Genetic parameters and relationships between growth traits and scrotal circumference measured at different ages in Nellore cattle

Detalhes bibliográficos
Autor(a) principal: Boligon, Arione Augusti [UNESP]
Data de Publicação: 2011
Outros Autores: Baldi, Fernando [UNESP], Albuquerque, Lucia Galvão de [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S1415-47572011005000004
http://hdl.handle.net/11449/4836
Resumo: Records from 106,212 Nellore animals, born between 1998 and 2006, were used to estimate (co)variance components and genetic parameters for birth weight (BW), average weight gains from birth to weaning (GBW), average weight gains from weaning to after yearling (GWAY), weaning hip height (WHH), postweaning hip height (PHH) and scrotal circumferences at 9 (SC9), 12 (SC12) and 15 (SC15) months of age. (Co)variance components were estimated by an animal model using multi-trait analysis. Heritability estimates for BW, GBW, GWAY, WHH, PHH, SC9, SC12 and SC15 were 0.31 ± 0.01; 0.25 ± 0.02; 0.30 ± 0.04; 0.51 ± 0.04; 0.54 ± 0.04; 0.39 ± 0.01; 0.41 ± 0.01 and 0.44 ± 0.02, respectively. Genetic correlations between growth traits ranged from 0.09 ± 0.01 to 0.88 ± 0.01, thereby implying that, at any age, selection to increase average weight gains will also increase stature. Genetic correlations between BW and average weight gains with scrotal circumferences were all positive and moderate (0.15 ± 0.03 to 0.38 ± 0.01). on the other hand, positive and low genetic associations were estimated between hip height and scrotal circumference at different ages (0.09 ± 0.01 to 0.17 ± 0.02). The results of this study pointed out that selection to larger scrotal circumferences in males will promote changes in average weight gains. In order to obtain Nellore cattle with the stature and size suitable for the production system, both weight gain and hip height should be included in a selection index.
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spelling Genetic parameters and relationships between growth traits and scrotal circumference measured at different ages in Nellore cattleBeef cattleGenetic correlationHip heightaverage weight gainRecords from 106,212 Nellore animals, born between 1998 and 2006, were used to estimate (co)variance components and genetic parameters for birth weight (BW), average weight gains from birth to weaning (GBW), average weight gains from weaning to after yearling (GWAY), weaning hip height (WHH), postweaning hip height (PHH) and scrotal circumferences at 9 (SC9), 12 (SC12) and 15 (SC15) months of age. (Co)variance components were estimated by an animal model using multi-trait analysis. Heritability estimates for BW, GBW, GWAY, WHH, PHH, SC9, SC12 and SC15 were 0.31 ± 0.01; 0.25 ± 0.02; 0.30 ± 0.04; 0.51 ± 0.04; 0.54 ± 0.04; 0.39 ± 0.01; 0.41 ± 0.01 and 0.44 ± 0.02, respectively. Genetic correlations between growth traits ranged from 0.09 ± 0.01 to 0.88 ± 0.01, thereby implying that, at any age, selection to increase average weight gains will also increase stature. Genetic correlations between BW and average weight gains with scrotal circumferences were all positive and moderate (0.15 ± 0.03 to 0.38 ± 0.01). on the other hand, positive and low genetic associations were estimated between hip height and scrotal circumference at different ages (0.09 ± 0.01 to 0.17 ± 0.02). The results of this study pointed out that selection to larger scrotal circumferences in males will promote changes in average weight gains. In order to obtain Nellore cattle with the stature and size suitable for the production system, both weight gain and hip height should be included in a selection index.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Universidade Estadual Paulista Júlio de Mesquita Filho Faculdade de Ciências Agrárias e Veterinárias Departamento de ZootecniaUniversidade Estadual Paulista Júlio de Mesquita Filho Faculdade de Ciências Agrárias e Veterinárias Departamento de ZootecniaSociedade Brasileira de GenéticaUniversidade Estadual Paulista (Unesp)Boligon, Arione Augusti [UNESP]Baldi, Fernando [UNESP]Albuquerque, Lucia Galvão de [UNESP]2014-05-20T13:18:59Z2014-05-20T13:18:59Z2011-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article225-230application/pdfhttp://dx.doi.org/10.1590/S1415-47572011005000004Genetics and Molecular Biology. Sociedade Brasileira de Genética, v. 34, n. 2, p. 225-230, 2011.1415-4757http://hdl.handle.net/11449/483610.1590/S1415-47572011005000004S1415-47572011000200010WOS:000290865300010S1415-47572011000200010.pdf5866981114947883SciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGenetics and Molecular Biology1.4930,638info:eu-repo/semantics/openAccess2024-06-07T18:40:39Zoai:repositorio.unesp.br:11449/4836Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:53:27.020518Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Genetic parameters and relationships between growth traits and scrotal circumference measured at different ages in Nellore cattle
title Genetic parameters and relationships between growth traits and scrotal circumference measured at different ages in Nellore cattle
spellingShingle Genetic parameters and relationships between growth traits and scrotal circumference measured at different ages in Nellore cattle
Boligon, Arione Augusti [UNESP]
Beef cattle
Genetic correlation
Hip height
average weight gain
title_short Genetic parameters and relationships between growth traits and scrotal circumference measured at different ages in Nellore cattle
title_full Genetic parameters and relationships between growth traits and scrotal circumference measured at different ages in Nellore cattle
title_fullStr Genetic parameters and relationships between growth traits and scrotal circumference measured at different ages in Nellore cattle
title_full_unstemmed Genetic parameters and relationships between growth traits and scrotal circumference measured at different ages in Nellore cattle
title_sort Genetic parameters and relationships between growth traits and scrotal circumference measured at different ages in Nellore cattle
author Boligon, Arione Augusti [UNESP]
author_facet Boligon, Arione Augusti [UNESP]
Baldi, Fernando [UNESP]
Albuquerque, Lucia Galvão de [UNESP]
author_role author
author2 Baldi, Fernando [UNESP]
Albuquerque, Lucia Galvão de [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Boligon, Arione Augusti [UNESP]
Baldi, Fernando [UNESP]
Albuquerque, Lucia Galvão de [UNESP]
dc.subject.por.fl_str_mv Beef cattle
Genetic correlation
Hip height
average weight gain
topic Beef cattle
Genetic correlation
Hip height
average weight gain
description Records from 106,212 Nellore animals, born between 1998 and 2006, were used to estimate (co)variance components and genetic parameters for birth weight (BW), average weight gains from birth to weaning (GBW), average weight gains from weaning to after yearling (GWAY), weaning hip height (WHH), postweaning hip height (PHH) and scrotal circumferences at 9 (SC9), 12 (SC12) and 15 (SC15) months of age. (Co)variance components were estimated by an animal model using multi-trait analysis. Heritability estimates for BW, GBW, GWAY, WHH, PHH, SC9, SC12 and SC15 were 0.31 ± 0.01; 0.25 ± 0.02; 0.30 ± 0.04; 0.51 ± 0.04; 0.54 ± 0.04; 0.39 ± 0.01; 0.41 ± 0.01 and 0.44 ± 0.02, respectively. Genetic correlations between growth traits ranged from 0.09 ± 0.01 to 0.88 ± 0.01, thereby implying that, at any age, selection to increase average weight gains will also increase stature. Genetic correlations between BW and average weight gains with scrotal circumferences were all positive and moderate (0.15 ± 0.03 to 0.38 ± 0.01). on the other hand, positive and low genetic associations were estimated between hip height and scrotal circumference at different ages (0.09 ± 0.01 to 0.17 ± 0.02). The results of this study pointed out that selection to larger scrotal circumferences in males will promote changes in average weight gains. In order to obtain Nellore cattle with the stature and size suitable for the production system, both weight gain and hip height should be included in a selection index.
publishDate 2011
dc.date.none.fl_str_mv 2011-01-01
2014-05-20T13:18:59Z
2014-05-20T13:18:59Z
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://dx.doi.org/10.1590/S1415-47572011005000004
Genetics and Molecular Biology. Sociedade Brasileira de Genética, v. 34, n. 2, p. 225-230, 2011.
1415-4757
http://hdl.handle.net/11449/4836
10.1590/S1415-47572011005000004
S1415-47572011000200010
WOS:000290865300010
S1415-47572011000200010.pdf
5866981114947883
url http://dx.doi.org/10.1590/S1415-47572011005000004
http://hdl.handle.net/11449/4836
identifier_str_mv Genetics and Molecular Biology. Sociedade Brasileira de Genética, v. 34, n. 2, p. 225-230, 2011.
1415-4757
10.1590/S1415-47572011005000004
S1415-47572011000200010
WOS:000290865300010
S1415-47572011000200010.pdf
5866981114947883
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Genetics and Molecular Biology
1.493
0,638
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 225-230
application/pdf
dc.publisher.none.fl_str_mv Sociedade Brasileira de Genética
publisher.none.fl_str_mv Sociedade Brasileira de Genética
dc.source.none.fl_str_mv SciELO
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)
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