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Breeding value accuracy estimates for growth traits using random regression and multi-trait models in Nelore cattle
(Funpec-editora, 2011-01-01)
We quantified the potential increase in accuracy of expected breeding value for weights of Nelore cattle, from birth to mature age, using multi-trait and random regression models on Legendre polynomials and B-spline ...
Breeding value accuracy estimates for growth traits using random regression and multi-trait models in Nelore cattle
(Funpec-editora, 2011-01-01)
We quantified the potential increase in accuracy of expected breeding value for weights of Nelore cattle, from birth to mature age, using multi-trait and random regression models on Legendre polynomials and B-spline ...
Polynomials to model the growth of young bulls in performance tests
(Cambridge University Press, 2014-03-01)
The use of polynomial functions to describe the average growth trajectory and covariance functions of Nellore and MA (21/32 Charolais+11/32 Nellore) young bulls in performance tests was studied. The average growth trajectories ...
Genetic evaluation and selection response for growth in meat-type quail through random regression models using B-spline functions and Legendre polynomials
(Cambridge Univ Press, 2018-04-01)
The objective was to estimate (co)variance functions using random regression models (RRM) with Legendre polynomials, B-spline function and multi-trait models aimed at evaluating genetic parameters of growth traits in ...
Random regression models on Legendre polynomials to estimate genetic parameters for weights from birth to adult age in Canchim cattle
(2010-08-01)
The objective of this work was to estimate covariance functions for direct and maternal genetic effects, animal and maternal permanent environmental effects, and subsequently, to derive relevant genetic parameters for ...
Ajuste de polinomios fraccionarios a curvas de crecimiento / Fit the fractional polynomials to curves growth
(2010)
En esta tesis se propone una metodología que permite ajustar curvas de crecimiento a través de polinomios fraccionarios, se utiliza la transformación propuesta por Potthoff y Roy (1964) que permite medir el efecto de la ...
Growth curves for ostriches (Struthio camelus) in a Brazilian population
(2013-01-01)
The objective of this study was to fit growth curves using nonlinear and linear functions to describe the growth of ostriches in a Brazilian population. The data set consisted of 112 animals with BW measurements from ...
Growth curves for ostriches (Struthio camelus) in a Brazilian population
(2013-01-01)
The objective of this study was to fit growth curves using nonlinear and linear functions to describe the growth of ostriches in a Brazilian population. The data set consisted of 112 animals with BW measurements from ...
Random regression models for the estimation of genetic and environmental covariance functions for growth traits in Santa Ines sheep
(Funpec-editora, 2016-01-01)
Polynomial functions of different orders were used to model random effects associated with weight of Santa Ines sheep from birth to 196 days. Fixed effects included in the models were contemporary groups, age of ewe at ...