Journals / Livestock Studies / 2026 / Volume: 46 Issue: 1

The Linear and Nonlinear Growth Curves Based on The Live Weight Measurements of Simmental x Southern Anatolian Red Crossbred Cattle

SİMMENTAL X GÜNEY ANADOLU KIRMIZISI SIĞIRLARINA AİT CANLI AĞIRLIK ÖLÇÜMLERİNE DAYANAN DOĞRUSAL VE DOĞRUSAL OLMAYAN BÜYÜME EĞRİLERİ

Cemil Çolak(Başbakanlık Gümrük Müsteşarlığı Gümrükler Genel Müdürlüğü - ANKARA)
Mehmet N. Orman(Ankara Üniversitesi Veteriner Fakültesi Biyoistatistik Anabilim Dalı - ANKARA)
Okan Ertuğrul(Ankara Üniversitesi Veteriner Fakültesi Genetik Anabilim Dalı - ANKARA)
Pages
1–5
Publication Date
2006-06-01
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It was concluded that Gompertz growth curve model was more successful than linear and logistic models in the description of weight-age process according to goodness of fit criterions

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, nonlinear logistic, Gompertz and linear growth curves were obtained based on the live weight measurements of Simmental x Southern Anatolian Red crossbred cattle F1xB1 genotype.
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Key Findings & Data:It was studied the autocorrelation of the residuals from the linear, Gompertz and logistic growth curve models.
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Conclusion & Impact:It was concluded that Gompertz growth curve model was more successful than linear and logistic models in the description of weight-age process according to goodness of fit criterions
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Koyun · Östrüs Oranı · Sıfat Dönemi

Abstract

In this study, nonlinear logistic, Gompertz and linear growth curves were obtained based on the live weight measurements of Simmental x Southern Anatolian Red crossbred cattle F1xB1 genotype. It was studied the autocorrelation of the residuals from the linear, Gompertz and logistic growth curve models. Goodness of fit of the models was determined by the values of mean square error and coefficient of determination. It was concluded that Gompertz growth curve model was more successful than linear and logistic models in the description of weight-age process according to goodness of fit criterions

Özet

Bu çalışmada, Simmental x Güney Anadolu Kırmızısı (GAK) melezi F1xG1 genotipine ilişkin canlı ağırlık ölçümlerine dayanan doğrusal olmayan lojistik, Gompertz ve doğrusal büyüme eğrileri oluşturulmuştur. Doğrusal, Gompertz ve lojistik büyüme modellerine ait artıklarda ortaya çıkabilecek özilişki sorunu incelenmiştir. Modellerinin uyum iyiliği, hata kareler ortalaması ve belirleme katsayısı değerleri kullanılarak yapılmıştır. Sonuç olarak, ağırlık-yaş sürecinin tanımlanmasında Gompertz modelinin doğrusal ve lojistik modellerinden daha başarılı olduğu uyum iyiliği ölçütleri ile belirlenmiştir

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Cite This Article

Çolak, C., Orman, M. N., Ertuğrul, O. (2006). The Linear and Nonlinear Growth Curves Based on The Live Weight Measurements of Simmental x Southern Anatolian Red Crossbred Cattle. Livestock Studies, Volume: 46 Issue: 1, 1–5. https://ajindex.com/articles/1240125

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