Estimation of genetic parameters for probability of calving up to 39 months of age, stayability and scrotal circumference in Nelore cattle

Detalhes bibliográficos
Autor(a) principal: Kluska, S.
Data de Publicação: 2018
Outros Autores: Silva, L. O.C., Maia, F. M. Costa, Lourenco, D. L., Stivanin, T. E., Baldi, F., Peripolli, E., Martins, E. N.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/221070
Resumo: Improving reproductive indexes is of extreme importance in beef cattle production systems, as well as investigating new methodologies and traits in order to increase genetic gains for reproduction. Reproductive efficiency directly affects the profitability and productivity of herds, being an important criterion in breeding programs. The objective of this study was to estimate genetic parameters in a Nelore cattle population for probability of calving up to 39 months of age (PC39), stayability, using two measures of age (STAY64– 64 months of age; and STAY76– 76 months of age), and for scrotal circumference at weaning (SCW) and 550 days of age (SC550). Genetic parameters were estimated using 2,287,827 records collected from 1901 to 2015 in Nelore cattle belonging to the Geneplus beef cattle breeding program (Campo Grande, MS, Brazil) database. Bayesian procedures were applied in single- and two-trait analyses using the GIBBS2F90 and THRGIBBS1F90 software, for linear and threshold analysis, respectively. Heritabilities from single-trait analysis were 0.15, 0.23, 0.20, 0.28, and 0.36 for PC39, STAY64, STAY76, SCW, and SC550, respectively. The correlation between PC39 and scrotal circumference were of low magnitude, 0.20 and 0.25 with SCW and SC550, respectively, suggesting that the selection for SC550 in sires would possibly lead to higher changes in PC39 occurrence than selection for SCW. The reproductive traits comprised in this study should be included in Nelore cattle breeding programs. Especially PC39, STAY64, and SC550 because its traits would increase the indexes reproductions of the production system.
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spelling Estimation of genetic parameters for probability of calving up to 39 months of age, stayability and scrotal circumference in Nelore cattleBos indicusHeritabilityReproductive traitsThreshold modelImproving reproductive indexes is of extreme importance in beef cattle production systems, as well as investigating new methodologies and traits in order to increase genetic gains for reproduction. Reproductive efficiency directly affects the profitability and productivity of herds, being an important criterion in breeding programs. The objective of this study was to estimate genetic parameters in a Nelore cattle population for probability of calving up to 39 months of age (PC39), stayability, using two measures of age (STAY64– 64 months of age; and STAY76– 76 months of age), and for scrotal circumference at weaning (SCW) and 550 days of age (SC550). Genetic parameters were estimated using 2,287,827 records collected from 1901 to 2015 in Nelore cattle belonging to the Geneplus beef cattle breeding program (Campo Grande, MS, Brazil) database. Bayesian procedures were applied in single- and two-trait analyses using the GIBBS2F90 and THRGIBBS1F90 software, for linear and threshold analysis, respectively. Heritabilities from single-trait analysis were 0.15, 0.23, 0.20, 0.28, and 0.36 for PC39, STAY64, STAY76, SCW, and SC550, respectively. The correlation between PC39 and scrotal circumference were of low magnitude, 0.20 and 0.25 with SCW and SC550, respectively, suggesting that the selection for SC550 in sires would possibly lead to higher changes in PC39 occurrence than selection for SCW. The reproductive traits comprised in this study should be included in Nelore cattle breeding programs. Especially PC39, STAY64, and SC550 because its traits would increase the indexes reproductions of the production system.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Departamento de Zootecnia Universidade Tecnológica Federal do ParanáEmbrapa Gado de CorteUniversity of Georgia – UGA Rhodes Center for Animal and Dairy ScienceDepartamento de Ciência Animal Faculdade de Ciências Agrárias e VeterináriasUniversidade Tecnológica Federal do ParanáEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Rhodes Center for Animal and Dairy ScienceFaculdade de Ciências Agrárias e VeterináriasKluska, S.Silva, L. O.C.Maia, F. M. CostaLourenco, D. L.Stivanin, T. E.Baldi, F.Peripolli, E.Martins, E. N.2022-04-28T19:08:54Z2022-04-28T19:08:54Z2018-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleLivestock Research for Rural Development, v. 30, n. 5, 2018.0121-3784http://hdl.handle.net/11449/2210702-s2.0-85046301176Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLivestock Research for Rural Developmentinfo:eu-repo/semantics/openAccess2022-04-28T19:08:54Zoai:repositorio.unesp.br:11449/221070Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:49:31.894306Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Estimation of genetic parameters for probability of calving up to 39 months of age, stayability and scrotal circumference in Nelore cattle
title Estimation of genetic parameters for probability of calving up to 39 months of age, stayability and scrotal circumference in Nelore cattle
spellingShingle Estimation of genetic parameters for probability of calving up to 39 months of age, stayability and scrotal circumference in Nelore cattle
Kluska, S.
Bos indicus
Heritability
Reproductive traits
Threshold model
title_short Estimation of genetic parameters for probability of calving up to 39 months of age, stayability and scrotal circumference in Nelore cattle
title_full Estimation of genetic parameters for probability of calving up to 39 months of age, stayability and scrotal circumference in Nelore cattle
title_fullStr Estimation of genetic parameters for probability of calving up to 39 months of age, stayability and scrotal circumference in Nelore cattle
title_full_unstemmed Estimation of genetic parameters for probability of calving up to 39 months of age, stayability and scrotal circumference in Nelore cattle
title_sort Estimation of genetic parameters for probability of calving up to 39 months of age, stayability and scrotal circumference in Nelore cattle
author Kluska, S.
author_facet Kluska, S.
Silva, L. O.C.
Maia, F. M. Costa
Lourenco, D. L.
Stivanin, T. E.
Baldi, F.
Peripolli, E.
Martins, E. N.
author_role author
author2 Silva, L. O.C.
Maia, F. M. Costa
Lourenco, D. L.
Stivanin, T. E.
Baldi, F.
Peripolli, E.
Martins, E. N.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Tecnológica Federal do Paraná
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
Rhodes Center for Animal and Dairy Science
Faculdade de Ciências Agrárias e Veterinárias
dc.contributor.author.fl_str_mv Kluska, S.
Silva, L. O.C.
Maia, F. M. Costa
Lourenco, D. L.
Stivanin, T. E.
Baldi, F.
Peripolli, E.
Martins, E. N.
dc.subject.por.fl_str_mv Bos indicus
Heritability
Reproductive traits
Threshold model
topic Bos indicus
Heritability
Reproductive traits
Threshold model
description Improving reproductive indexes is of extreme importance in beef cattle production systems, as well as investigating new methodologies and traits in order to increase genetic gains for reproduction. Reproductive efficiency directly affects the profitability and productivity of herds, being an important criterion in breeding programs. The objective of this study was to estimate genetic parameters in a Nelore cattle population for probability of calving up to 39 months of age (PC39), stayability, using two measures of age (STAY64– 64 months of age; and STAY76– 76 months of age), and for scrotal circumference at weaning (SCW) and 550 days of age (SC550). Genetic parameters were estimated using 2,287,827 records collected from 1901 to 2015 in Nelore cattle belonging to the Geneplus beef cattle breeding program (Campo Grande, MS, Brazil) database. Bayesian procedures were applied in single- and two-trait analyses using the GIBBS2F90 and THRGIBBS1F90 software, for linear and threshold analysis, respectively. Heritabilities from single-trait analysis were 0.15, 0.23, 0.20, 0.28, and 0.36 for PC39, STAY64, STAY76, SCW, and SC550, respectively. The correlation between PC39 and scrotal circumference were of low magnitude, 0.20 and 0.25 with SCW and SC550, respectively, suggesting that the selection for SC550 in sires would possibly lead to higher changes in PC39 occurrence than selection for SCW. The reproductive traits comprised in this study should be included in Nelore cattle breeding programs. Especially PC39, STAY64, and SC550 because its traits would increase the indexes reproductions of the production system.
publishDate 2018
dc.date.none.fl_str_mv 2018-05-01
2022-04-28T19:08:54Z
2022-04-28T19:08:54Z
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 Livestock Research for Rural Development, v. 30, n. 5, 2018.
0121-3784
http://hdl.handle.net/11449/221070
2-s2.0-85046301176
identifier_str_mv Livestock Research for Rural Development, v. 30, n. 5, 2018.
0121-3784
2-s2.0-85046301176
url http://hdl.handle.net/11449/221070
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Livestock Research for Rural Development
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
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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