Journals / Ege Üniversitesi Ziraat Fakültesi Dergisi / 2001 / Cilt: 38 - Sayı: 2-3

Experiments on the control of reproduction in the anoestrus ewe with progesterone and pregnant mare serum II. Ceasetion of the seasonal anoestrus

Anestrus koyunlarda progesteron ve pregnant mare serum ile üremenin kontrolü üzerine araştırmalar II. Mevsimsel anestrusun giderilmesi

Pages
87–94
Publication Date
2022-10-17
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The conception rate was 63%; 11 ewes lambed and 15 lambs were born.

📌 3 Key Takeaways

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Objective & Hypothesis:Seasonal anestrus plays major role in the restriction of the sheep products.
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Key Findings & Data:Inducing the estrus at 40 ewes (21 Kıvırcık, 19 Awassi) it was aimed to get lambing before three months of usual breeding season (September-October) in June at beginning of the seasonal anestrus (December-January), In this way it was aimed to increased the lamb production. 'Pregnant Mare Serum was used to stimulate the improving of the follicle as a gonadotropic hormone like FSH.
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Conclusion & Impact:The conception rate was 63%; 11 ewes lambed and 15 lambs were born.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Seasonal anestrus plays major role in the restriction of the sheep products. To avoid this unfertile period this experiment was designed. Inducing the estrus at 40 ewes (21 Kıvırcık, 19 Awassi) it was aimed to get lambing before three months of usual breeding season (September-October) in June at beginning of the seasonal anestrus (December-January), In this way it was aimed to increased the lamb production. 'Pregnant Mare Serum was used to stimulate the improving of the follicle as a gonadotropic hormone like FSH. The estrus rate was 92,5% at the beginning of the seasonal anestrus. Kıvırcık sheep which exibiting estrus as a rate of 85,7% were not joined but observed for the continuity on the ovarian activity could be got by hormonal effect. All awassi ewes exibited estrus after hormonal treatment and they were mated with their own rams. The conception rate was 63%; 11 ewes lambed and 15 lambs were born.

Özet

Araştırmada koyunların mevsimsel anestrus periyodunu gidermek amacı ile exogen hormon uygulanmıştır. Bu amaçla follikül uyarıcı etkisinden yararlanılan PMS (gebe kısrak serumu) kullanılmıştır. Kasım ayı başında hormon uygulanan 21 Kıvırcık koyunu ile 19 İvesi koyundan; 1200 İ.Ü. tek injeksiyon PMS ile %92,5 kızgınlık elde edilmiştir. Kızgınlık gösteren (%85,7) Kıvırcık koyunları koça verilmeyerek, ovaryum aktivitesinin devamlılığı izlenmiştir. Bu koyunların %SO si bir siklus sonra tekrar kızgınlık göstermiştir. İvesi koyunlarının hormon uygulamasından sonra tamamı kızgınlık göstermiş, %63 ü gebe kalmıştır.

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Cite This Article

DEMİRÖREN, E. (2022). Experiments on the control of reproduction in the anoestrus ewe with progesterone and pregnant mare serum II. Ceasetion of the seasonal anoestrus. Ege Üniversitesi Ziraat Fakültesi Dergisi, Cilt: 38 - Sayı: 2-3, 87–94. https://ajindex.com/articles/496595

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References (3)

  1. AŞKIN, Y., 1984.
  2. Yayınlanmamış araştırma sonuçları, Ankara 2. AŞKIN, Y., 1982. Akkaraman ve Anadolu Merinosu koyunlarında ekosogen hormon kullanarak kızgınlığın senkronizasyonu ve döl veriminin denetimi olanakları. Doçentlik tezi. Ankara Üniversitesi Zir. Fak. (Çoğaltım) 3. COLE, H. H., ve MILLER, R. F. 1933. Artificial induction of ovulation and oestrus in the ewe during anoestrus. A. J. Physiol.,104: 165-171 (A.B.A.1:100). 4. DÜZGÜNEŞ O. 1967. Dünya ve Türkiye koyunculuğunda gelişme yönleri. A. Ü. Zir. Fak. Yıllığı. Yıl. 17. Fasikül 3, 4 den ayrı basım. 5. DUTT, R. H. 1953. Induction of estrus and ovulation in anestrual ewes by use of progesterone and PMS. J. Anim. Sci., 12:515-523. (A.B.A.,21, N:1779). 6. GORDON, I., 1958. The use of progesterone and serum gonadotrophin (PMS) in the control of fertility in sheep. 11. Studies in the extra seasonal production of lambs. J. Agric. Sci. Camb. 50:l52-197. (A.B.A.26, NO:1432). 7. GORDON, I, 1963-a. The induction of pregnancy in the anoestrus ewe by hormonal therapy.11. Progesterone-Pregnant mare serum applications in anoestrus. J.Agric.Sci.Camb.,60:43-46 (A.B.A.,31.NO: 2156) 8. GORDON, I.1963-b. The induction of pregnancy in the anoestrus ewe by hormonal therapy. J.Agric.Sci.,Camb.,6O:67-70.(A.B.A.31, No:2156) 9. HULET.C.V. and FOOTE.1967. Physiological factors affecting frequency and rate of lambing U.S. Department of agriculture and Utah State University. 10. HUNTER.G.L. 1968-a Increasing the frequency of pregnancy in sheep. I. Some factors affecting rebreeding during the post partum period. A.B.A., Vol.36, NO:3:347-378 11. HUNTER G.L:1968-b Increasing the frequency of pregnancy in sheep. II. Artificial control of rebreeding and problems of conception and maintenance of pregnancy during the post partum period. A.B.A. Vol. 36 No:4:533-553 12. HUTCHINSON,J.S.H. 1964 The control of oestsrus and ovulation in the ewe with gonadotrophins. Veterinarian, Ox: 2:137-140 13. KAYMAKÇI, M., SÖNMEZ, R., 1996.
  3. İleri koyun yetiştiriciliği, E.Ü. Basımevi. 14. KAYMAKÇI, M., 1979. Çeşitli genetik yapıdaki koyunlarda döl veriminin arttırılması ve doğumların senkronizasyonu üzerine araştırmalar. Doçentlik tezi (Çoğaltım). 15. LAMMING. G.E. 1961. The use of hormones to control the fertility of farm animals. Proc. R. Soc. Had. 54:987-992 16. LAMOND, D.R. 1964. Synchronization of ovarian cycles in sheep and cattle. A.B.A. Vol. 32, No.3:269-285. 17. LEES,J.L. 1966. Inhibitory effect of lactation on the breeding activity of ewe