Genetic analyses of stayability to consecutive calvings in taurine and crossbred (Bos indicus x Bos taurus) cattle

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Autor(es): dc.contributorCidade Universitária-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorNational Council for Science and Technological Development-
Autor(es): dc.contributorGenSys Consultores Associados S/S-
Autor(es): dc.creatorSilva, Diogo Osmar-
Autor(es): dc.creatorMorales, Débora da Silva-
Autor(es): dc.creatorSantana, Mário Luiz-
Autor(es): dc.creatorAyres, Denise Rocha-
Autor(es): dc.creatorBignardi, Annaiza Braga-
Autor(es): dc.creatorCarvalheiro, Roberto [UNESP]-
Autor(es): dc.creatorPiccoli, Mário Luiz-
Autor(es): dc.creatorRoso, Vanerlei Mozaquatro-
Autor(es): dc.creatorPereira, Rodrigo Junqueira-
Data de aceite: dc.date.accessioned2022-02-22T00:44:33Z-
Data de disponibilização: dc.date.available2022-02-22T00:44:33Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.livsci.2020.104331-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/205516-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/205516-
Descrição: dc.descriptionThe 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.-
Descrição: dc.descriptionGrupo 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 78735-901-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Agricultural and Veterinarian Sciences, Via de Acesso Prof. Paulo Donato Castelane-
Descrição: dc.descriptionNational Council for Science and Technological Development-
Descrição: dc.descriptionGenSys Consultores Associados S/S-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Agricultural and Veterinarian Sciences, Via de Acesso Prof. Paulo Donato Castelane-
Idioma: dc.languageen-
Relação: dc.relationLivestock Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAngus-
Palavras-chave: dc.subjectHereford-
Palavras-chave: dc.subjectLongevity-
Palavras-chave: dc.subjectProductive life-
Palavras-chave: dc.subjectRandom regression-
Palavras-chave: dc.subjectRepeated measures-
Título: dc.titleGenetic analyses of stayability to consecutive calvings in taurine and crossbred (Bos indicus x Bos taurus) cattle-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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