Determination of fertility in Merino sheep, growth and survival characteristics in lambs under breeder conditions

Murat Çelebi; Hacer Tüfekci

doi:10.31015/jaefs.2026.1.19

Determination of fertility in Merino sheep, growth and survival characteristics in lambs under breeder conditions

Abstract

The aim of this study was to determine determine fertility in Merino sheep under breeding conditions and growth and survival characteristics in lambs. The research was carried out over three years, during which 350 Merinos sheep and 409 Merinos lambs were used. In the study, the lambing rates for the examined fertility characteristics were determined to be 95.7%, 94.2%, and 95.2%, respectively; while the infertility rates were 4.3%, 5.8%, and 4.8%. The percentage of single births was 80.4%, 77.8%, and 74.3%, while the percentage of twin births was 19.6%, 22.2%, and 25.7%. The fecundity and litter sizes, which are parameters for fertility, were calculated as 1.15, 1.15, and 1.20, respectively and 1.20, 1.22, and 1.26, respectively. According to the age group of the sheep, the birth weights of lambs were 3.31 kg, 3.19 kg and 3.38 kg for sheep aged 2–3 years, 4–5 years and 6 years and older, respectively. According to sex and birth type, the lamb birth weights were 3.20 kg for female lambs, 3.45 kg for male lambs, 3.65 kg for single-born lambs, and 2.94 kg for twin-born lambs. The results indicate that both the fertility performance of the flock and the lamb survivability rate are satisfactory under the breeding conditions studied.

Keywords

Merino, Breeder conditions, Fertility, Lambing rate, Survival

Supporting Institution

There is no project funding for this research.

Thanks

This study was produced from Murat ÇELEBİ’s Master’s thesis.

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Details

Primary Language

English

Subjects

Animal Reproduction and Breeding

Journal Section

Research Article

Authors

Murat Çelebi
0009-0005-5318-0740
Türkiye

Hacer Tüfekci ^*
0000-0003-2272-4088
Türkiye

Early Pub Date

March 19, 2026

Publication Date

March 19, 2026

Submission Date

January 3, 2026

Acceptance Date

March 3, 2026

Published in Issue

Year 2026 Volume: 10 Number: 1

DOI

https://doi.org/10.31015/jaefs.2026.1.19

IZ

https://izlik.org/JA86RX37NW

APA

Çelebi, M., & Tüfekci, H. (2026). Determination of fertility in Merino sheep, growth and survival characteristics in lambs under breeder conditions. International Journal of Agriculture Environment and Food Sciences, 10(1), 174-182. https://doi.org/10.31015/jaefs.2026.1.19

AMA

1.Çelebi M, Tüfekci H. Determination of fertility in Merino sheep, growth and survival characteristics in lambs under breeder conditions. int. j. agric. environ. food sci. 2026;10(1):174-182. doi:10.31015/jaefs.2026.1.19

Chicago

Çelebi, Murat, and Hacer Tüfekci. 2026. “Determination of Fertility in Merino Sheep, Growth and Survival Characteristics in Lambs under Breeder Conditions”. International Journal of Agriculture Environment and Food Sciences 10 (1): 174-82. https://doi.org/10.31015/jaefs.2026.1.19.

EndNote

Çelebi M, Tüfekci H (March 1, 2026) Determination of fertility in Merino sheep, growth and survival characteristics in lambs under breeder conditions. International Journal of Agriculture Environment and Food Sciences 10 1 174–182.

IEEE

[1]M. Çelebi and H. Tüfekci, “Determination of fertility in Merino sheep, growth and survival characteristics in lambs under breeder conditions”, int. j. agric. environ. food sci., vol. 10, no. 1, pp. 174–182, Mar. 2026, doi: 10.31015/jaefs.2026.1.19.

ISNAD

Çelebi, Murat - Tüfekci, Hacer. “Determination of Fertility in Merino Sheep, Growth and Survival Characteristics in Lambs under Breeder Conditions”. International Journal of Agriculture Environment and Food Sciences 10/1 (March 1, 2026): 174-182. https://doi.org/10.31015/jaefs.2026.1.19.

JAMA

1.Çelebi M, Tüfekci H. Determination of fertility in Merino sheep, growth and survival characteristics in lambs under breeder conditions. int. j. agric. environ. food sci. 2026;10:174–182.

MLA

Çelebi, Murat, and Hacer Tüfekci. “Determination of Fertility in Merino Sheep, Growth and Survival Characteristics in Lambs under Breeder Conditions”. International Journal of Agriculture Environment and Food Sciences, vol. 10, no. 1, Mar. 2026, pp. 174-82, doi:10.31015/jaefs.2026.1.19.

Vancouver

1.Murat Çelebi, Hacer Tüfekci. Determination of fertility in Merino sheep, growth and survival characteristics in lambs under breeder conditions. int. j. agric. environ. food sci. 2026 Mar. 1;10(1):174-82. doi:10.31015/jaefs.2026.1.19

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Determination of fertility in Merino sheep, growth and survival characteristics in lambs under breeder conditions

Determination of fertility in Merino sheep, growth and survival characteristics in lambs under breeder conditions

Abstract

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Supporting Institution

Thanks

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Details

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Publication Date

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Published in Issue

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