Genetic analyses of stayability to consecutive calvings in taurine and crossbred (Bos indicus x Bos taurus) cattle
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.livsci.2020.104331 http://hdl.handle.net/11449/205516 |
Resumo: | The trait stayability is a way of assessing productive life and has been measured late in the cow's life. Measuring the stayability to each calving is a strategy that can be implemented to obtain earlier indicators of longevity. Thus, the objective with this study was the estimation of genetic parameters for stayability to consecutive calvings for Angus/Brangus and Hereford/Braford cattle breeds. By using random regression animal models, different orders of Legendre orthogonal polynomials were compared. According to DIC, the model with cubic Legendre polynomials (4 coefficients) was the most appropriate. Heritability estimates ranged from 0.05 to 0.08 for and had a similar trend for both breeds, being higher for stayability at intermediate calvings (fourth to sixth). Genetic correlation estimates were from 0.47 to 0.87 and 0.63 to 0.93 for Angus/Brangus and Hereford/Braford, respectively, and were higher for stayability between closer calvings. The estimates observed for genetic correlations indicate that the genetic control of stayability to each calving is performed by the same group of genes, at least partially. For this reason, the selection to increase the probability of stayability to second calving can result in a moderate genetic gain in subsequent calvings. Cubic random regression models can be used for the genetic evaluation of the stayability to consecutive calvings in beef cattle. |
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Genetic analyses of stayability to consecutive calvings in taurine and crossbred (Bos indicus x Bos taurus) cattleAngusHerefordLongevityProductive lifeRandom regressionRepeated measuresThe trait stayability is a way of assessing productive life and has been measured late in the cow's life. Measuring the stayability to each calving is a strategy that can be implemented to obtain earlier indicators of longevity. Thus, the objective with this study was the estimation of genetic parameters for stayability to consecutive calvings for Angus/Brangus and Hereford/Braford cattle breeds. By using random regression animal models, different orders of Legendre orthogonal polynomials were compared. According to DIC, the model with cubic Legendre polynomials (4 coefficients) was the most appropriate. Heritability estimates ranged from 0.05 to 0.08 for and had a similar trend for both breeds, being higher for stayability at intermediate calvings (fourth to sixth). Genetic correlation estimates were from 0.47 to 0.87 and 0.63 to 0.93 for Angus/Brangus and Hereford/Braford, respectively, and were higher for stayability between closer calvings. The estimates observed for genetic correlations indicate that the genetic control of stayability to each calving is performed by the same group of genes, at least partially. For this reason, the selection to increase the probability of stayability to second calving can result in a moderate genetic gain in subsequent calvings. Cubic random regression models can be used for the genetic evaluation of the stayability to consecutive calvings in beef cattle.Grupo de Melhoramento Animal do Mato Grosso (GMAT) Instituto de Ciências Agrárias e Tecnológicas Universidade Federal de Rondonópolis Avenida dos Estudantes no 5.055 Cidade Universitária, CEP 78735-901São Paulo State University (UNESP) School of Agricultural and Veterinarian Sciences, Via de Acesso Prof. Paulo Donato CastelaneNational Council for Science and Technological DevelopmentGenSys Consultores Associados S/SSão Paulo State University (UNESP) School of Agricultural and Veterinarian Sciences, Via de Acesso Prof. Paulo Donato CastelaneCidade UniversitáriaUniversidade Estadual Paulista (Unesp)National Council for Science and Technological DevelopmentGenSys Consultores Associados S/SSilva, Diogo OsmarMorales, Débora da SilvaSantana, Mário LuizAyres, Denise RochaBignardi, Annaiza BragaCarvalheiro, Roberto [UNESP]Piccoli, Mário LuizRoso, Vanerlei MozaquatroPereira, Rodrigo Junqueira2021-06-25T10:16:45Z2021-06-25T10:16:45Z2021-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.livsci.2020.104331Livestock Science, v. 244.1871-1413http://hdl.handle.net/11449/20551610.1016/j.livsci.2020.1043312-s2.0-85096540112Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLivestock Scienceinfo:eu-repo/semantics/openAccess2021-10-23T14:48:13Zoai:repositorio.unesp.br:11449/205516Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T14:48:13Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Genetic analyses of stayability to consecutive calvings in taurine and crossbred (Bos indicus x Bos taurus) cattle |
title |
Genetic analyses of stayability to consecutive calvings in taurine and crossbred (Bos indicus x Bos taurus) cattle |
spellingShingle |
Genetic analyses of stayability to consecutive calvings in taurine and crossbred (Bos indicus x Bos taurus) cattle Silva, Diogo Osmar Angus Hereford Longevity Productive life Random regression Repeated measures |
title_short |
Genetic analyses of stayability to consecutive calvings in taurine and crossbred (Bos indicus x Bos taurus) cattle |
title_full |
Genetic analyses of stayability to consecutive calvings in taurine and crossbred (Bos indicus x Bos taurus) cattle |
title_fullStr |
Genetic analyses of stayability to consecutive calvings in taurine and crossbred (Bos indicus x Bos taurus) cattle |
title_full_unstemmed |
Genetic analyses of stayability to consecutive calvings in taurine and crossbred (Bos indicus x Bos taurus) cattle |
title_sort |
Genetic analyses of stayability to consecutive calvings in taurine and crossbred (Bos indicus x Bos taurus) cattle |
author |
Silva, Diogo Osmar |
author_facet |
Silva, Diogo Osmar Morales, Débora da Silva Santana, Mário Luiz Ayres, Denise Rocha Bignardi, Annaiza Braga Carvalheiro, Roberto [UNESP] Piccoli, Mário Luiz Roso, Vanerlei Mozaquatro Pereira, Rodrigo Junqueira |
author_role |
author |
author2 |
Morales, Débora da Silva Santana, Mário Luiz Ayres, Denise Rocha Bignardi, Annaiza Braga Carvalheiro, Roberto [UNESP] Piccoli, Mário Luiz Roso, Vanerlei Mozaquatro Pereira, Rodrigo Junqueira |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Cidade Universitária Universidade Estadual Paulista (Unesp) National Council for Science and Technological Development GenSys Consultores Associados S/S |
dc.contributor.author.fl_str_mv |
Silva, Diogo Osmar Morales, Débora da Silva Santana, Mário Luiz Ayres, Denise Rocha Bignardi, Annaiza Braga Carvalheiro, Roberto [UNESP] Piccoli, Mário Luiz Roso, Vanerlei Mozaquatro Pereira, Rodrigo Junqueira |
dc.subject.por.fl_str_mv |
Angus Hereford Longevity Productive life Random regression Repeated measures |
topic |
Angus Hereford Longevity Productive life Random regression Repeated measures |
description |
The trait stayability is a way of assessing productive life and has been measured late in the cow's life. Measuring the stayability to each calving is a strategy that can be implemented to obtain earlier indicators of longevity. Thus, the objective with this study was the estimation of genetic parameters for stayability to consecutive calvings for Angus/Brangus and Hereford/Braford cattle breeds. By using random regression animal models, different orders of Legendre orthogonal polynomials were compared. According to DIC, the model with cubic Legendre polynomials (4 coefficients) was the most appropriate. Heritability estimates ranged from 0.05 to 0.08 for and had a similar trend for both breeds, being higher for stayability at intermediate calvings (fourth to sixth). Genetic correlation estimates were from 0.47 to 0.87 and 0.63 to 0.93 for Angus/Brangus and Hereford/Braford, respectively, and were higher for stayability between closer calvings. The estimates observed for genetic correlations indicate that the genetic control of stayability to each calving is performed by the same group of genes, at least partially. For this reason, the selection to increase the probability of stayability to second calving can result in a moderate genetic gain in subsequent calvings. Cubic random regression models can be used for the genetic evaluation of the stayability to consecutive calvings in beef cattle. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T10:16:45Z 2021-06-25T10:16:45Z 2021-02-01 |
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/10.1016/j.livsci.2020.104331 Livestock Science, v. 244. 1871-1413 http://hdl.handle.net/11449/205516 10.1016/j.livsci.2020.104331 2-s2.0-85096540112 |
url |
http://dx.doi.org/10.1016/j.livsci.2020.104331 http://hdl.handle.net/11449/205516 |
identifier_str_mv |
Livestock Science, v. 244. 1871-1413 10.1016/j.livsci.2020.104331 2-s2.0-85096540112 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Livestock Science |
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 |
|
_version_ |
1799965671426097152 |