Genetic parameter estimates and response to selection for weight and testicular traits in Nelore cattle
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.4238/2011.December.19.1 http://hdl.handle.net/11449/14120 |
Resumo: | We estimated genetic parameters for various phases of body and testicular growth until 550 days of age in Nelore cattle, using Bayesian inference, including correlation values and error estimates. Weight and scrotal records of 54,182 Nelore animals originating from 18 farms participating in the Brazilian Nelore Breeding Program (PMGRN) were included. The following traits were measured: weight at standard ages of 120 (W120), 210 (W210), 365 (W365), 450 (W450), and 550 (W550) days; weight gain between 120/210 (WG1), 210/365 (WG2), 365/450 (WG3), 450/550 (WG4), 120/365 (WG5), 120/450 (WG6), 120/550 (WG7), 210/450 (WG8), 210/550 (WG9), and 365/550 (WG10) days of age; scrotal circumference at 365 (SC365), 450 (SC450) and 550 (SC550) days of age, and testicular growth between 365/450 (TG1), 450/550 (TG2) and 365/550 (TG3) days of age. The model included contemporary group (current farm, year and two-month period of birth, sex, and management group) and age of dam at calving, divided into classes as fixed effects. The model also included random effects for direct additive, maternal additive and maternal permanent environmental, and residual effects. The direct heritability estimates ranged from 0.23 to 0.39, 0.13 to 0.39 and 0.32 to 0.56 for weights at standard ages, weight gains and testicular measures, respectively. The genetic correlations between weights (0.69 to 0.94) and scrotal circumferences (0.91 to 0.97) measured at standard ages were higher than those between weight gain and testicular growth (0.18 to 0.97 and 0.36 to 0.77, respectively). The weights at standard ages responded more effectively to selection, and also gave strong correlations with the other traits. |
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Genetic parameter estimates and response to selection for weight and testicular traits in Nelore cattlecattleGibbs samplesGrowthReproductive traitsWe estimated genetic parameters for various phases of body and testicular growth until 550 days of age in Nelore cattle, using Bayesian inference, including correlation values and error estimates. Weight and scrotal records of 54,182 Nelore animals originating from 18 farms participating in the Brazilian Nelore Breeding Program (PMGRN) were included. The following traits were measured: weight at standard ages of 120 (W120), 210 (W210), 365 (W365), 450 (W450), and 550 (W550) days; weight gain between 120/210 (WG1), 210/365 (WG2), 365/450 (WG3), 450/550 (WG4), 120/365 (WG5), 120/450 (WG6), 120/550 (WG7), 210/450 (WG8), 210/550 (WG9), and 365/550 (WG10) days of age; scrotal circumference at 365 (SC365), 450 (SC450) and 550 (SC550) days of age, and testicular growth between 365/450 (TG1), 450/550 (TG2) and 365/550 (TG3) days of age. The model included contemporary group (current farm, year and two-month period of birth, sex, and management group) and age of dam at calving, divided into classes as fixed effects. The model also included random effects for direct additive, maternal additive and maternal permanent environmental, and residual effects. The direct heritability estimates ranged from 0.23 to 0.39, 0.13 to 0.39 and 0.32 to 0.56 for weights at standard ages, weight gains and testicular measures, respectively. The genetic correlations between weights (0.69 to 0.94) and scrotal circumferences (0.91 to 0.97) measured at standard ages were higher than those between weight gain and testicular growth (0.18 to 0.97 and 0.36 to 0.77, respectively). The weights at standard ages responded more effectively to selection, and also gave strong correlations with the other traits.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Univ Estadual Paulista, Fac Ciencias Agr &Vet, Dept Genet & Melhoramento Anim, Jaboticabal, SP, BrazilUniv São Paulo, Fac Med Ribeirao Preto, Dept Genet, Ribeirao Preto, SP, BrazilUniv Estadual Paulista, Fac Med Vet & Zootecnia, Dept Nutr & Melhoramento Anim, Botucatu, SP, BrazilUniv Estadual Paulista, Fac Ciencias Agr &Vet, Dept Genet & Melhoramento Anim, Jaboticabal, SP, BrazilUniv Estadual Paulista, Fac Med Vet & Zootecnia, Dept Nutr & Melhoramento Anim, Botucatu, SP, BrazilFunpec-editoraUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Araujo Neto, F. R. [UNESP]Lobo, R. B.Mota, M. D. S. [UNESP]Oliveira, Henrique Nunes de [UNESP]2013-09-30T18:27:29Z2014-05-20T13:40:42Z2013-09-30T18:27:29Z2014-05-20T13:40:42Z2011-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article3127-3140application/pdfhttp://dx.doi.org/10.4238/2011.December.19.1Genetics and Molecular Research. Ribeirao Preto: Funpec-editora, v. 10, n. 4, p. 3127-3140, 2011.1676-5680http://hdl.handle.net/11449/1412010.4238/2011.December.19.1WOS:0003006176000852-s2.0-84861804621WOS000300617600085.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGenetics and Molecular Research0,439info:eu-repo/semantics/openAccess2023-12-13T06:17:49Zoai:repositorio.unesp.br:11449/14120Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-13T06:17:49Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Genetic parameter estimates and response to selection for weight and testicular traits in Nelore cattle |
title |
Genetic parameter estimates and response to selection for weight and testicular traits in Nelore cattle |
spellingShingle |
Genetic parameter estimates and response to selection for weight and testicular traits in Nelore cattle Araujo Neto, F. R. [UNESP] cattle Gibbs samples Growth Reproductive traits |
title_short |
Genetic parameter estimates and response to selection for weight and testicular traits in Nelore cattle |
title_full |
Genetic parameter estimates and response to selection for weight and testicular traits in Nelore cattle |
title_fullStr |
Genetic parameter estimates and response to selection for weight and testicular traits in Nelore cattle |
title_full_unstemmed |
Genetic parameter estimates and response to selection for weight and testicular traits in Nelore cattle |
title_sort |
Genetic parameter estimates and response to selection for weight and testicular traits in Nelore cattle |
author |
Araujo Neto, F. R. [UNESP] |
author_facet |
Araujo Neto, F. R. [UNESP] Lobo, R. B. Mota, M. D. S. [UNESP] Oliveira, Henrique Nunes de [UNESP] |
author_role |
author |
author2 |
Lobo, R. B. Mota, M. D. S. [UNESP] Oliveira, Henrique Nunes de [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Araujo Neto, F. R. [UNESP] Lobo, R. B. Mota, M. D. S. [UNESP] Oliveira, Henrique Nunes de [UNESP] |
dc.subject.por.fl_str_mv |
cattle Gibbs samples Growth Reproductive traits |
topic |
cattle Gibbs samples Growth Reproductive traits |
description |
We estimated genetic parameters for various phases of body and testicular growth until 550 days of age in Nelore cattle, using Bayesian inference, including correlation values and error estimates. Weight and scrotal records of 54,182 Nelore animals originating from 18 farms participating in the Brazilian Nelore Breeding Program (PMGRN) were included. The following traits were measured: weight at standard ages of 120 (W120), 210 (W210), 365 (W365), 450 (W450), and 550 (W550) days; weight gain between 120/210 (WG1), 210/365 (WG2), 365/450 (WG3), 450/550 (WG4), 120/365 (WG5), 120/450 (WG6), 120/550 (WG7), 210/450 (WG8), 210/550 (WG9), and 365/550 (WG10) days of age; scrotal circumference at 365 (SC365), 450 (SC450) and 550 (SC550) days of age, and testicular growth between 365/450 (TG1), 450/550 (TG2) and 365/550 (TG3) days of age. The model included contemporary group (current farm, year and two-month period of birth, sex, and management group) and age of dam at calving, divided into classes as fixed effects. The model also included random effects for direct additive, maternal additive and maternal permanent environmental, and residual effects. The direct heritability estimates ranged from 0.23 to 0.39, 0.13 to 0.39 and 0.32 to 0.56 for weights at standard ages, weight gains and testicular measures, respectively. The genetic correlations between weights (0.69 to 0.94) and scrotal circumferences (0.91 to 0.97) measured at standard ages were higher than those between weight gain and testicular growth (0.18 to 0.97 and 0.36 to 0.77, respectively). The weights at standard ages responded more effectively to selection, and also gave strong correlations with the other traits. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-01 2013-09-30T18:27:29Z 2013-09-30T18:27:29Z 2014-05-20T13:40:42Z 2014-05-20T13:40:42Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.4238/2011.December.19.1 Genetics and Molecular Research. Ribeirao Preto: Funpec-editora, v. 10, n. 4, p. 3127-3140, 2011. 1676-5680 http://hdl.handle.net/11449/14120 10.4238/2011.December.19.1 WOS:000300617600085 2-s2.0-84861804621 WOS000300617600085.pdf |
url |
http://dx.doi.org/10.4238/2011.December.19.1 http://hdl.handle.net/11449/14120 |
identifier_str_mv |
Genetics and Molecular Research. Ribeirao Preto: Funpec-editora, v. 10, n. 4, p. 3127-3140, 2011. 1676-5680 10.4238/2011.December.19.1 WOS:000300617600085 2-s2.0-84861804621 WOS000300617600085.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Genetics and Molecular Research 0,439 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
3127-3140 application/pdf |
dc.publisher.none.fl_str_mv |
Funpec-editora |
publisher.none.fl_str_mv |
Funpec-editora |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1799965268788641792 |