The Comparison of Growth Curve with Different Models in Anatolian Buffalo

Abstract

The aim of this study is determining the relationship between body weight and age on growth curve models and selecting the best fitted model. The study was conducted in live weight records maintained a total of 54 male and female buffalo heads for a year. Richards, Gompertz, Logistic and Von Bertalanffy models are used as growth model in recent study. The model parameters were calculated and the comparisons among the models are materialized according to goodness of fit criteria (R-2, R-adj(2), MSE, AIC and BIC). As a result, all models were indicated that high and similar goodness of fit criteria. Richards and Von Bertalanffy models are the most appropriate (R-2=0,996; R-adj(2)=0,993; MSE=62,71; AIC=42,47; BIC=27,29) for female animal and (R-2=0,998; R-d(2)=0,998; HKO=18,51; AIC=30,51; BIC=12,65) male animal, respectively.