Genetic and environmental effects on milk yield of Pitangueiras cattle

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Florida-
Autor(es): dc.creatorLôbo, R. B.-
Autor(es): dc.creatorDuarte, F. A.M.-
Autor(es): dc.creatorGonçalves, A. A.M.-
Autor(es): dc.creatorOliveira, J. A.-
Autor(es): dc.creatorWilcox, C. J.-
Data de aceite: dc.date.accessioned2025-08-21T21:40:46Z-
Data de disponibilização: dc.date.available2025-08-21T21:40:46Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued1984-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1017/S0003356100041787-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/228159-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/228159-
Descrição: dc.descriptionData from 5270 lactation records of 1380 cows sired by 132 bulls and recorded from 1962 to 1977 were analysed. Statistical analyses, using least squares and maximum likelihood methods, showed significant effects for genetic group, age of cow, month and year of calving, and lactation length. Overall mean milk yield was 2780 kg (CV = 0·31) with mean lactation length of 281 days. Maximum production occurred in the fifth lactation (104 or 105 months of age at calving) with a yield of 1·3 times that of the first lactation. Repeatability estimated by intraclass correlation was 0·40 (s.e. 0·03). Heritability estimated from paternal half-sib correlation was 0·16 (s.e. 0·06). Overall results were very similar to those obtained from research with European breeds in temperate areas. © 1984, British Society of Animal Science. All rights reserved.-
Descrição: dc.descriptionDepartment of Genetics Faculty of Medicine of Ribeirāo Preto USP, 14100 Ribeirāo Preto Sāo Paulo-
Descrição: dc.descriptionDepartment of Zootechny Faculty of Agronomy of Ilha Solteira UNESP, 15378 Ilha Solteira, Sāo Paulo-
Descrição: dc.descriptionDairy Science Department Institute of Food and Agricultural Science University of Florida, Gainesville, Florida 32611-
Descrição: dc.descriptionDepartment of Zootechny Faculty of Agronomy of Ilha Solteira UNESP, 15378 Ilha Solteira, Sāo Paulo-
Formato: dc.format157-163-
Idioma: dc.languageen-
Relação: dc.relationAnimal Production-
???dc.source???: dc.sourceScopus-
Título: dc.titleGenetic and environmental effects on milk yield of Pitangueiras cattle-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.