Comparison of different nonlinear functions to describe Nelore cattle growth

Journal of Animal Science
S ForniL G Albuquerque

Abstract

This work aims to compare different nonlinear functions for describing the growth curves of Nelore females. The growth curve parameters, their (co)variance components, and environmental and genetic effects were estimated jointly through a Bayesian hierarchical model. In the first stage of the hierarchy, 4 nonlinear functions were compared: Brody, Von Bertalanffy, Gompertz, and logistic. The analyses were carried out using 3 different data sets to check goodness of fit while having animals with few records. Three different assumptions about SD of fitting errors were considered: constancy throughout the trajectory, linear increasing until 3 yr of age and constancy thereafter, and variation following the nonlinear function applied in the first stage of the hierarchy. Comparisons of the overall goodness of fit were based on Akaike information criterion, the Bayesian information criterion, and the deviance information criterion. Goodness of fit at different points of the growth curve was compared applying the Gelfand's check function. The posterior means of adult BW ranged from 531.78 to 586.89 kg. Greater estimates of adult BW were observed when the fitting error variance was considered constant along the trajectory. The models wer...Continue Reading

References

Mar 11, 1992·Journal of Animal Science·J J BeltránM Koger
Dec 1, 1985·Journal of Animal Science·R S DeNise, J S Brinks
Jan 5, 2002·Journal of Animal Science·L G Albuquerque, K Meyer
Feb 28, 2003·Genetics, Selection, Evolution : GSE·Agustín BlascoLuis Varona
Sep 1, 1957·The Quarterly Review of Biology·L VON BERTALANFFY
Jul 24, 2007·Journal of Animal Science·S ForniL G Albuquerque

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Citations

Dec 8, 2016·Animal Science Journal = Nihon Chikusan Gakkaihō·Maria SelvaggiVincenzo Tufarelli
Dec 12, 2018·Poultry Science·Ariane Gonçalves GotuzzoNelson José Laurino Dionello
May 14, 2020·Animals : an Open Access Journal From MDPI·Christian A Bateki, Uta Dickhoefer
Nov 26, 2010·Journal of Animal Science·N Ibáñez-Escriche, A Blasco
Jan 24, 2015·Statistics in Medicine·Sten P WillemsenEmmanuel Lesaffre
May 4, 2012·Tropical Animal Health and Production·Fernando B LopesConcepta M McManus
Jun 14, 2021·Journal of Equine Veterinary Science·Danielle Estanislau Coelho SilvaJosé Domingos Guimarães

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