The effect of air pressure with cervical artificial insemination on the fertility of awassi ewes synchronized with $PGF2\alpha$
Küçük Resim Yok
Tarih
2010
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Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Bu çalışmada, İvesi koyunlarda nativ sperma ile servikal sun’i tohumlama sırasında uygulanan hava basıncının fertilite üzerine etkisi araştırıldı. Araştırmada, aşım sezonu içerisinde bulunan ve normal siklusa sahip toplam 60 baş İvesi koyun (2-5 yaşlı) kullanıldı. Tüm koyunlara bir PGF2? analoğunun kas içi iki dozunun 7 gün arayla uygulamasını içeren PG-7 gün protokolü uygulandı. Hayvanlar iki gruba ayrıldı. Birinci gruba (n=30) sevikal sun’i tohumla yapıldı. İkinci gruba (n=30) bir hava pompası aracılığıyla servikal sun’i tohumla gerçekleştirildi. Sun’i tohumlamalar ikinci PGF2? enjeksiyonundan 48 saat sonra yapıldı. Gebelikler sun’i tohumlamayı takiben 30. günde transrektal ultrasonografi ile belirlendi. Gebelik oranı, hava pompası ile yapılan servikal sun’i tohumlamada (APCAI), servikal sun’i tohumlamadan (CAI) daha yüksek bulundu (%80.0 karşılık %46.7) (P<0.01). Kuzulama oranı, hava pompası ile servikal sun’i tohumlamada, servikal sun’i tohumlama grubuna göre daha yüksek bulundu (%70.0, %46.7) ve tohumlama metodu kuzulama oranı üzerinde önemli etkiye sahip oldu (P<0.05). Koyun başına doğan kuzu oranı tohumlama metotlarından etkilenmedi (APCAI, 1.09; CAI, 1.14). Sonuç olarak, İvesi koyunlarında hava pompası ile servikal sun’i tohumlama, mekanizması tam olarak belirlenemese de klinik yönden gebelik oranını artırdığı kanaatine varıldı.
The aim of this study was to investigate the effect of air pressure on fertility during cervical artificial insemination with fresh semen in Awassi ewes. A total of 60 reproductively normal-cycling Awassi ewes (2-5 years old) were used in the experiment during the breeding season. All ewes were treated with the PG-7 days protocol consisting of two intramuscular doses of a PGF2&#945; analogue administered 7 days apart. Animals were divided into two groups. The first group (n=30) was cervically inseminated (CAI). The second group (n=30) was cervically inseminated by means of an air pump (APCAI). Artificial inseminations were performed 48 h after the second PGF2&#945; injection. Pregnancy was determined using ultrasonography on d 30 after AI. The pregnancy rate was found significantly higher in the APCAI group than in the CAI group (80.0% versus 46.7%) (P<0.01). The lambing rate was found to be greater in the group cervically inseminated with an air pump than in the group cervically inseminated with the conventional method (70.0 versus 46.7%). The insemination method used had a significant effect on lambing rate (P<0.05). Prolificacy was not affected by insemination methods (APCAI, 1.09; CAI, 1.14). It was concluded that cervical insemination with an air pump in Awassi ewes might improve clinical pregnancy rates by mechanisms yet to be defined.
The aim of this study was to investigate the effect of air pressure on fertility during cervical artificial insemination with fresh semen in Awassi ewes. A total of 60 reproductively normal-cycling Awassi ewes (2-5 years old) were used in the experiment during the breeding season. All ewes were treated with the PG-7 days protocol consisting of two intramuscular doses of a PGF2&#945; analogue administered 7 days apart. Animals were divided into two groups. The first group (n=30) was cervically inseminated (CAI). The second group (n=30) was cervically inseminated by means of an air pump (APCAI). Artificial inseminations were performed 48 h after the second PGF2&#945; injection. Pregnancy was determined using ultrasonography on d 30 after AI. The pregnancy rate was found significantly higher in the APCAI group than in the CAI group (80.0% versus 46.7%) (P<0.01). The lambing rate was found to be greater in the group cervically inseminated with an air pump than in the group cervically inseminated with the conventional method (70.0 versus 46.7%). The insemination method used had a significant effect on lambing rate (P<0.05). Prolificacy was not affected by insemination methods (APCAI, 1.09; CAI, 1.14). It was concluded that cervical insemination with an air pump in Awassi ewes might improve clinical pregnancy rates by mechanisms yet to be defined.
Açıklama
Anahtar Kelimeler
Veterinerlik
Kaynak
Kafkas Üniversitesi Veteriner Fakültesi Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
16
Sayı
1
