Heterosis in preweaning traits in swine

Detalhes bibliográficos
Autor(a) principal: Ferraz, José Bento Sterman
Data de Publicação: 1991
Outros Autores: Duarte, Francisco Alberto de Moura
Tipo de documento: Artigo
Idioma: por
Título da fonte: Brazilian Journal of Veterinary Research and Animal Science
Texto Completo: https://www.revistas.usp.br/bjvras/article/view/51943
Resumo: Individual weights at birth (PO), 21 days(P21) and weaning (PD) of 746 piglets, being 201Landrace, 136 Wessex-Saddleback and 409 crossbred were analysed by the least squares method. Estimates of heterosis and weight gains were obtained by a fixed model considering the effects of year and season at birth, litter order, sex and litter sizes, besides paternal and maternal breed effects. The effects were significant and the crossbred piglets were heavier than purebreds. Heterosis estimates were 2.6% for PO, 9.7% for P21 and 13.9% for PD, indicating higher no additive gene effects when the age of piglets increase or their dependence on maternal hability becomes less important. Interactions between maternal and paternal breeds were significant. The results indicate that crossbreeding these two breeds is useful for piglets production.
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spelling Heterosis in preweaning traits in swineHeterose em suínos na fase de aleitamentoCruzamentos (suínos)Melhoramento animalGenética (heterose)Breeding of swineGenetic (heterosis)Individual weights at birth (PO), 21 days(P21) and weaning (PD) of 746 piglets, being 201Landrace, 136 Wessex-Saddleback and 409 crossbred were analysed by the least squares method. Estimates of heterosis and weight gains were obtained by a fixed model considering the effects of year and season at birth, litter order, sex and litter sizes, besides paternal and maternal breed effects. The effects were significant and the crossbred piglets were heavier than purebreds. Heterosis estimates were 2.6% for PO, 9.7% for P21 and 13.9% for PD, indicating higher no additive gene effects when the age of piglets increase or their dependence on maternal hability becomes less important. Interactions between maternal and paternal breeds were significant. The results indicate that crossbreeding these two breeds is useful for piglets production.Visando avaliar o ganho de produtividade, advindo da heterose, no peso de suínos em fase de aleitamento, analisaram-se os pesos ao nascimento(PO), 21 dias de idade (P21) e desmama (PD) de 746leitões, sendo 201 da raça Landrace, 136 Wessex-Saddleback e 409 mestiços, pelo método dos quadrados mínimos, considerando-se, ainda, os efeitos fixos de época e ano de nascimento, ordem do parto, sexo do leitão e tamanho da leitegada, além de raças paterna e materna e suas interações. Os efeitos não genéticos tiveram influência significativa em quase todas as características. Os mestiços mostraram, em geral, pesos superiores aos puros, com estimativas de heterose de 2,6% para PO, 9,7% para P21 e 13,9% para PD, indicando a importância da herança não aditiva à medida que os leitões ficam menos dependentes de suas mães. Os efeitos de interação entre as raças paterna e materna foram cada vez maiores com o avançar da idade. Os resultados indicam haver ganho de produtividade coma utilização deste tipo de cruzamento.Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia1991-12-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/bjvras/article/view/5194310.11606/issn.1678-4456.bjvras.1991.51943Brazilian Journal of Veterinary Research and Animal Science; Vol. 28 Núm. 2 (1991); 235-242Brazilian Journal of Veterinary Research and Animal Science; Vol. 28 No. 2 (1991); 235-242Brazilian Journal of Veterinary Research and Animal Science; v. 28 n. 2 (1991); 235-242Brazilian Journal of Veterinary Research and Animal Science; V. 28 N. 2 (1991); 235-2421678-44561413-9596reponame:Brazilian Journal of Veterinary Research and Animal Scienceinstname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)instacron:USPporhttps://www.revistas.usp.br/bjvras/article/view/51943/55994Ferraz, José Bento StermanDuarte, Francisco Alberto de Mourainfo:eu-repo/semantics/openAccess2020-06-23T04:56:19Zoai:revistas.usp.br:article/51943Revistahttps://www.revistas.usp.br/bjvrasPUBhttps://www.revistas.usp.br/bjvras/oaibjvras@usp.br1413-95961413-9596opendoar:https://www.revistas.usp.br/bjvras/index2023-01-12T16:43:23.771227Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)false
dc.title.none.fl_str_mv Heterosis in preweaning traits in swine
Heterose em suínos na fase de aleitamento
title Heterosis in preweaning traits in swine
spellingShingle Heterosis in preweaning traits in swine
Ferraz, José Bento Sterman
Cruzamentos (suínos)
Melhoramento animal
Genética (heterose)
Breeding of swine
Genetic (heterosis)
title_short Heterosis in preweaning traits in swine
title_full Heterosis in preweaning traits in swine
title_fullStr Heterosis in preweaning traits in swine
title_full_unstemmed Heterosis in preweaning traits in swine
title_sort Heterosis in preweaning traits in swine
author Ferraz, José Bento Sterman
author_facet Ferraz, José Bento Sterman
Duarte, Francisco Alberto de Moura
author_role author
author2 Duarte, Francisco Alberto de Moura
author2_role author
dc.contributor.author.fl_str_mv Ferraz, José Bento Sterman
Duarte, Francisco Alberto de Moura
dc.subject.por.fl_str_mv Cruzamentos (suínos)
Melhoramento animal
Genética (heterose)
Breeding of swine
Genetic (heterosis)
topic Cruzamentos (suínos)
Melhoramento animal
Genética (heterose)
Breeding of swine
Genetic (heterosis)
description Individual weights at birth (PO), 21 days(P21) and weaning (PD) of 746 piglets, being 201Landrace, 136 Wessex-Saddleback and 409 crossbred were analysed by the least squares method. Estimates of heterosis and weight gains were obtained by a fixed model considering the effects of year and season at birth, litter order, sex and litter sizes, besides paternal and maternal breed effects. The effects were significant and the crossbred piglets were heavier than purebreds. Heterosis estimates were 2.6% for PO, 9.7% for P21 and 13.9% for PD, indicating higher no additive gene effects when the age of piglets increase or their dependence on maternal hability becomes less important. Interactions between maternal and paternal breeds were significant. The results indicate that crossbreeding these two breeds is useful for piglets production.
publishDate 1991
dc.date.none.fl_str_mv 1991-12-02
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/bjvras/article/view/51943
10.11606/issn.1678-4456.bjvras.1991.51943
url https://www.revistas.usp.br/bjvras/article/view/51943
identifier_str_mv 10.11606/issn.1678-4456.bjvras.1991.51943
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://www.revistas.usp.br/bjvras/article/view/51943/55994
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
dc.source.none.fl_str_mv Brazilian Journal of Veterinary Research and Animal Science; Vol. 28 Núm. 2 (1991); 235-242
Brazilian Journal of Veterinary Research and Animal Science; Vol. 28 No. 2 (1991); 235-242
Brazilian Journal of Veterinary Research and Animal Science; v. 28 n. 2 (1991); 235-242
Brazilian Journal of Veterinary Research and Animal Science; V. 28 N. 2 (1991); 235-242
1678-4456
1413-9596
reponame:Brazilian Journal of Veterinary Research and Animal Science
instname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
instacron:USP
instname_str Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
instacron_str USP
institution USP
reponame_str Brazilian Journal of Veterinary Research and Animal Science
collection Brazilian Journal of Veterinary Research and Animal Science
repository.name.fl_str_mv Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
repository.mail.fl_str_mv bjvras@usp.br
_version_ 1797051563329454080

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