Division of Livestock Economics, Statistics and Information Technology, Indian Veterinary Research Institute, Izatnagar-243 122, India
The polynomial regressions are not suitable to describe the growth in which the dependent variable approaches to an asymptotic value as independent variable passes through infinity. The Stevens model is, generally, used to model the asymptotic growth. A nonlinear regression model that is an extension of this model is proposed in this study and empirically has been shown that the proposed model performs better than Stevens model for estimation of growth curves.
Asymptotic growth, nonlinear regression model, Stevens model
