Dergiler / Turkish Journal of Veterinary and Animal Sciences / 2013 / Cilt: 37 - Sayı: 1

Prevention of embryonic death using different hormonal treatments in ewes

Sayfa
6–8
Yayın Tarihi
2013-01-01
DOI
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

In conclusion, the application of GnRH or FGA on days 4 and 12 after mating was found to be effective in preventing embryonic death in ewes.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:The purpose of this study was to evaluate different treatment protocols to prevent embryonic death in ewes.
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Temel Bulgular & Veri:A total of 180 Akkaraman crossbred ewes and 10 healthy rams were used as material.
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Sonuç & Katkı:In conclusion, the application of GnRH or FGA on days 4 and 12 after mating was found to be effective in preventing embryonic death in ewes.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Key words: Ewe · hormonal treatment · embryonic death

Özet

The purpose of this study was to evaluate different treatment protocols to prevent embryonic death in ewes. A total of 180 Akkaraman crossbred ewes and 10 healthy rams were used as material. The ewes were divided into 3 equal groups, with each of the 3 groups then separated into 3 subgroups. Ewes in estrus, determined with teaser rams, were exposed to mating. Three different treatment protocols of gonadotropin-releasing hormone (GnRH) analog (buserelin, intramuscularly) at a dose of 20 µg, vaginal sponges containing 30 mg fluorogestone acetate (FGA), and saline at a dose of 1 mL (control, intramuscularly) were applied on days 4, 12, and 16, respectively, for each subgroup after mating. No significant differences were observed in the pregnancy or multiple birth rates among any of the treatment groups. In the groups treated on days 4 and 12 after mating, the hormonal treatments gave lower rates of embryonic death compared to the control group (P < 0.05). In conclusion, the application of GnRH or FGA on days 4 and 12 after mating was found to be effective in preventing embryonic death in ewes.

Abstract

The purpose of this study was to evaluate different treatment protocols to prevent embryonic death in ewes. A total of 180 Akkaraman crossbred ewes and 10 healthy rams were used as material. The ewes were divided into 3 equal groups, with each of the 3 groups then separated into 3 subgroups. Ewes in estrus, determined with teaser rams, were exposed to mating. Three different treatment protocols of gonadotropin-releasing hormone (GnRH) analog (buserelin, intramuscularly) at a dose of 20 µg, vaginal sponges containing 30 mg fluorogestone acetate (FGA), and saline at a dose of 1 mL (control, intramuscularly) were applied on days 4, 12, and 16, respectively, for each subgroup after mating. No significant differences were observed in the pregnancy or multiple birth rates among any of the treatment groups. In the groups treated on days 4 and 12 after mating, the hormonal treatments gave lower rates of embryonic death compared to the control group (P < 0.05). In conclusion, the application of GnRH or FGA on days 4 and 12 after mating was found to be effective in preventing embryonic death in ewes.

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Bu Makaleye Atıf Yap

ATAMAN, M. B., AKÖZ, M., SARIBAY, M. K., ERDEM, H., BUCAK, M. N. (2013). Prevention of embryonic death using different hormonal treatments in ewes. Turkish Journal of Veterinary and Animal Sciences, Cilt: 37 - Sayı: 1, 6–8. https://ajindex.com/articles/122240

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Kaynakça (13)

  1. Bolet, G.: Timing and extent of embryonic mortality in pigs, sheep and goats; genetic variability. In: Sreenan J.M., Diskin, M.G., Eds. Embryonic Mortality in Farm Animals. Martinus Nijhoff, The Hague, 1986; 12–43.
  2. Michels, H., Vanmontfort, D., Dewil, E., Decuypere, E.: Genetic variation of prenatal survival in relation to ovulation rate in sheep: a review. Small Rumin. Res., 1998; 29: 129–142.
  3. Jainudeen, M.R., Hafez, E.S.E.: Reproduction failure in females. In: Hafez, E.S.E., Ed. Reproduction in Farm Animals. 6th ed., Lea & Febiger, Philadelphia, 1993; 261–286.
  4. Nancarrow, C.D.: Embryonic mortality in the ewe and doe. In: Zavy, M.T., Geisart, R.D., Eds. Embryonic Mortality in Domestic Species. CRC Press,
  5. Boca Raton, FL, USA, 1994; 79– Beck, N.F.G., Peters, A.R., Williams, S.P.: The effect of GnRH agonist (buserelin) treatment on day 12 post-mating on the reproductive performance of ewes. Anim. Prod., 1994; 58: 243–247.
  6. Thatcher, W.W., Moreira, F., Santos, J.E.P., Mattos, R.C., Lopes, F.L., Pancarci, S.M., Risco, C.A.: Effects of hormonal treatments on reproductive performance and embryo production. Theriogenology, 2001; 55: 75–89.
  7. Cam, M.A., Kuran, M., Yildiz, S., Selcuk, E.: Fetal growth and reproductive performance in ewes administrated GnRH agonist on day 12 post-mating. Anim. Reprod. Sci., 2002; 72: 73– Cam, M.A., Kuran, M.: GnRH agonist treatment on day 12 post-mating to improve reproductive performance in goats. Small Rum. Res., 2004; 52: 169–172.
  8. Bazer, F.W., Ott, T.L., Spencer, T.E.: Maternal recognition of pregnancy: comparative aspects: a review. Placenta, 1998; 12: 375–386.
  9. Wilmut, I., Sales, D.I., Ashworth, C.J.: Maternal and embryonic factors associated with prenatal loss in mammals. J. Reprod. Fertil., 1986; 76: 851–864.
  10. Willingham, T., Shelton, M., Thompson, P.: An assessment of reproductive wastage in sheep. Theriogenology, 1986; 26: 179–188.
  11. Thatcher, W.W., Staples, C.R., Danet-Desnoyers, G., Oldick, B., Schmitt, E.P.: Embryo health and mortality in sheep and cattle. J. Anim. Sci., 1994; 72: 16–30.
  12. Kleemann, D.O., Walker, S.K.: Fertility in South Australian commercial Merino flocks: sources of reproductive wastage. Theriogenology, 2005; 63: 2075–2088.
  13. Foote, W.D., Gooch, L.D., Pope, A.L., Casida, L.E.: The maintenance of early pregnancy the ovariectomized ewe by injection of ovarian hormones. J. Anim. Sci., 1957; 16: 986–989.