| Yazarlar |
Doç. Dr. Mushap KURU
Kafkas Üniversitesi, Türkiye |
Dr. Öğr. Üyesi Buket BOĞA KURU
Kafkas Üniversitesi, Türkiye |
Prof. Dr. Cihan KAÇAR
Kafkas Üniversitesi, Türkiye |
Dr. Öğr. Üyesi Murat Can DEMİR
Kafkas Üniversitesi, Türkiye |
Nebi Çetin
Van Yüzüncü Yıl Üniversitesi, Türkiye |
| Özet |
| This study aimed to determine the effects of different lengths of progesterone and equine chorionic gonadotropin (eCG) treatment on reproductive performance during the non-breeding season in ewes. Progesterone-impregnated sponges were inserted intravaginally for 7 d in Group 1 (G1, n = 24), 9 d in Group 2 (G2, n = 25), and 11 d in Group 3 (G3, n = 24). On the day of sponge removal, eCG (350 IU) was injected and 24 h later the ewes were exposed to rams. Pregnancy was diagnosed by transrectal ultrasonography 30 ± 3 d after mating. Oestrus symptoms of G2 and G3 started earlier than G1, but there was only a significant difference between G1 and G3 (P = 0.013). In G1, G2, and G3, the oestrus responses were 100%, 100%, and 95.8%, pregnancy rates were 79.2%, 72%, and 75%, lambing rates were 79.8%, 72%, and 75%, litter sizes were 2.5, 2.2, and 2.4, and multiple birth rates were 86.7%, 80%, and 85.7%, respectively (P > 0.05). In conclusion, the short-term progesterone-impregnated sponge and eCG treatment provided excellent oestrus induction. The effects of different days (7, 9, or 11) of progesterone treatment on reproductive indicators were similar; therefore, the stress caused by the inserted sponge can be reduced by short-term use. |
| Anahtar Kelimeler |
| Oestrus induction | pregnancy rate | sheep | short-term | sponge |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | ACTA VETERINARIA BRNO |
| Dergi ISSN | 0001-7213 |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q4 |
| Makale Dili | İngilizce |
| Basım Tarihi | 01-2022 |
| Cilt No | 91 |
| Sayı | 3 |
| Sayfalar | 243 / 250 |
| Doi Numarası | 10.2754/avb202291030243 |
| Makale Linki | https://actavet.vfu.cz/91/3/0243/ |
| Atıf Sayıları | |
| WoS | 6 |
| SCOPUS | 7 |
| Google Scholar | 14 |
