Üreme Sezonunda Doğum Gerçekleştiren Kangal Koyunlarına Erken Postpartum Süreçte Uygulanan farklı Senkronizasyon Yöntemlerinin Reproduktif Performans Üzerine Etkisi
Öz
Son yıllarda artan maliyetler koyun yetiştiricilerini oldukça fazla zorlamaktadır. Kangal koyunu yetiştiricileri ise süt ve koyunyünü üretiminden tamamen vazgeçmiş olup yegâne gelirlerini kuzu üretimi üzerine kurguladıkları için bu zorlu ortamda var oluş mücadelesi vermektedirler.
Bu çalışmada Kangal koyunlarında iyi kurgulanmış reproduktif yönetimler uygulanabilmesi için üreme sezonunda çiftleştirmelerin toplulaştırılması ve bir gebelikten maksimum verim elde etmek için farklı senkronizasyon metotları uygulanmıştır. Bu bağlamda çalışmanın materyalini mevsim dışı gebe kalmış (ilkbahar aylarında çiftleşmiş) Eylül- Ekim aylarında doğumunu gerçekleştirmiş ve kuzularını yaklaşık 60-75 gün emzirmiş multipar (birden fazla kez doğurmuş) 160 baş koyun ve çiftleştirmelerde kullanılan 16 baş koç oluşturmuştur. Grup 1’deki (n:60) deki hayvanlara 0.gün 1. PGF2α (263 µg Kloprostenol sodyum) enjeksiyonu yapılmış ve 9. Günde 2. PGF2α ile birlikte eş zamanlı olarak eCG (500 IU) enjeksiyonu yapılmıştır. Grup 2’deki (n:55) hayvanlara 0.gün eş zamanlı olarak PGF2α ve eCG enjeksiyonları yapılmış ve 7. Günde 2. PGF2α enjeksiyonu yapılmıştır. Grup 3’teki (n:37) hayvanlara ise 9 gün arayla çift doz PGF2α enjeksiyonu yapılmıştır. Bu uygulamaların östrüs gösterme, gebe kalma, çoğul gebe kalma, embriyonik ölüm, doğum sayısı, yavru sayısı ve verimlilik gibi reproduktif parametreler üzerine etkinlikleri değerlendirildi. Farklı senkronizasyon yöntemlerinin östrüs, gebelik, embriyonik ölüm, doğum ve yavru sayısı üzerine oluşturdukları fark istatistiki (p >0,05) olarak anlamlı bulunmadı. Grup 2'deki çoğul gebeliklerin Grup 3’e göre istatistiki anlamda yüksek bulundu (P=0,048). Gruplardaki gerçekleşen doğum başına düşen yavru sayılarına (verimlilik) bakıldığında Grup1, Grup 2 ve Grup 3’te sırasıyla 1,3333, 1,5278 ve 1,1667 şeklinde bulundu. İstatistiki değerlendirmede Grup 2’nin verimliliği Grup 3’ten belirgin şekilde yüksek bulundu (P = 0.03)
Bu sonuçlar ışığında Kangal ırkında standart 9 gün aralıklarla çift doz PGF2α uygulama aralığını 7 güne indirgenerek ilk uygulamada eCG kombinasyonu ile çoğul gebelik ve gebelik başına yavru verimliliğini artırılabildiği belirlenmiştir. Bu uygulamanın üreme sezonunda reproduktif verimi artıracak bir senkronizasyon metodu olabileceği kanaatine varıldı.
Anahtar Kelimeler
gebelik kangal koyun verimlilik pregnancy productivity sheep synchronization
Kaynakça
- Abecia, J. A., Forcada, F., & González-Bulnes, A. (2012). Hormonal control of reproduction in small ruminants. Animal reproduction science, 130(3-4), 173-179.
- Aydın, İ., Çelik, H. A., Şendağ, S., & Dinç, D. A. (2008). Koyunlarda Plasentomların Ultrasonografik Ölçümleri İle Plasentom Gelişimi Ve Gebelik Yaşının Belirlenmesi. Veteriner Bilimleri Dergisi. Eurasian Journal Of Veterinary Sciences, 24(1), 29-34.
- Aydin, I., Bulbul, T., Polat, E. S., & Yazar, E. (2010). Serum antioxidant status and adenosine deaminase activity during the gestational period of sheep. Revue de Médecine Vétérinaire, 161(11), 479-484.
- Azawi, O. I. (2008). Postpartum uterine infection in cattle. Animal reproduction science, 105(3-4), 187-208. Celik, H. A., Aydın, İ., Şendaǧ, S., & Dinc, D. A. (2005). Number of follicular waves and their effect on pregnancy rate in the cow. Reproduction in Domestic Animals, 40(2), 87-92.
- Contreras-Solis, I., Vasquez, B., Diaz, T., Letelier, C., Lopez-Sebastian, A., & Gonzalez-Bulnes, A. (2009). Efficiency of estrous synchronization in tropical sheep by combining short-interval cloprostenol-based protocols and “male effect”. Theriogenology, 71(6), 1018-1025.
- Doğruer, G., Ergün, Y., Karaca, F., Sarıbay, M. K., Ateş, C. T., Mehmet, A. K. Ö. Z., & Aydın, İ. (2015). The Effect Of Applications Of Ecg And Pgf2α At Different Times With Fga Containing Vaginal Sponges On Reproductive Parameters İn Ewes At Anestrous Season. Eurasian Journal Of Veterinary Sciences, 31(3), 158-162.
- Ferreira‐Silva, J. C., Basto, S. R. L., Tenório Filho, F., Moura, M. T., Silva Filho, M. L., & Oliveira, M. A. L. (2017). Reproductive performance of postpartum ewes treated with insulin or progesterone hormones in association with ram effect. Reproduction in Domestic Animals, 52(4), 610-616.
- Fierro, S., Gil, J., Viñoles, C., & Olivera-Muzante, J. (2013). The use of prostaglandins in controlling estrous cycle of the ewe: A review. Theriogenology, 79(3), 399-408.
- Fierro, S., Olivera-Muzante, J., Gil, J., & Viñoles, C. (2011). Effects of prostaglandin administration on ovarian follicular dynamics, conception, prolificacy, and fecundity in sheep. Theriogenology, 76(4), 630-639.
- Gonzalez-Bulnes, A., Veiga-Lopez, A., Garcia, P., Garcia-Garcia, R. M., Ariznavarreta, C., Sanchez, M. A., ... & Flores, J. M. (2005). Effects of progestagens and prostaglandin analogues on ovarian function and embryo viability in sheep. Theriogenology, 63(9), 2523-2534.
- Hameed, N., Khan, M. I. U. R., Zubair, M., & Andrabi, S. M. H. (2021). Approaches of estrous synchronization in sheep: Developments during the last two decades: A review. Tropical Animal Health and Production, 53(5), 1-10.
- Hasani, N., Ebrahimi, M., Ghasemi-Panahi, B., & HosseinKhani, A. (2018). Evaluating reproductive performance of three estrus synchronization protocols in Ghezel ewes. Theriogenology, 122, 9-13.
- Hogue, D. E. (1987). Frequent lambing systems. In New techniques in sheep production (pp. 57-63). Butterworth-Heinemann.
- Kivrak, M. B., Corum, O., Alkan, H., Atik, O., Aydin, I., & Uney, K. (2021). The pharmacokinetics of letrozole and its effect on gonadotropins in anestrous ewes. Theriogenology, 176, 225-232.
- Lewis, R. M., Notter, D. R., Hogue, D. E., & Magee, B. H. (1996). Ewe fertility in the STAR accelerated lambing system. Journal of Animal Science, 74(7), 1511-1522.
- Martemucci, G., & D’alessandro, A. G. (2010). Estrous and fertility responses of dairy ewes synchronized with combined short term GnRH, PGF2α and estradiol benzoate treatments. Small ruminant research, 93(1), 41-47.
- Martinez-Ros, P., Lozano, M., Hernandez, F., Tirado, A., Rios-Abellan, A., López-Mendoza, M. C., & Gonzalez-Bulnes, A. (2018). Intravaginal device-type and treatment-length for ovine estrus synchronization modify vaginal mucus and microbiota and affect fertility. Animals, 8(12), 226.
- Olivera-Muzante, J., Fierro, S., López, V., & Gil, J. (2011). Comparison of prostaglandin-and progesterone-based protocols for timed artificial insemination in sheep. Theriogenology, 75(7), 1232-1238.
- Scaramuzzi, R. J., & Martin, G. B. (1984). Pharmacological agents for manipulating oestrus and ovulation in the ewe. Reproduction in sheep: Australian Wool Corporation technical publication/supervising editors, DR Lindsay and DT Pearce.
- Sharkey, S., Callan, R. J., Mortimer, R., & Kimberling, C. (2001). Reproductive techniques in sheep. The Veterinary Clinics of North America. Food Animal Practice, 17(2), 435-55.
- Souza-Fabjan, J.M.G., Balaro, M.F.A., Bragança, G.M., Pinto, P.H.N., de Almeida, J.G., Moura, A.B.B., da Fonseca, J.F., and Brandão, F.Z., 2018. Use of two doses of cloprostenol in diferent intervals for estrus synchronization in hair sheep under tropical conditions. Tropical animal health and production, 50, 427-432
- Viñoles, C., Paganoni, B., Milton, J. T. B., Driancourt, M. A., & Martin, G. B. (2011). Pregnancy rate and prolificacy after artificial insemination in ewes following synchronisation with prostaglandin, sponges, or sponges with bactericide. Animal Production Science, 51(6), 565-569.
- Yu, X. J., Wang, J., & Bai, Y. Y. (2018). Estrous synchronization in ewes: The use of progestogens and prostaglandins. Acta Agriculturae Scandinavica, Section A—Animal Science, 68(4), 219-230.
- Yu, X., Bai, Y., Yang, J., Zhao, X., Zhang, L., & Wang, J. (2022). Comparison of Five Protocols of Estrous Synchronization on Reproductive Performance of Hu Sheep. Frontiers in Veterinary Science, 9.
The Effect on Reproductive Performance of Different Synchronization Methods Applied in Early Postpartum Process that Kangal Sheep Lambing in the Breeding Season
Öz
İn recent years, increased costs pushes the sheep breeders. As for Kangal sheep breeders, they completely given up milk and wool production. Because they build their only income on lamb reproduction , they are trying to existence in this tough environment. In this study, different synchronization methods were applied to aggregate the matings during the breeding season and to obtain maximum efficiency from one pregnancy in order to apply well-designed reproductive managements in Kangal sheep. In this context, the material of the study consisted of 160 multiparous (multiple-lambing) sheep and 16 rams used in mating, which conceived out of season (mated in spring), gave birth in September-October, and suckled their lambs for about 60-75 days. Animals in group 1 (n:60) were given 1st PGF2α (263 µg Cloprostenol sodium) injection on day 0, and eCG (500 IU) was injected simultaneously with 2nd PGF2α on day 9th. Animals in group 2 (n:55) were given simultaneous injections of PGF2α and eCG on day 0, and a second injection of PGF2α was administered on day 7. Animals in group 3 (n:37) were injected with a double dose of PGF2α every 9 days. The efficacy of these applications on reproductive parameters such as oestrus, conception, multiple conception, embryonic death, number of births, number of offspring and fertility were evaluated. The difference between different synchronization methods on estrus, pregnancy, embryonic death, birth and number of offspring was not statistically significant (p >0.05). Multiple pregnancies in Group 2 were statistically higher than Group 3 (P=0.048). Considering the number of lambs per birth (productivity) in the groups, it was found as 1.3333, 1.5278 and 1.1667 in Group1, Group 2 and Group 3, respectively. In the statistical evaluation, the productivity of Group 2 was found to be significantly higher than Group 3 (P = 0.03)
In the light of these results, it was determined that by reducing the double dose PGF2α application interval to 7 days with standard 9-day intervals in the Kangal breed, multiple pregnancy and lamb productivity per pregnancy could be increased with the combination of eCG in the first application. It was concluded that this application may be a synchronization method that will increase reproductive efficiency in the breeding season
Anahtar Kelimeler
Kaynakça
- Abecia, J. A., Forcada, F., & González-Bulnes, A. (2012). Hormonal control of reproduction in small ruminants. Animal reproduction science, 130(3-4), 173-179.
- Aydın, İ., Çelik, H. A., Şendağ, S., & Dinç, D. A. (2008). Koyunlarda Plasentomların Ultrasonografik Ölçümleri İle Plasentom Gelişimi Ve Gebelik Yaşının Belirlenmesi. Veteriner Bilimleri Dergisi. Eurasian Journal Of Veterinary Sciences, 24(1), 29-34.
- Aydin, I., Bulbul, T., Polat, E. S., & Yazar, E. (2010). Serum antioxidant status and adenosine deaminase activity during the gestational period of sheep. Revue de Médecine Vétérinaire, 161(11), 479-484.
- Azawi, O. I. (2008). Postpartum uterine infection in cattle. Animal reproduction science, 105(3-4), 187-208. Celik, H. A., Aydın, İ., Şendaǧ, S., & Dinc, D. A. (2005). Number of follicular waves and their effect on pregnancy rate in the cow. Reproduction in Domestic Animals, 40(2), 87-92.
- Contreras-Solis, I., Vasquez, B., Diaz, T., Letelier, C., Lopez-Sebastian, A., & Gonzalez-Bulnes, A. (2009). Efficiency of estrous synchronization in tropical sheep by combining short-interval cloprostenol-based protocols and “male effect”. Theriogenology, 71(6), 1018-1025.
- Doğruer, G., Ergün, Y., Karaca, F., Sarıbay, M. K., Ateş, C. T., Mehmet, A. K. Ö. Z., & Aydın, İ. (2015). The Effect Of Applications Of Ecg And Pgf2α At Different Times With Fga Containing Vaginal Sponges On Reproductive Parameters İn Ewes At Anestrous Season. Eurasian Journal Of Veterinary Sciences, 31(3), 158-162.
- Ferreira‐Silva, J. C., Basto, S. R. L., Tenório Filho, F., Moura, M. T., Silva Filho, M. L., & Oliveira, M. A. L. (2017). Reproductive performance of postpartum ewes treated with insulin or progesterone hormones in association with ram effect. Reproduction in Domestic Animals, 52(4), 610-616.
- Fierro, S., Gil, J., Viñoles, C., & Olivera-Muzante, J. (2013). The use of prostaglandins in controlling estrous cycle of the ewe: A review. Theriogenology, 79(3), 399-408.
- Fierro, S., Olivera-Muzante, J., Gil, J., & Viñoles, C. (2011). Effects of prostaglandin administration on ovarian follicular dynamics, conception, prolificacy, and fecundity in sheep. Theriogenology, 76(4), 630-639.
- Gonzalez-Bulnes, A., Veiga-Lopez, A., Garcia, P., Garcia-Garcia, R. M., Ariznavarreta, C., Sanchez, M. A., ... & Flores, J. M. (2005). Effects of progestagens and prostaglandin analogues on ovarian function and embryo viability in sheep. Theriogenology, 63(9), 2523-2534.
- Hameed, N., Khan, M. I. U. R., Zubair, M., & Andrabi, S. M. H. (2021). Approaches of estrous synchronization in sheep: Developments during the last two decades: A review. Tropical Animal Health and Production, 53(5), 1-10.
- Hasani, N., Ebrahimi, M., Ghasemi-Panahi, B., & HosseinKhani, A. (2018). Evaluating reproductive performance of three estrus synchronization protocols in Ghezel ewes. Theriogenology, 122, 9-13.
- Hogue, D. E. (1987). Frequent lambing systems. In New techniques in sheep production (pp. 57-63). Butterworth-Heinemann.
- Kivrak, M. B., Corum, O., Alkan, H., Atik, O., Aydin, I., & Uney, K. (2021). The pharmacokinetics of letrozole and its effect on gonadotropins in anestrous ewes. Theriogenology, 176, 225-232.
- Lewis, R. M., Notter, D. R., Hogue, D. E., & Magee, B. H. (1996). Ewe fertility in the STAR accelerated lambing system. Journal of Animal Science, 74(7), 1511-1522.
- Martemucci, G., & D’alessandro, A. G. (2010). Estrous and fertility responses of dairy ewes synchronized with combined short term GnRH, PGF2α and estradiol benzoate treatments. Small ruminant research, 93(1), 41-47.
- Martinez-Ros, P., Lozano, M., Hernandez, F., Tirado, A., Rios-Abellan, A., López-Mendoza, M. C., & Gonzalez-Bulnes, A. (2018). Intravaginal device-type and treatment-length for ovine estrus synchronization modify vaginal mucus and microbiota and affect fertility. Animals, 8(12), 226.
- Olivera-Muzante, J., Fierro, S., López, V., & Gil, J. (2011). Comparison of prostaglandin-and progesterone-based protocols for timed artificial insemination in sheep. Theriogenology, 75(7), 1232-1238.
- Scaramuzzi, R. J., & Martin, G. B. (1984). Pharmacological agents for manipulating oestrus and ovulation in the ewe. Reproduction in sheep: Australian Wool Corporation technical publication/supervising editors, DR Lindsay and DT Pearce.
- Sharkey, S., Callan, R. J., Mortimer, R., & Kimberling, C. (2001). Reproductive techniques in sheep. The Veterinary Clinics of North America. Food Animal Practice, 17(2), 435-55.
- Souza-Fabjan, J.M.G., Balaro, M.F.A., Bragança, G.M., Pinto, P.H.N., de Almeida, J.G., Moura, A.B.B., da Fonseca, J.F., and Brandão, F.Z., 2018. Use of two doses of cloprostenol in diferent intervals for estrus synchronization in hair sheep under tropical conditions. Tropical animal health and production, 50, 427-432
- Viñoles, C., Paganoni, B., Milton, J. T. B., Driancourt, M. A., & Martin, G. B. (2011). Pregnancy rate and prolificacy after artificial insemination in ewes following synchronisation with prostaglandin, sponges, or sponges with bactericide. Animal Production Science, 51(6), 565-569.
- Yu, X. J., Wang, J., & Bai, Y. Y. (2018). Estrous synchronization in ewes: The use of progestogens and prostaglandins. Acta Agriculturae Scandinavica, Section A—Animal Science, 68(4), 219-230.
- Yu, X., Bai, Y., Yang, J., Zhao, X., Zhang, L., & Wang, J. (2022). Comparison of Five Protocols of Estrous Synchronization on Reproductive Performance of Hu Sheep. Frontiers in Veterinary Science, 9.
Ayrıntılar
| Birincil Dil | Türkçe |
|---|---|
| Konular | Veteriner Cerrahi |
| Bölüm | Araştırma Makalesi |
| Yazarlar | |
| Erken Görünüm Tarihi | 7 Ocak 2023 |
| Yayımlanma Tarihi | 11 Ocak 2023 |
| Yayımlandığı Sayı | Yıl 2022Cilt: 4 Sayı: 2 |
