Curve Modelling Procedure in SAS Package Program
DOI:
https://doi.org/10.5281/zenodo.18234708Keywords:
SAS, Curve, ProcedureAbstract
Growth, lactation, and yield curves are widely used in animal husbandry. In addition to pedigree records, they are widely used as a supporting tool in animal breeding. Curve models based on the herd average provide an indication of the herd's overall structure, while individual models provide insight into individual development. In this context, they are used as a supporting tool, particularly in the selection and culling stages. Although curve models are widely used, the number of programs available in this field is quite limited. Among these limited programs, the SAS statistical package stands out, as it offers sufficient user intervention and is widely used. This study will cover the basic steps of the curve modeling procedure (data definition, data input, model, curve, and curve feature definition). For this purpose, the curve modeling procedure in the SAS package will be discussed in detail using a numerical example related to animal husbandry, ultimately providing an important resource for researchers working in this field.
References
Bayazıt, M., Şahin, M., & Tolun, T. (2022). Modeling of in vitro gas production. Black Sea Journal of Agriculture, 5(3), 260–264. https://doi.org/10.47115/bsagriculture.1091017
dos Santos Cabral, Í., Azevêdo, J. A. G., Pina, D. dos S., Pereira, L. G. R., Fernandes, H. J., Almeida, F. M., Souza, L. L., de Lima, R. F., & Cirne, L. G. A. (2019). Evaluation of models utilized in in vitro gas production from tropical feedstuffs. Semina: Ciências Agrárias, 40(1), 443–456. https://doi.org/10.5433/1679-0359.2019v40n1p443
Goodwin, D. K., Ramsey, A. F., & Chvosta, J. (2018). Applied econometrics with SAS: Modeling demand, supply, and risk. SAS Press.
Korosteleva, O. (2018). Advanced regression models with SAS and R. Chapman & Hall.
Makkar, H. P. S., & Blümmel, M. (1997). In vitro rumen apparent and true digestibilities of tannin-rich forages. Animal Feed Science and Technology, 67(3–4), 245–251.
Orskov, E. R., & McDonald, I. (1979). The estimation of protein degradability in the rumen from incubation measurements weighted according to the rate of passage. Journal of Agricultural Science, 92(2), 499–503.
Özkan, Ç. Ö., & Kamalak, A. (2023). İn-vitro gaz üretim tekniğinde kullanılan matematik modeller ve karşılaştırma yöntemleri. İçinde Tarımsal araştırmalarda istatistiksel analizler (ss. 1–7). Holistence Publications.
Panik, M. J. (2010). Regression modeling: Methods, theory, and computation with SAS. Chapman & Hall.
Panik, M. J. (2013). Growth curve modeling: Theory and applications. John Wiley & Sons.
SAS Institute Inc. (1999). The SAS system for Windows. Release 8.0.1. SAS Institute Inc.
Stroup, W. W., Milliken, G. A., Claassen, E. A., & Wolfinger, R. D. (2009). Generalized linear mixed models: Modern concepts, methods and applications. SAS Press.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 Black Sea Journal of Statistics
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
