Genetic parameters for milk yield, age at first calving and interval between first and second calving in milk buffaloes

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorAPTA/SAA-
Autor(es): dc.creatorde Oliveira Seno, L.-
Autor(es): dc.creatorTonhati, H.-
Autor(es): dc.creatorCardoso, V. L.-
Autor(es): dc.creatorEl Faro, L.-
Autor(es): dc.creatorSesana, R. C.-
Autor(es): dc.creatorAspilcueta Borquis, R. R.-
Data de aceite: dc.date.accessioned2025-08-21T17:11:49Z-
Data de disponibilização: dc.date.available2025-08-21T17:11:49Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2007-12-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.4081/ijas.2007.s2.397-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/227235-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/227235-
Descrição: dc.descriptionGenetic parameters for the relation between the traits of milk yield (MY), age at first calving (AFC) and interval between first and second calving (IBFSC) were estimated in milk buffaloes of the Murrah breed. In the study, data of 1578 buffaloes at first lactation, with calvings from 1974 to 2006 were analyzed. The MTDFREML system was used in the analyses with models for the MY, IBFSC traits which included the fixed effects of herd-year-season of calving, linear and quadratic terms of calving age as covariate and the random animal effects and error. The model for AFC consisted of the herd-year-season fixed effects of calving and the random effects of animal and error. Heritability estimates MY, AFC and IBFSC traits were 0.20, 0.07 and 0.14, respectively. Genetic and phenotypic correlations between the traits were: MY and AFC = -0.12 and -0.15, MY and IBFSC = 0.07 and 0.30, AFC and IBFSC = 0.35 and 0.37, respectively. Genetic correlation between MY and AFC traits showed desirable negative association, suggesting that the daughters of the bulls with high breeding value for MY could be physiological maturity to a precocious age. Genetic correlation between MY and IBFSC showed that the selection of the animals that increased milk yield is also those that tend to intervals of bigger calving.-
Descrição: dc.descriptionDepartament of Animal Sciences FCAV/UNESP-
Descrição: dc.descriptionAgência Paulista de Tecnologia dos Agronegócios APTA/SAA-
Descrição: dc.descriptionDepartament of Animal Sciences FCAV/UNESP-
Formato: dc.format397-400-
Idioma: dc.languageen-
Relação: dc.relationItalian Journal of Animal Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectDairy buffalo-
Palavras-chave: dc.subjectGenetic and phenotypic correlation-
Palavras-chave: dc.subjectProductive and reproductive traits-
Título: dc.titleGenetic parameters for milk yield, age at first calving and interval between first and second calving in milk buffaloes-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.