EN
TR
Modeling of Native Sheep Breeds in Türkiye by Years with Nonlinear Mathematical Models
Abstract
This research aims to model the changes over time regarding the data on the number of breeds (thousands piece) of native sheep breeds (Karaman, İvesi, Dağlıç, Kıvırcık, Sakız, Karakaya, Ramlıç, Pırlak, Pırıt, Polatlı, Karya, Asaf, Malya, Bafra, Menemen, Tahirova, Koçeri, Zom, Karakaş, Eşme, Norduz, Gökçeada, Acıpayam, Hemşin, Herik, Tuj, Karagül) published by Turkish Statistical Institute (TUIK) between 2000-2023. In the study, these data were estimated using 12 different models (Richard, Gompertz, Gamma, Orskov, McNally, Brody, Weibull, Quadratic, Wood, Wilmink, Cubic Piecewise, Cubic). The accuracy of the models was evaluated using statistical measures such as mean square error, adjusted coefficient of determination, accuracy and bias factors, Akaike information criterion, adjusted Akaike information criterion and Bayesian information criterion. The results showed that the Wilmink model provided the most appropriate prediction model by obtaining the lowest values. These findings emphasize the importance of correct model selection and it is recommended that these models be examined in more detail with longer-term data in future studies
Keywords
References
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Details
Primary Language
English
Subjects
Statistical Analysis
Journal Section
Research Article
Publication Date
December 29, 2025
Submission Date
July 3, 2025
Acceptance Date
November 8, 2025
Published in Issue
Year 2025 Volume: 11 Number: 2
APA
Şahin, M., & Gök, İ. (2025). Modeling of Native Sheep Breeds in Türkiye by Years with Nonlinear Mathematical Models. International Journal of Pure and Applied Sciences, 11(2), 527-533. https://doi.org/10.29132/ijpas.1734102
AMA
1.Şahin M, Gök İ. Modeling of Native Sheep Breeds in Türkiye by Years with Nonlinear Mathematical Models. International Journal of Pure and Applied Sciences. 2025;11(2):527-533. doi:10.29132/ijpas.1734102
Chicago
Şahin, Mustafa, and İsmail Gök. 2025. “Modeling of Native Sheep Breeds in Türkiye by Years With Nonlinear Mathematical Models”. International Journal of Pure and Applied Sciences 11 (2): 527-33. https://doi.org/10.29132/ijpas.1734102.
EndNote
Şahin M, Gök İ (December 1, 2025) Modeling of Native Sheep Breeds in Türkiye by Years with Nonlinear Mathematical Models. International Journal of Pure and Applied Sciences 11 2 527–533.
IEEE
[1]M. Şahin and İ. Gök, “Modeling of Native Sheep Breeds in Türkiye by Years with Nonlinear Mathematical Models”, International Journal of Pure and Applied Sciences, vol. 11, no. 2, pp. 527–533, Dec. 2025, doi: 10.29132/ijpas.1734102.
ISNAD
Şahin, Mustafa - Gök, İsmail. “Modeling of Native Sheep Breeds in Türkiye by Years With Nonlinear Mathematical Models”. International Journal of Pure and Applied Sciences 11/2 (December 1, 2025): 527-533. https://doi.org/10.29132/ijpas.1734102.
JAMA
1.Şahin M, Gök İ. Modeling of Native Sheep Breeds in Türkiye by Years with Nonlinear Mathematical Models. International Journal of Pure and Applied Sciences. 2025;11:527–533.
MLA
Şahin, Mustafa, and İsmail Gök. “Modeling of Native Sheep Breeds in Türkiye by Years With Nonlinear Mathematical Models”. International Journal of Pure and Applied Sciences, vol. 11, no. 2, Dec. 2025, pp. 527-33, doi:10.29132/ijpas.1734102.
Vancouver
1.Mustafa Şahin, İsmail Gök. Modeling of Native Sheep Breeds in Türkiye by Years with Nonlinear Mathematical Models. International Journal of Pure and Applied Sciences. 2025 Dec. 1;11(2):527-33. doi:10.29132/ijpas.1734102