Application of Linear, Quadratic and Cubic Regression Models to Predict Body Weight from Different Body Measurements in Domestic Cats
Yükleniyor...
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Friends Science Publ
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The aims of this study were to predict body weight (BW) from different body measurements and to determine the best regression model for domestic cats. For this aims, a total of 48 adult Turkish cats (20 females & 8 males Turkish Angora; 13 females & 7 males Turkish Van) were used. In the study, wither height (WH), body length (BL) and head circumference (HC) were assumed as independent variables, whereas body weight was used as dependent variable. Linear, quadratic and cubic effects of the independent variables were included in the assumed model as Y=b(0) + b(1)X + b(2)X(2) + b(3)X(3) + e. Where Y = body weight; b(0) = the intercept; X = independent variables, (WH, BL, or HC); b(1), b(2) and b(3) = regression coefficients and e = random error. Conceptual predictive (Cp) and Akaike information criterion (AIC) were used to determine the most suitable model among the assumed models. The model that has the smallest Cp and AIC values is the best model. The R-2 values from the regression indicate the BL (R-2 = 0.50) to be moderately related to the BW. Neither the quadratic term nor the cubic term was significant for all body traits, whereas the linear term was highly significant (p < 0.001) for all independent variables. Since the maximum number of independent variables is three, there were seven possible different models. It can be concluded that cat body weight was explained with the following model. (BW) = -4.53 + 0.11 WH + 0.13 BL with p-values, < 0.001, 0.0083, and < 0.001 for the intercept, b(1) and b(2), respectively with R-2 = 0.57. (C) 2011 Friends Science Publishers
Açıklama
Anahtar Kelimeler
Cat, Regression analysis, Body weight estimation
Kaynak
International Journal Of Agriculture And Biology
WoS Q Değeri
Q2
Scopus Q Değeri
Q3
Cilt
13
Sayı
3
Künye
closedAccess
