Estimativa da mudança genética na produção de leite e gordura em bovinos da raça Holandesa

Detalhes bibliográficos
Autor(a) principal: Tonhati, Humberto [UNESP]
Data de Publicação: 1997
Outros Autores: Lôbo, Raysildo Barbosa
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://www.revista.sbz.org.br/artigo/index.php?artigo=103
http://hdl.handle.net/11449/65143
Resumo: The objective of this study was to estimate the genetic trends of the milk and fat yield in three herds maintained in São Paulo State, Brazil. The estimation of genetic, environmental and phenotypic trends were based on 716 first lactations. The cows were sired by 134 bulls. The statistical models included the fixed effects of herds, kind of gestation, season and year of the calving, age of the cow at calving, besides the random effect of the bulls. The statistical analyses, by the last squares method showed effects for bulls, herds and age of the cows on milk and fat yield. The genetic, environmental and phenotypic trends estimated were -10.20; 6.74 and -3.46 kg for milk yield and -1.90; 2.20 and 0.12 kg for fat yield.
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spelling Estimativa da mudança genética na produção de leite e gordura em bovinos da raça HolandesaGenetic trends for milk and fat yield in Holstein-friesian cattleGenetic trendsHolstein-friesianMilk productionBos taurusFriesiaThe objective of this study was to estimate the genetic trends of the milk and fat yield in three herds maintained in São Paulo State, Brazil. The estimation of genetic, environmental and phenotypic trends were based on 716 first lactations. The cows were sired by 134 bulls. The statistical models included the fixed effects of herds, kind of gestation, season and year of the calving, age of the cow at calving, besides the random effect of the bulls. The statistical analyses, by the last squares method showed effects for bulls, herds and age of the cows on milk and fat yield. The genetic, environmental and phenotypic trends estimated were -10.20; 6.74 and -3.46 kg for milk yield and -1.90; 2.20 and 0.12 kg for fat yield.FCAV Campus de Jaboticabal UNESPFMRP Campus de Ribeirão Preto USPFCAV Campus de Jaboticabal UNESPUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Tonhati, Humberto [UNESP]Lôbo, Raysildo Barbosa2014-05-27T11:18:14Z2014-05-27T11:18:14Z1997-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article714-718application/pdfhttp://www.revista.sbz.org.br/artigo/index.php?artigo=103Revista Brasileira de Zootecnia, v. 26, n. 4, p. 714-718, 1997.0100-4859http://hdl.handle.net/11449/651432-s2.0-38430972892-s2.0-3843097289.pdf7445254960858159Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira de Zootecniainfo:eu-repo/semantics/openAccess2023-12-30T06:14:07Zoai:repositorio.unesp.br:11449/65143Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-30T06:14:07Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Estimativa da mudança genética na produção de leite e gordura em bovinos da raça Holandesa
Genetic trends for milk and fat yield in Holstein-friesian cattle
title Estimativa da mudança genética na produção de leite e gordura em bovinos da raça Holandesa
spellingShingle Estimativa da mudança genética na produção de leite e gordura em bovinos da raça Holandesa
Tonhati, Humberto [UNESP]
Genetic trends
Holstein-friesian
Milk production
Bos taurus
Friesia
title_short Estimativa da mudança genética na produção de leite e gordura em bovinos da raça Holandesa
title_full Estimativa da mudança genética na produção de leite e gordura em bovinos da raça Holandesa
title_fullStr Estimativa da mudança genética na produção de leite e gordura em bovinos da raça Holandesa
title_full_unstemmed Estimativa da mudança genética na produção de leite e gordura em bovinos da raça Holandesa
title_sort Estimativa da mudança genética na produção de leite e gordura em bovinos da raça Holandesa
author Tonhati, Humberto [UNESP]
author_facet Tonhati, Humberto [UNESP]
Lôbo, Raysildo Barbosa
author_role author
author2 Lôbo, Raysildo Barbosa
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Tonhati, Humberto [UNESP]
Lôbo, Raysildo Barbosa
dc.subject.por.fl_str_mv Genetic trends
Holstein-friesian
Milk production
Bos taurus
Friesia
topic Genetic trends
Holstein-friesian
Milk production
Bos taurus
Friesia
description The objective of this study was to estimate the genetic trends of the milk and fat yield in three herds maintained in São Paulo State, Brazil. The estimation of genetic, environmental and phenotypic trends were based on 716 first lactations. The cows were sired by 134 bulls. The statistical models included the fixed effects of herds, kind of gestation, season and year of the calving, age of the cow at calving, besides the random effect of the bulls. The statistical analyses, by the last squares method showed effects for bulls, herds and age of the cows on milk and fat yield. The genetic, environmental and phenotypic trends estimated were -10.20; 6.74 and -3.46 kg for milk yield and -1.90; 2.20 and 0.12 kg for fat yield.
publishDate 1997
dc.date.none.fl_str_mv 1997-07-01
2014-05-27T11:18:14Z
2014-05-27T11:18:14Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.revista.sbz.org.br/artigo/index.php?artigo=103
Revista Brasileira de Zootecnia, v. 26, n. 4, p. 714-718, 1997.
0100-4859
http://hdl.handle.net/11449/65143
2-s2.0-3843097289
2-s2.0-3843097289.pdf
7445254960858159
url http://www.revista.sbz.org.br/artigo/index.php?artigo=103
http://hdl.handle.net/11449/65143
identifier_str_mv Revista Brasileira de Zootecnia, v. 26, n. 4, p. 714-718, 1997.
0100-4859
2-s2.0-3843097289
2-s2.0-3843097289.pdf
7445254960858159
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Revista Brasileira de Zootecnia
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 714-718
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1799965450600185856

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