Abstract

PARES-CASANOVA, Pere Miquel; CABALLERO, Marta  and  PEREZGROVAS, Raúl. Comparison of non-linear models for describing growth curves according to sex in ovine Chiapas Breed. Rev. investig. vet. Perú [online]. 2015, vol.26, n.3, pp.389-394. ISSN 1609-9117.  http://dx.doi.org/10.15381/rivep.v26i3.11170.

The aim of this study was to establish the growth curves in ovine Chiapas breed according to sex. Three models were used: logistic, von Bertalanffy and Gompertz. Body weight data were obtained from 66 males and 79 females of various ages. The three models showed similar goodness values; however, the logistic model was the best to describe the growth kinetics in this breed for both males and females, although this model tends to overestimate the initial body weights

Keywords : logistic model; von Bertalanffy model; Gompertz model; ontogeny.

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