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STOCK-RAISING AND VETERINARY

CHANGES IN THE DIAMETER OF DIFFERENT MUSCLE FIBERS IN SARYARKA FAT-TAILED SHEEP (ZHANAARKA INTRABREED TYPE)

Ainur Orakbaeva 1 , Sholpan Adylkanova 1 , Tuleukhan Sadykulov 1 , Bibigul Sansyzbaeva 1 , Kırıkçı Koray 2

1 NJSC «Kazakh National Agrarian Research University» ; 2 Ahi Evran University

doi.org/10.37884/2-2025/08 pp. 82-89 Admitted 16.04.2025 Published 30.06.2025

Abstract

The article presents the results of a study on the formation of meat productivity in lambs of the Saryarka fat-tailed sheep breed raised at the "Zhenis" breeding farm. The authors emphasize that, in order to improve the early maturity and meat quality of this breed, the initial stage of the breeding program involved introductory crossbreeding using rams of the Edilbay breed. At the subsequent stage, rams of the Akkarabas intrabreed type of the Kazakh coarse-wooled fat-tailed breed were used.

This study presents the results of research on changes in the diameter of various types of muscle fibers in Saryarka fat-tailed sheep of the Zhanaarka intrabreed type at different stages of postnatal ontogenesis. The research aims to identify morphological features of muscle tissue growth and development, which determine the meat productivity of the animals. The analysis took into account age-related changes and sex differences. Special attention was paid to the comparative assessment of the diameter of red, intermediate, and white muscle fibers in key anatomical regions. The obtained data provide a deeper understanding of muscle mass development dynamics in this breed and serve as a foundation for improving breeding and genetic programs aimed at increasing meat productivity and carcass quality.

Biomaterial samples were taken from the longissimus dorsi muscle, which is the most significant in terms of meat yield. Histological processing and microscopic analysis were performed using standard methodologies, followed by digital data processing in Image, Past software.

 

 

fat-tailed sheep muscle fibers diameter morphology Zhanaarka type meat productivity histology Saryarka breed

01 Introduction

The full text of the article is available for download in PDF format on the right panel.

02 References

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Citation Links

[1]2025. CHANGES IN THE DIAMETER OF DIFFERENT MUSCLE FIBERS IN SARYARKA FAT-TAILED SHEEP (ZHANAARKA INTRABREED TYPE). Izdenister natigeler. 2 (106) (Jun. 2025), 82–89. DOI:https://doi.org/10.37884/2-2025/08.
(1)CHANGES IN THE DIAMETER OF DIFFERENT MUSCLE FIBERS IN SARYARKA FAT-TAILED SHEEP (ZHANAARKA INTRABREED TYPE). Izdenister natigeler 2025, No. 2 (106), 82-89. https://doi.org/10.37884/2-2025/08.
CHANGES IN THE DIAMETER OF DIFFERENT MUSCLE FIBERS IN SARYARKA FAT-TAILED SHEEP (ZHANAARKA INTRABREED TYPE). (2025). Izdenister Natigeler, 2 (106), 82-89. https://doi.org/10.37884/2-2025/08
CHANGES IN THE DIAMETER OF DIFFERENT MUSCLE FIBERS IN SARYARKA FAT-TAILED SHEEP (ZHANAARKA INTRABREED TYPE). Izdenister natigeler, [S. l.], n. 2 (106), p. 82–89, 2025. DOI: 10.37884/2-2025/08. Disponível em: https://agrosoil.kaznaru.edu.kz/index.php/research/article/view/945. Acesso em: 15 sep. 2026.
“CHANGES IN THE DIAMETER OF DIFFERENT MUSCLE FIBERS IN SARYARKA FAT-TAILED SHEEP (ZHANAARKA INTRABREED TYPE)”. 2025. Izdenister Natigeler, no. 2 (106) (June): 82-89. https://doi.org/10.37884/2-2025/08.
“CHANGES IN THE DIAMETER OF DIFFERENT MUSCLE FIBERS IN SARYARKA FAT-TAILED SHEEP (ZHANAARKA INTRABREED TYPE)” (2025) Izdenister natigeler, (2 (106), pp. 82–89. doi:10.37884/2-2025/08.
[1]“CHANGES IN THE DIAMETER OF DIFFERENT MUSCLE FIBERS IN SARYARKA FAT-TAILED SHEEP (ZHANAARKA INTRABREED TYPE)”, Izdenister natigeler, no. 2 (106), pp. 82–89, Jun. 2025, doi: 10.37884/2-2025/08.
“CHANGES IN THE DIAMETER OF DIFFERENT MUSCLE FIBERS IN SARYARKA FAT-TAILED SHEEP (ZHANAARKA INTRABREED TYPE)”. Izdenister Natigeler, no. 2 (106), June 2025, pp. 82-89, https://doi.org/10.37884/2-2025/08.
“CHANGES IN THE DIAMETER OF DIFFERENT MUSCLE FIBERS IN SARYARKA FAT-TAILED SHEEP (ZHANAARKA INTRABREED TYPE)”. Izdenister natigeler, no. 2 (106) (June 30, 2025): 82–89. Accessed September 15, 2026. https://agrosoil.kaznaru.edu.kz/index.php/research/article/view/945.
1.CHANGES IN THE DIAMETER OF DIFFERENT MUSCLE FIBERS IN SARYARKA FAT-TAILED SHEEP (ZHANAARKA INTRABREED TYPE). Izdenister natigeler [Internet]. 2025 Jun. 30 [cited 2026 Sep. 15];(2 (106):82-9. Available from: https://agrosoil.kaznaru.edu.kz/index.php/research/article/view/945
1.CHANGES IN THE DIAMETER OF DIFFERENT MUSCLE FIBERS IN SARYARKA FAT-TAILED SHEEP (ZHANAARKA INTRABREED TYPE). Izdenister natigeler. 2025;(2 (106):82-89. doi:10.37884/2-2025/08