Genetic parameters and relationships between growth traits and scrotal circumference measured at different ages in Nellore cattle
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
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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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) |
repository.mail.fl_str_mv |
|
_version_ |
1808128579401154560 |