Düvelerde suni tohumlama sırasında farklı yollardan uygulanan buserelin'in uvulasyon zamanı ve fertilite üzerine etkisi
Küçük Resim Yok
Tarih
1998
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Bu çalışmada, düvelerde tohumlama anında farklı " yollardan uygulanan buserelin'in ovulasyon zamanı ve gebe kalma oranlan üzerine etkisi araştırıldı. Materyal olarak 24 baş düve kullanıldı. Düveler üç gruba ayrılarak tohumlama anında birinci gruba (n8) 0.0105 mg (2.5 mi) buserelin intramuskuler olarak enjekte edildi. İkinci gruba (n8) 0.1 mg buserelin acetat burun mukozasına püskürtüldü. Üçüncü gruba (n8) ise 1 mi steril serum fizyolojik intramuskuler olarak enjekte edildi. Ovulasyon zamanları altışar saat aralıklarla uygulanan rektal palpasyonla tespit edildi. Bir, iki ve üçüncü grupta ikinci PGF_{2\alpha} enjeksiyonu-ovulasyon intervali sırasıyla 68.92.79, 70.62.03 ve 78.11.10 saat olarak tespit edildi. Gebe hayvanlar tohumlamayı takiben 19. günde kan-progesteron düzeyleri yardımıyla belirlendi. Gebejik oranları bir, iki ve üçüncü grupta sırasıyla %87.5, %87.5, %62.5 olarak tespit edildi. Sonuç olarak, tohumlama anında gerek intramuskuler gerekse nasal yolla GnRH uygulamalarının ikinci PGF_{2\alpha} enjeksiyonu-ovulasyon intervalini kısalttığı ve gebelik oranlarını arttırdığı kanısına varıldı.
Effect of busereline acetate administered by different routes at the time of artificial insemination on the time of ovulation and pregnancy rates in heifers were studied. Twenty-four heifers were used. Animals were divided into three groups and 0.0105 mg (2.5 ml) busereline were injected intramuscularly to the first group (n8), 0.1 mg buserelin were sprayed on the nasal mucpsa in the second group (n8) and 1 mi placebo were injected intramuscularly to the heifers in the third group (n8). Ovulation time were determined by rectal palpation performed with a six-hours intervals starting from fourty-two hours after second PGF_{2\alpha} application. Average duration of the second PGF_{2\alpha} application-ovulation interval were 68.92.79, 70.6±2.03 ve 78.1±1.10 hours in group 1, 2 and 3, respectively. Pregnant animals were detected by blood-progesterone levels measured on day 19 post-insemination. Pregnancy rates in group 1, 2 and 3 were 87.5, 87.5, and 62.5%, respectively. As a conclusion, administration of GnRH at the time of insemination via intramuscular injection or nasal sprays may hasten, ovulation and improve the pregnancy rates in heifers.
Effect of busereline acetate administered by different routes at the time of artificial insemination on the time of ovulation and pregnancy rates in heifers were studied. Twenty-four heifers were used. Animals were divided into three groups and 0.0105 mg (2.5 ml) busereline were injected intramuscularly to the first group (n8), 0.1 mg buserelin were sprayed on the nasal mucpsa in the second group (n8) and 1 mi placebo were injected intramuscularly to the heifers in the third group (n8). Ovulation time were determined by rectal palpation performed with a six-hours intervals starting from fourty-two hours after second PGF_{2\alpha} application. Average duration of the second PGF_{2\alpha} application-ovulation interval were 68.92.79, 70.6±2.03 ve 78.1±1.10 hours in group 1, 2 and 3, respectively. Pregnant animals were detected by blood-progesterone levels measured on day 19 post-insemination. Pregnancy rates in group 1, 2 and 3 were 87.5, 87.5, and 62.5%, respectively. As a conclusion, administration of GnRH at the time of insemination via intramuscular injection or nasal sprays may hasten, ovulation and improve the pregnancy rates in heifers.
Açıklama
Anahtar Kelimeler
Ziraat Mühendisliği
Kaynak
Hayvancılık Araştırma Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
8
Sayı
01.Feb
