Genetic association between feed efficiency, growth, scrotal circumference, and carcass traits in Guzerat cattle

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Autor(es): dc.contributorGoiás Federal University-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity center Barão de Mauá-
Autor(es): dc.creatorPereira, Letícia Silva-
Autor(es): dc.creatorBrunes, Ludmilla Costa-
Autor(es): dc.creatorBaldi, Fernando-
Autor(es): dc.creatordo Carmo, Adriana Santana-
Autor(es): dc.creatorSoares, Byanka Bueno-
Autor(es): dc.creatorMagnabosco, Valentina-
Autor(es): dc.creatorda Costa Eifert, Eduardo-
Autor(es): dc.creatorMagnabosco, Cláudio Ulhôa-
Data de aceite: dc.date.accessioned2025-08-21T15:55:32Z-
Data de disponibilização: dc.date.available2025-08-21T15:55:32Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-04-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s11250-023-03552-0-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/247055-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/247055-
Descrição: dc.descriptionThe objective of this study was to estimate the genetic parameters for feed efficiency-related traits and their genetic correlations with growth, male fertility, and carcass traits using multi-trait analysis in Guzerat cattle. Further, it aimed to predict the direct and correlated responses for feed efficiency traits when selection was applied for growth, male fertility, and carcass traits. The evaluated traits were adjusted weight at 120 (W120), 210 (W210), 365 (W365), and 450 days of age (W450), adjusted scrotal circumference at 365 days of age (SC365) and at 450 days of age (SC450), scrotal circumference, ribeye area (REA), backfat thickness (BFT), rump fat thickness (RFT), residual feed intake (RFI), and dry matter intake (DMI). The genetic parameters were obtained by the restricted maximum likelihood method (REML), using an animal model in multi-trait analyses. The heritability estimates for W120, W210, W365, W450, SC365, and SC450 varied from low to high (0.17 to 0.39). The carcass traits, REA, BFT, and RFT, displayed low to moderate heritability estimates, 0.27, 0.10, and 0.31, respectively. The heritability estimates for RFI (0.15) and DMI (0.23) were low and moderate, respectively. The RFI showed low genetic correlations with growth traits, ranging from − 0.07 to 0.22, from 0.03 to 0.05 for scrotal circumference, and from − 0.35 to 0.16 for carcass, except for DMI, which ranged from 0.42 to 0.46. The RFI and DMI presented enough additive genetic variability to be used as selection criteria in Guzerat breed genetic improvement program. Additionally, the response to selection for RFI would be higher when selection is performed directly for this trait. The selection for residual feed intake would not promote unfavorable correlated responses for scrotal circumference, carcass (yield and finish), and growth traits. Therefore, the selection for more efficient animals would not compromise the productive, reproductive, and carcass performance, contributing to reduce the production costs, increasing the profitability and sustainability of beef cattle production in tropical areas.-
Descrição: dc.descriptionAnimal Science Department Goiás Federal University, Esperança, s/n, GO-
Descrição: dc.descriptionEmbrapa Cerrados, 73310-970, DF, BR-020, Km 18-
Descrição: dc.descriptionAnimal Science Department São Paulo State University - Júlio de Mesquita Filho (UNESP), Prof. Paulo Donato Castelane, SP-
Descrição: dc.descriptionVeterinary School University center Barão de Mauá, Ramos de Azevedo, SP-
Descrição: dc.descriptionAnimal Science Department São Paulo State University - Júlio de Mesquita Filho (UNESP), Prof. Paulo Donato Castelane, SP-
Idioma: dc.languageen-
Relação: dc.relationTropical Animal Health and Production-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectGenetic parameters-
Palavras-chave: dc.subjectResidual feed intake-
Palavras-chave: dc.subjectRestricted maximum likelihood-
Palavras-chave: dc.subjectZebu cattle-
Título: dc.titleGenetic association between feed efficiency, growth, scrotal circumference, and carcass traits in Guzerat cattle-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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