COMPONENTS OF (CO)VARIANCE FOR AGE AT FIRST AND SECOND CALVING OF NELLORE FEMALES RAISED IN SOUTHERN BRAZIL

Detalhes bibliográficos
Autor(a) principal: Bresolin, Tiago
Data de Publicação: 2015
Outros Autores: Everling, Dionéia Magda, Urbano Braz, Camila, Breda, Fernanda Cristina, Nogara Rorato, Paulo Roberto
Tipo de documento: Artigo
Idioma: por
Título da fonte: Ciência animal brasileira (Online)
Texto Completo: https://revistas.ufg.br/vet/article/view/28131
Resumo: The objective of this study was to estimate the heritability, genetic correlation and estimated breedingvalues for age at first (AFC) and second calving (ASC) for Nellore females raised in SouthernBrazil. The (co)variance and estimated breeding values were obtained using Bayesian inference ina bivariate analysis, adopting an animal model. The average ages were 49.30 and 69.85 months,and the heritabilities were 0.25 and 0.26, respectively for AFC and ASC. The genetic correlationbetween AFC and ASC was 0.88. The correlation between the classifications of sires according totheir estimated breeding values was 0.93. The heritability estimates for AFC and ASC suggest thepossibility of obtaining genetic gain by selection. The correlation between these traits close to oneindicates that they are virtually controlled by the same genes, and the selection for one of them willpromote correlated advanced gain for the other.Keywords: Bayesian inference; beef cattle; genetic parameters; fertility.
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spelling COMPONENTS OF (CO)VARIANCE FOR AGE AT FIRST AND SECOND CALVING OF NELLORE FEMALES RAISED IN SOUTHERN BRAZILCOMPONENTES DE (CO)VARIÂNCIA PARA IDADE AO PRIMEIRO E AO SEGUNDO PARTOS DE FÊMEAS DA RAÇA NELORE CRIADAS NO SUL DO BRASILbeef cattlefertilityBayesian inferencegenetic parametersReprodução AnimalThe objective of this study was to estimate the heritability, genetic correlation and estimated breedingvalues for age at first (AFC) and second calving (ASC) for Nellore females raised in SouthernBrazil. The (co)variance and estimated breeding values were obtained using Bayesian inference ina bivariate analysis, adopting an animal model. The average ages were 49.30 and 69.85 months,and the heritabilities were 0.25 and 0.26, respectively for AFC and ASC. The genetic correlationbetween AFC and ASC was 0.88. The correlation between the classifications of sires according totheir estimated breeding values was 0.93. The heritability estimates for AFC and ASC suggest thepossibility of obtaining genetic gain by selection. The correlation between these traits close to oneindicates that they are virtually controlled by the same genes, and the selection for one of them willpromote correlated advanced gain for the other.Keywords: Bayesian inference; beef cattle; genetic parameters; fertility. Este estudo teve como objetivo estimar os coeficientes de herdabilidade e predizer o valor genético dosreprodutores para idade ao primeiro (IPP) e ao segundo parto (ISP), além do coeficiente de correlaçãogenética entre estas duas características, para fêmeas da raça Nelore, criadas no sul do Brasil. Oscomponentes de (co)variâncias, bem como os valores genéticos, foram obtidos por meio de InferênciaBayesiana, em análise bi-característica, adotando um modelo animal. As médias de idade foram 49,30e 69,85 meses e os coeficientes de herdabilidade foram 0,25 e 0,26, respectivamente, para IPP e ISP.A estimativa de correlação genética entre IPP e ISP foi 0,88. A correlação da classificação dos touros,de acordo com seu valor genético, foi 0,93. As herdabilidades estimadas para IPP e ISP sugerem apossibilidade de obtenção de ganho genético pela seleção e a correlação entre estas característicaspróximas de um indica que são controladas por praticamente o mesmo grupo de genes e que a seleçãopara uma delas promoverá ganho correlacionado para a outra.Palavras-chave: bovinos de corte; fertilidade; inferência Bayesiana; parâmetros genéticos.Universidade Federal de Goiás2015-10-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresPesquisa Científicaapplication/pdftext/htmlhttps://revistas.ufg.br/vet/article/view/2813110.1590/cab.v16i4.28131Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 16 No. 4 (2015); 474-480Ciência Animal Brasileira / Brazilian Animal Science; v. 16 n. 4 (2015); 474-4801809-68911518-2797reponame:Ciência animal brasileira (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/vet/article/view/28131/19442https://revistas.ufg.br/vet/article/view/28131/19443Bresolin, TiagoEverling, Dionéia MagdaUrbano Braz, CamilaBreda, Fernanda CristinaNogara Rorato, Paulo Robertoinfo:eu-repo/semantics/openAccess2015-11-10T17:44:06Zoai:ojs.revistas.ufg.br:article/28131Revistahttps://revistas.ufg.br/vetPUBhttps://revistas.ufg.br/vet/oai||revistacab@gmail.com1809-68911518-2797opendoar:2024-05-21T19:56:04.971097Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv COMPONENTS OF (CO)VARIANCE FOR AGE AT FIRST AND SECOND CALVING OF NELLORE FEMALES RAISED IN SOUTHERN BRAZIL
COMPONENTES DE (CO)VARIÂNCIA PARA IDADE AO PRIMEIRO E AO SEGUNDO PARTOS DE FÊMEAS DA RAÇA NELORE CRIADAS NO SUL DO BRASIL
title COMPONENTS OF (CO)VARIANCE FOR AGE AT FIRST AND SECOND CALVING OF NELLORE FEMALES RAISED IN SOUTHERN BRAZIL
spellingShingle COMPONENTS OF (CO)VARIANCE FOR AGE AT FIRST AND SECOND CALVING OF NELLORE FEMALES RAISED IN SOUTHERN BRAZIL
Bresolin, Tiago
beef cattle
fertility
Bayesian inference
genetic parameters
Reprodução Animal
title_short COMPONENTS OF (CO)VARIANCE FOR AGE AT FIRST AND SECOND CALVING OF NELLORE FEMALES RAISED IN SOUTHERN BRAZIL
title_full COMPONENTS OF (CO)VARIANCE FOR AGE AT FIRST AND SECOND CALVING OF NELLORE FEMALES RAISED IN SOUTHERN BRAZIL
title_fullStr COMPONENTS OF (CO)VARIANCE FOR AGE AT FIRST AND SECOND CALVING OF NELLORE FEMALES RAISED IN SOUTHERN BRAZIL
title_full_unstemmed COMPONENTS OF (CO)VARIANCE FOR AGE AT FIRST AND SECOND CALVING OF NELLORE FEMALES RAISED IN SOUTHERN BRAZIL
title_sort COMPONENTS OF (CO)VARIANCE FOR AGE AT FIRST AND SECOND CALVING OF NELLORE FEMALES RAISED IN SOUTHERN BRAZIL
author Bresolin, Tiago
author_facet Bresolin, Tiago
Everling, Dionéia Magda
Urbano Braz, Camila
Breda, Fernanda Cristina
Nogara Rorato, Paulo Roberto
author_role author
author2 Everling, Dionéia Magda
Urbano Braz, Camila
Breda, Fernanda Cristina
Nogara Rorato, Paulo Roberto
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Bresolin, Tiago
Everling, Dionéia Magda
Urbano Braz, Camila
Breda, Fernanda Cristina
Nogara Rorato, Paulo Roberto
dc.subject.por.fl_str_mv beef cattle
fertility
Bayesian inference
genetic parameters
Reprodução Animal
topic beef cattle
fertility
Bayesian inference
genetic parameters
Reprodução Animal
description The objective of this study was to estimate the heritability, genetic correlation and estimated breedingvalues for age at first (AFC) and second calving (ASC) for Nellore females raised in SouthernBrazil. The (co)variance and estimated breeding values were obtained using Bayesian inference ina bivariate analysis, adopting an animal model. The average ages were 49.30 and 69.85 months,and the heritabilities were 0.25 and 0.26, respectively for AFC and ASC. The genetic correlationbetween AFC and ASC was 0.88. The correlation between the classifications of sires according totheir estimated breeding values was 0.93. The heritability estimates for AFC and ASC suggest thepossibility of obtaining genetic gain by selection. The correlation between these traits close to oneindicates that they are virtually controlled by the same genes, and the selection for one of them willpromote correlated advanced gain for the other.Keywords: Bayesian inference; beef cattle; genetic parameters; fertility.
publishDate 2015
dc.date.none.fl_str_mv 2015-10-30
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
Pesquisa Científica
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/vet/article/view/28131
10.1590/cab.v16i4.28131
url https://revistas.ufg.br/vet/article/view/28131
identifier_str_mv 10.1590/cab.v16i4.28131
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/vet/article/view/28131/19442
https://revistas.ufg.br/vet/article/view/28131/19443
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
text/html
dc.publisher.none.fl_str_mv Universidade Federal de Goiás
publisher.none.fl_str_mv Universidade Federal de Goiás
dc.source.none.fl_str_mv Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 16 No. 4 (2015); 474-480
Ciência Animal Brasileira / Brazilian Animal Science; v. 16 n. 4 (2015); 474-480
1809-6891
1518-2797
reponame:Ciência animal brasileira (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Ciência animal brasileira (Online)
collection Ciência animal brasileira (Online)
repository.name.fl_str_mv Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv ||revistacab@gmail.com
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