Research Article

The Effects of Progesterone and Estrogen Hormone Levels on Some Reproductive Characteristics of The Akkaraman Sheep

Volume: 22 December 31, 2019
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

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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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