GNRH-PGF(2 alpha) and PGF(2 alpha)-PGF(2 alpha) synchronization in Akkaraman cross-bred sheep in the breeding season
Küçük Resim Yok
Tarih
2006
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
NATL VETERINARY RESEARCH INST
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The object of this trial was to determine the efficacy of GnRH-PGF(2 alpha) treatment to synchronize oestrus in sheep during the breeding season. A total of 30 ewes aging 18-24 months and 6 healthy rams aging 2-3 years were used in this experiment. Animals were divided into two groups. The first group received intramuscular (i.m.) injection of GnRH analogue (busereline) and 5 d later i.m. injection of PGF(2 alpha) analogue (Triaprost tromethamine). The second group (control) was given twice, at 9 d interval, i.m. injection of PGF(2 alpha). Fourty-eight hours after the application of PGF(2 alpha) 400 lU of PMSG was injected i.m. to all the ewes. After the detection of oestrous, the ewes were hand-mated naturally. Pregnancy was determined using ultrasonography on d 30 after the mating. Multiple embryos were determined in each ewe using ultrasonography. Oestrus response, pregnancy, lambing rates, and litter sizes were 93.7%, 85.7%, 83.3% and 1.70; 86.6%, 84.6%, 81.8%, and 1.66 in the groups I and II, respectively. Therefore, GnRH-PGF(2 alpha) treatment has been found to be effective in the synchronization of the oestrus in ewes.
Açıklama
Anahtar Kelimeler
Akkaraman ewe, oestrus synchronization, GnRH, prostaglandin
Kaynak
BULLETIN OF THE VETERINARY INSTITUTE IN PULAWY
WoS Q Değeri
N/A
Scopus Q Değeri
Cilt
50
Sayı
1
