaning weight and increase in daily live weight. As a result, it was identified that progesterone+PMSG application in addition to flushing application during anestrus season in Kivircik herd which the research is conducted on, had no significant contribution in terms of reproductive performance. At this point, it was concluded that with a right and seasonable flushing application based on the breeder's preference, the estrous could be synchronization and that the lamb efficiency could be increased.

Keywords

Sheep, Flushing, Vaginal sponge, PMSG, Reproduction characteristics

Kıvırcık koyunlarında flushinge ek olarak farklı dozlarda GKSH uygulamalarının döl verimine etkisi

Abstract

Bu çalışmada, Kıvırcık
koyunlarında flushing ve buna ek olarak farklı dozlarda gebe kısrak serumu
hormonu (GKSH) uygulamasının üreme performansı üzerine etkisi incelenmiştir.
Araştırma materyalini daha önce bir kez doğum yapmış 100 baş Kıvırcık koyun
oluşturmuştur. Araştırma materyali her birinde eşit sayıda (n= 25) koyun
bulunan dört gruba ayrılmıştır. Gruplardaki tüm hayvanlara flushing uygulanmış,
bir grubun dışındaki diğer 3 gruba ek olarak 20 mg flourogestone acetate (FGA)
içeren vajinal sünger uygulanmış ve sonrasında 300, 400 ve 500 IU GKSH enjekte
edilmiştir. Gruplarda kızgınlıklar sırasıyla 34.86±1.73, 31.91±1.63, 36.67±1.69
ve 45.76±1.70 saatlerde görülmüş ve gözlenen farklılıklar önemli bulunmuştur
(P<0.001). Gebelik oranı tüm gruplarda % 100 bulunurken; kuzulama
oranı, flushing ve flushing+GKSH 500 IU gruplarında diğer gruplara göre daha
yüksektir. Çoğuz doğum oranı, koyun başına düşen kuzu sayısı ve yaşama gücü
bakımından gruplar arasında bir fark görülmemiştir. Kuzuların doğum ağırlığı,
sütten kesim ağırlığı ve günlük canlı ağırlık artışı bakımından gruplar
arasında istatistiksel açıdan bir farkın olmadığı belirlenmiştir. Sonuç olarak,
araştırmanın yürütüldüğü Kıvırcık ırkı sürüsünde çiftleşme mevsimi dışındaki
dönemde flushing uygulamasına ek olarak progesteron içeren vajinal sünger+GKSH
uygulamasının üreme performansı açısından belirgin bir katkısı olmadığı
saptanmıştır. Bu noktada yetiştiricinin tercihine bağlı olarak doğru ve
zamanlaması uygun bir flushing uygulaması ile farklı bir program uygulamadan
kızgınlıkların toplulaştırılabileceği ve kuzu veriminin arttırılabileceği
sonucuna ulaşılmıştır.

Keywords

Koyun, Flushing, Vaginal sünger, GKSH, Döl verimi özellikleri

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