TR
EN
The Effects of Progesterone and Estrogen Hormone Levels on Some Reproductive Characteristics of The Akkaraman Sheep
Abstract
In this study, progesterone and estrogen hormone levels of Akkaraman sheep and their effects on some reproductive traits were investigated. The data obtained, from 31 ewes, as 90.32% for lambing, 53.57% for a single birth, 46.42% for twinning, 132.25% for lamb production and 1.46 for litter size. Between the first and second estrus, progesterone levels were found to be between 3.69-12.20 ng/ml for singles and 3.04-10.44 ng/ml for twins; estrogen levels were determined to be between 39.40-84.03 pg/ml for singles and 52.44-72.77 pg
ml for twins. The equivalent values at anestrus period of progesterone were
0.20-10.20 ng/ml, and estrogen levels were 6.30-169.60 pg/ml. The effects of
birth type on estrogen level were not-significant, while progesterone levels
were determined to be significant on the second and third days before the
second estrus (P<0.05 and P<0.001). In conclusion, least square means and
standard errors and differences between maximum and minimum progesterone
hormone levels were similar to those of prolific breeds. Estrogen levels were
found lower than prolific breeds but were higher than non-prolific breeds. Therefore,
Akkaraman breed can be foreseen as a combine prolific breed.
Keywords
Supporting Institution
Scientific and Technological Research Council of Turkey-TUBITAK
Project Number
112O342
Thanks
This article was produced from the PhD thesis of the first author with the consultancy of the second author and the study was supported by the Scientific and Technological Research Council of Turkey-TUBITAK (project number: 112O342). An oral presentation produced from the same thesis tittled “Investigation of Some Reproductive Characteristics and Progesterone Levels of Akkaraman Sheep” was presented at the International Congress on Advances in Veterinary Sciences & Technics (ICAVST) in Bosnia and Herzegovina and printed as full text in Book of Abstracts p:218-224, 24-29th August 2016.
References
- Akçapınar H 2000. Koyun Yetiştiriciliği 2. Baskı, ISBN: 975-96978-1-5, TR: İsmat matbaası.
- Akçapinar H, Kadak R 1982. The effects of some factors on the duration of pregnancy and birth weight in Akkaraman and Morkaraman sheep breeds. Vet J Ankara Univ 29: 392-400.
- Akçapınar H, Kadak R, Odabaşioğlu F 1982. Comparative investigations on fertility and milk yield of Morkaraman and Kangal-Akkaraman sheep, Vet J Ankara Univ 29: 379-391.
- Akçapınar H, Özbeyaz C, Ünal N, Avci M 2000. the possibilities of developing dam and sire lines using Akkaraman, Sakız and Kıvırcık sheep breeds for lamb production I. Fertility in Akkaraman sheep, survival rate and growth characteristics of Sakız x Akkaraman F1 and Kıvırcık x Akkaraman F1 Lambs, Turk J Vet Anim Sci 24: 71-79.
- Atasoy F, Ünal N, Akçapinar H, Mundan D 2003. Some production traits of Karayaka and Bafra (Chios x Karayaka B1) sheep. Turk J Vet Anim Sci 27: 259-264.
- Ali A, Derar R, Hussein H 2006. Seasonal variation of the ovarian follicular dynamics and luteal functions of sheep in the subtropics. Theriogenology 66: 463-469.
- Ali A, Hayder M 2008. Seasonal variation of reproductive performance, foetal development and progesterone concentrations of sheep in the subtropics. Reprod Domest Anim 43: 730-734.
- Arsoy D, Sağmanlıgil V 2018. Reproductive cycles in white Karaman ewes: comparison of ovarian hormone secretion and reproductive behavior in non-pregnant and pregnant ewes in semi-intensive conditions. Acta Scientiarum 10.4025/actascianimsci.v40i1.39908.
Details
Primary Language
English
Subjects
Agricultural, Veterinary and Food Sciences
Journal Section
Research Article
Publication Date
December 31, 2019
Submission Date
June 27, 2019
Acceptance Date
August 21, 2019
Published in Issue
Year 2019 Volume: 22
APA
Kocakaya, A., & Özbeyaz, C. (2019). The Effects of Progesterone and Estrogen Hormone Levels on Some Reproductive Characteristics of The Akkaraman Sheep. Kahramanmaraş Sütçü İmam Üniversitesi Tarım Ve Doğa Dergisi, 22, 424-430. https://doi.org/10.18016/ksutarimdoga.vi.583400
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