Estimation of (co)variance components and genetic parameters for weights of red-winged tinamou using random regression models.

Estimation of (co)variance components and genetic parameters for weights of red-winged tinamou using random regression models.

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The objective of this work was to determine genetic parameters for body weight of tinamou in captivity. It was used random regression models in analyses of data by considering the direct additive genetic (DA) and permanent environmental effects of the animal (PE) as random effects. Residual variances were modeled by using a fifth-order variance function. The mean population growth curve was fitted by sixth-order Legendre orthogonal polynomials. Direct additive genetic effects and animal environmental permanent effect were modeled by using Legendre polynomials of order two to nine. The best results were obtained by models with orders of fit of 6 for direct additive genetic effect and of order 3 for permanent effect by Akaike information criterion and of order 3 for both additive genetic effect and permanent effect by Schwarz Bayesian information criterion and likelihood ratio test. Heritability estimates ranged from 0.02 to 0.57. The first eigenvalue explained 94% and 90% of the variation from additive direct and permant environmental effects, respectively. Selection of tinamou for body weight is more effective after 112 days of age.

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Main Authors: THOLON, P., QUEIROZ, S. A.
Other Authors: PATRICIA THOLON, CPPSE; SANDRA AIDAR QUEIROZ, UNESP/JABOTICABAL.
Format: Artigo de periódico biblioteca
Language:Ingles
English
Published: 2011-12-07
Subjects:Legendre polynomials, Tinamou, Wild bird, genetic correlation, heritability,
Online Access:http://www.alice.cnptia.embrapa.br/alice/handle/doc/908926
https://doi.org/10.1590/S1516-35982011000400011
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spelling dig-alice-doc-9089262022-07-28T10:19:31Z Estimation of (co)variance components and genetic parameters for weights of red-winged tinamou using random regression models. THOLON, P. QUEIROZ, S. A. PATRICIA THOLON, CPPSE; SANDRA AIDAR QUEIROZ, UNESP/JABOTICABAL. Legendre polynomials Tinamou Wild bird genetic correlation heritability The objective of this work was to determine genetic parameters for body weight of tinamou in captivity. It was used random regression models in analyses of data by considering the direct additive genetic (DA) and permanent environmental effects of the animal (PE) as random effects. Residual variances were modeled by using a fifth-order variance function. The mean population growth curve was fitted by sixth-order Legendre orthogonal polynomials. Direct additive genetic effects and animal environmental permanent effect were modeled by using Legendre polynomials of order two to nine. The best results were obtained by models with orders of fit of 6 for direct additive genetic effect and of order 3 for permanent effect by Akaike information criterion and of order 3 for both additive genetic effect and permanent effect by Schwarz Bayesian information criterion and likelihood ratio test. Heritability estimates ranged from 0.02 to 0.57. The first eigenvalue explained 94% and 90% of the variation from additive direct and permant environmental effects, respectively. Selection of tinamou for body weight is more effective after 112 days of age. 2022-07-28T10:19:22Z 2022-07-28T10:19:22Z 2011-12-07 2011 Artigo de periódico Revista Brasileira de Zootecnia, v. 40, n. 4, p. 781-787, apr. 2011. http://www.alice.cnptia.embrapa.br/alice/handle/doc/908926 https://doi.org/10.1590/S1516-35982011000400011 Ingles en openAccess
institution EMBRAPA
collection DSpace
country Brasil
countrycode BR
component Bibliográfico
access En linea
databasecode dig-alice
tag biblioteca
region America del Sur
libraryname Sistema de bibliotecas de EMBRAPA
language Ingles
English
topic Legendre polynomials
Tinamou
Wild bird
genetic correlation
heritability
Legendre polynomials
Tinamou
Wild bird
genetic correlation
heritability
spellingShingle Legendre polynomials
Tinamou
Wild bird
genetic correlation
heritability
Legendre polynomials
Tinamou
Wild bird
genetic correlation
heritability
THOLON, P.
QUEIROZ, S. A.
Estimation of (co)variance components and genetic parameters for weights of red-winged tinamou using random regression models.
description The objective of this work was to determine genetic parameters for body weight of tinamou in captivity. It was used random regression models in analyses of data by considering the direct additive genetic (DA) and permanent environmental effects of the animal (PE) as random effects. Residual variances were modeled by using a fifth-order variance function. The mean population growth curve was fitted by sixth-order Legendre orthogonal polynomials. Direct additive genetic effects and animal environmental permanent effect were modeled by using Legendre polynomials of order two to nine. The best results were obtained by models with orders of fit of 6 for direct additive genetic effect and of order 3 for permanent effect by Akaike information criterion and of order 3 for both additive genetic effect and permanent effect by Schwarz Bayesian information criterion and likelihood ratio test. Heritability estimates ranged from 0.02 to 0.57. The first eigenvalue explained 94% and 90% of the variation from additive direct and permant environmental effects, respectively. Selection of tinamou for body weight is more effective after 112 days of age.
author2 PATRICIA THOLON, CPPSE; SANDRA AIDAR QUEIROZ, UNESP/JABOTICABAL.
author_facet PATRICIA THOLON, CPPSE; SANDRA AIDAR QUEIROZ, UNESP/JABOTICABAL.
THOLON, P.
QUEIROZ, S. A.
format Artigo de periódico
topic_facet Legendre polynomials
Tinamou
Wild bird
genetic correlation
heritability
author THOLON, P.
QUEIROZ, S. A.
author_sort THOLON, P.
title Estimation of (co)variance components and genetic parameters for weights of red-winged tinamou using random regression models.
title_short Estimation of (co)variance components and genetic parameters for weights of red-winged tinamou using random regression models.
title_full Estimation of (co)variance components and genetic parameters for weights of red-winged tinamou using random regression models.
title_fullStr Estimation of (co)variance components and genetic parameters for weights of red-winged tinamou using random regression models.
title_full_unstemmed Estimation of (co)variance components and genetic parameters for weights of red-winged tinamou using random regression models.
title_sort estimation of (co)variance components and genetic parameters for weights of red-winged tinamou using random regression models.
publishDate 2011-12-07
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/908926
https://doi.org/10.1590/S1516-35982011000400011
work_keys_str_mv AT tholonp estimationofcovariancecomponentsandgeneticparametersforweightsofredwingedtinamouusingrandomregressionmodels
AT queirozsa estimationofcovariancecomponentsandgeneticparametersforweightsofredwingedtinamouusingrandomregressionmodels
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