Selection effect for growth traits on energy requirements in beef Nelore steers

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal da Bahia (UFBA)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorRodoviaSulGoiana-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorDel Pilar Solar Diaz, Iara-
Autor(es): dc.creatorBezerra, Luis Antonio Framartino-
Autor(es): dc.creatorLôbo, Raysildo Barbosa-
Autor(es): dc.creatorde Araújo Neto, Francisco Ribeiro-
Autor(es): dc.creatorde Camargo, Gregório Miguel Ferreira-
Autor(es): dc.creatorda Cruz, Valdecy Aparecida Rocha-
Autor(es): dc.creatorCosta, Raphael Bermal-
Autor(es): dc.creatorde Oliveira, Henrique Nunes-
Data de aceite: dc.date.accessioned2025-08-21T17:40:14Z-
Data de disponibilização: dc.date.available2025-08-21T17:40:14Z-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2022-08-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s11250-022-03210-x-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/241168-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/241168-
Descrição: dc.descriptionGrowth data of 77,372 Nelore steers were used to estimate the selection effect on energy requirements considering two beef production systems: cow-calf and slaughter cycles. All the animals had measures from 120 days to 7 years old. The parameters necessary to evaluate the selection effect on energy requirements were obtained by random regression analysis using Legendre polynomials. The models included additive direct and maternal effects, and animal and maternal permanent environmental effects as random terms. Contemporary group and dam age at calving (linear and quadratic effect) were included as fixed effects, and orthogonal Legendre polynomials of animal age (cubic regression) were considered random covariables. The coefficients from the model M3353_5 were used to calculate the genetic gains necessary to predict the increase in phenotypes. The selection was simulated for body weight (BW) and weight gain (WG) at different ages and energy requirements were calculated using NRC equations. The cost of feed was calculated for a cow-calf and slaughter cycle of production considering a system of Brachiaria decumbens pasture without supplementation. In slaughter system, the selection for weight of 365 days of age is the best option. In cow-calf systems, the selection W120 is the best choice.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionEscola de Medicina Veterinária E Zootecnia Universidade Federal da Bahia (UFBA), BA-
Descrição: dc.descriptionDepartamento de Genética Faculdade de Medicina de Ribeirão Preto Universidade de São Paulo-
Descrição: dc.descriptionCiência e Tecnologia Goiano – IF Goiano Instituto Federal de Educação RodoviaSulGoiana, Campus Rio VerdeKm 01Rio Verde, CEP-
Descrição: dc.descriptionDepartamento de Zootecnia Faculdade de Ciências Agrárias E Veterinárias Universidade Estadual Paulista (Unesp), SP-
Descrição: dc.descriptionDepartamento de Zootecnia Faculdade de Ciências Agrárias E Veterinárias Universidade Estadual Paulista (Unesp), SP-
Descrição: dc.descriptionFAPESP: 2009/04490-7-
Idioma: dc.languageen-
Relação: dc.relationTropical Animal Health and Production-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBeef cattle production system-
Palavras-chave: dc.subjectCorrelated response-
Palavras-chave: dc.subjectEnergy requirement-
Palavras-chave: dc.subjectGrowth-
Palavras-chave: dc.subjectNelore-
Palavras-chave: dc.subjectProfitability-
Palavras-chave: dc.subjectSelection criteria-
Título: dc.titleSelection effect for growth traits on energy requirements in beef Nelore steers-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.