A Comparative Study of the Nonlinear Methods for Estimating Body
Weight Based on Body Measurements in Diff erent Sample Sizes in
Morkaraman Sheep

Yaganoglu, A. Mutlu

doi:10.9775/kvfd.2021.26864

A Comparative Study of the Nonlinear Methods for Estimating Body Weight Based on Body Measurements in Diff erent Sample Sizes in Morkaraman Sheep

Aycan Mutlu YAĞANOĞLU (Atatürk Üniversitesi, Ziraat Fakültesi, Hayvan Bilimleri Bölümü, Erzurum, Türkiye)

Kafkas Üniversitesi Veteriner Fakültesi Dergisi

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Yıl: 2022 Cilt: 28 Sayı: 2 Sayfa Aralığı: 261 - 265 Metin Dili: İngilizce DOI: 10.9775/kvfd.2021.26864 İndeks Tarihi: 04-07-2022

A Comparative Study of the Nonlinear Methods for Estimating Body Weight Based on Body Measurements in Diff erent Sample Sizes in Morkaraman Sheep

Öz:

Th e objective of this study is to estimate the body weight of Morkaraman sheep from body measurements with nonlinear models. Five diff erent models (allometric, logistic, saturation growth, exponential and incomplete gamma) are used to estimate best-fitted model for relationship between body length and body weight of Morkaraman sheeps at diff erent sample sizes. Selected 110 sheeps 3-5 years were scored for body weight, body length, height at wither, chest width and rump width. For determining the relationships with body weight between body measurements, correlation analysis was performed. Th e results of the correlation analysis indicated that the highest relationship according to all sample sizes was between body weight and body length (0.95, 0.90, 0.83, 0.81). Considering all parameters included in the model, the parameter showing the highest correlation with body weight was determined as body length according to all sample sizes. Th e highest correlation was found in 50 sample sizes (r=0.95). According to the small sample sizes (10-20), Logistic and Saturation growth models can be used to determine the body weight by using body length, on the other hand, the Incomplete gamma model is more successful to estimate body weight when the sample size is nearly 30 and 50.

Anahtar Kelime:

Morkaraman Koyunlarında Farklı Örnek Büyüklüklerinde Vücut Ölçülerine Göre Vücut Ağırlığının Tahmin Edilmesinde Doğrusal Olmayan Yöntemlerin Karşılaştırılması

Öz:

Bu çalışmanın amacı, Morkaraman koyunlarının vücut ağırlığının lineer olmayan modellerle vücut ölçülerinden tahmin edilmesidir. Farklı örneklem büyüklüklerinde Morkaraman koyunlarının vücut uzunluğu ve vücut ağırlığı arasındaki ilişki için en uygun modeli tahmin etmek için beş farklı model (allometric, logistic, saturation growth, exponential and incomplete gamma) kullanılmıştır. Üç ile beş yaş arası seçilen 110 koyunun, vücut ağırlığı, vücut uzunluğu, cidago yüksekliği, göğüs genişliği ve sağrı genişliği değerleri ölçülmüştür. Vücut ölçüleri arasında vücut ağırlığı ile ilişkileri belirlemek için korelasyon analizi uygulanmıştır. Korelasyon analizi sonuçları, tüm örneklem büyüklüklerine göre en yüksek ilişkinin vücut uzunluğu ile (0.95, 0.90, 0.83, 0.81) vücut ağırlığı arasında olduğunu göstermiştir. Modelde yer alan tüm parametreler dikkate alındığında, örneklem büyüklüklerine göre vücut ağırlığı ile en yüksek korelasyonu gösteren parametre vücut uzunluğu olarak belirlenmiştir. En yüksek korelasyon 50 örneklem büyüklüğünde bulunmuş olup (r=0.95), küçük örneklem boyutlarına göre (10-20), vücut uzunluğunu kullanarak vücut ağırlığını belirlemek için Lojistik ve Saturation Growth modelleri, örnek büyüklüğü yaklaşık 30-50 arasında olanlarda ise vücut ağırlığını tahmin etmede Incomplete gama modeli daha etkili sonuçlar vermiştir.

Anahtar Kelime:

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık

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APA	Yaganoglu A (2022). A Comparative Study of the Nonlinear Methods for Estimating Body Weight Based on Body Measurements in Diff erent Sample Sizes in Morkaraman Sheep. , 261 - 265. 10.9775/kvfd.2021.26864
Chicago	Yaganoglu A. Mutlu A Comparative Study of the Nonlinear Methods for Estimating Body Weight Based on Body Measurements in Diff erent Sample Sizes in Morkaraman Sheep. (2022): 261 - 265. 10.9775/kvfd.2021.26864
MLA	Yaganoglu A. Mutlu A Comparative Study of the Nonlinear Methods for Estimating Body Weight Based on Body Measurements in Diff erent Sample Sizes in Morkaraman Sheep. , 2022, ss.261 - 265. 10.9775/kvfd.2021.26864
AMA	Yaganoglu A A Comparative Study of the Nonlinear Methods for Estimating Body Weight Based on Body Measurements in Diff erent Sample Sizes in Morkaraman Sheep. . 2022; 261 - 265. 10.9775/kvfd.2021.26864
Vancouver	Yaganoglu A A Comparative Study of the Nonlinear Methods for Estimating Body Weight Based on Body Measurements in Diff erent Sample Sizes in Morkaraman Sheep. . 2022; 261 - 265. 10.9775/kvfd.2021.26864
IEEE	Yaganoglu A "A Comparative Study of the Nonlinear Methods for Estimating Body Weight Based on Body Measurements in Diff erent Sample Sizes in Morkaraman Sheep." , ss.261 - 265, 2022. 10.9775/kvfd.2021.26864
ISNAD	Yaganoglu, A. Mutlu. "A Comparative Study of the Nonlinear Methods for Estimating Body Weight Based on Body Measurements in Diff erent Sample Sizes in Morkaraman Sheep". (2022), 261-265. https://doi.org/10.9775/kvfd.2021.26864

APA	Yaganoglu A (2022). A Comparative Study of the Nonlinear Methods for Estimating Body Weight Based on Body Measurements in Diff erent Sample Sizes in Morkaraman Sheep. Kafkas Üniversitesi Veteriner Fakültesi Dergisi, 28(2), 261 - 265. 10.9775/kvfd.2021.26864
Chicago	Yaganoglu A. Mutlu A Comparative Study of the Nonlinear Methods for Estimating Body Weight Based on Body Measurements in Diff erent Sample Sizes in Morkaraman Sheep. Kafkas Üniversitesi Veteriner Fakültesi Dergisi 28, no.2 (2022): 261 - 265. 10.9775/kvfd.2021.26864
MLA	Yaganoglu A. Mutlu A Comparative Study of the Nonlinear Methods for Estimating Body Weight Based on Body Measurements in Diff erent Sample Sizes in Morkaraman Sheep. Kafkas Üniversitesi Veteriner Fakültesi Dergisi, vol.28, no.2, 2022, ss.261 - 265. 10.9775/kvfd.2021.26864
AMA	Yaganoglu A A Comparative Study of the Nonlinear Methods for Estimating Body Weight Based on Body Measurements in Diff erent Sample Sizes in Morkaraman Sheep. Kafkas Üniversitesi Veteriner Fakültesi Dergisi. 2022; 28(2): 261 - 265. 10.9775/kvfd.2021.26864
Vancouver	Yaganoglu A A Comparative Study of the Nonlinear Methods for Estimating Body Weight Based on Body Measurements in Diff erent Sample Sizes in Morkaraman Sheep. Kafkas Üniversitesi Veteriner Fakültesi Dergisi. 2022; 28(2): 261 - 265. 10.9775/kvfd.2021.26864
IEEE	Yaganoglu A "A Comparative Study of the Nonlinear Methods for Estimating Body Weight Based on Body Measurements in Diff erent Sample Sizes in Morkaraman Sheep." Kafkas Üniversitesi Veteriner Fakültesi Dergisi, 28, ss.261 - 265, 2022. 10.9775/kvfd.2021.26864
ISNAD	Yaganoglu, A. Mutlu. "A Comparative Study of the Nonlinear Methods for Estimating Body Weight Based on Body Measurements in Diff erent Sample Sizes in Morkaraman Sheep". Kafkas Üniversitesi Veteriner Fakültesi Dergisi 28/2 (2022), 261-265. https://doi.org/10.9775/kvfd.2021.26864