Associations among growth, scrotal circumference, and visual score of beef cattle in performance tests on pasture or in feedlots

Detalhes bibliográficos
Autor(a) principal: Raidan,Fernanda Santos Silva
Data de Publicação: 2017
Outros Autores: Tineo,Juan Salvador Andrade, Moraes,Mariana Mamedes de, Escarce,Thiago Campos, Araújo,Andresa Eva Melo de, Gomes,Muller Marques de Carvalho, Ventura,Henrique Torres, Toral,Fabio Luiz Buranelo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Zootecnia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000400309
Resumo: ABSTRACT This study aimed to evaluate associations among final weight (FW), average daily gain (ADG), scrotal circumference (SC), and visual score (VS) of beef cattle in performance tests on pasture or in feedlots. Genetic parameters for FW, ADG, SC, and VS of young Nellore bulls performance-tested on pasture or in feedlots were evaluated by mixed model. The performance test and final age were considered as fixed effects and additive genetic and residual effects were considered as random effects. Additive genetic and residual variances for final weight and average daily gain were smaller on pasture than in feedlots. There was no difference between genetic and residual variances and heritability for scrotal circumference on pasture or in feedlots. Genetic variance and heritability for visual score on pasture were smaller than those in feedlots. The posterior means (and highest posterior density intervals with 90% of samples (HPD90) in parentheses) for heritability were 0.46 (0.42; 0.50) and 0.49 (0.41; 0.55) for FW, 0.25 (0.22; 0.29) and 0.25 (0.19; 0.30) for ADG, 0.56 (0.51; 0.61) and 0.60 (0.51; 0.68) for SC, and 0.31 (0.27; 0.34) and 0.42 (0.36; 0.48) for VS on pasture or in feedlots, respectively. The genetic correlations (posterior means with HPD90 in parentheses) were 0.74 (0.69; 0.79) and 0.67 (0.58; 0.77) between FW and ADG; 0.49 (0.43; 0.55) and 0.60 (0.53; 0.68) for FW and SC; 0.79 (0.75; 0.83) and 0.85 (0.80; 0.90) for FW and VS; 0.37 (0.29; 0.46) and 0.34 (0.19; 0.50) for ADG and SC; 0.65 (0.59; 0.71) and 0.74 (0.64; 0.84) for ADG and VS; and 0.46 (0.39; 0.52) and 0.53 (0.44; 0.62) for SC and VS, obtained on pasture or in feedlots, respectively. The genetic and residual (co)variances of growth, scrotal circumference, and visual score of beef cattle vary across environments; however, genetic and residual correlation and efficiency of correlated response among these traits remain constant on pasture or in feedlots.
id SBZ-1_39b3d2d6da8cdd25219de0fd758418f4
oai_identifier_str oai:scielo:S1516-35982017000400309
network_acronym_str SBZ-1
network_name_str Revista Brasileira de Zootecnia (Online)
repository_id_str
spelling Associations among growth, scrotal circumference, and visual score of beef cattle in performance tests on pasture or in feedlotsBos indicusgenetic correlationheritabilityphenotypic selectionABSTRACT This study aimed to evaluate associations among final weight (FW), average daily gain (ADG), scrotal circumference (SC), and visual score (VS) of beef cattle in performance tests on pasture or in feedlots. Genetic parameters for FW, ADG, SC, and VS of young Nellore bulls performance-tested on pasture or in feedlots were evaluated by mixed model. The performance test and final age were considered as fixed effects and additive genetic and residual effects were considered as random effects. Additive genetic and residual variances for final weight and average daily gain were smaller on pasture than in feedlots. There was no difference between genetic and residual variances and heritability for scrotal circumference on pasture or in feedlots. Genetic variance and heritability for visual score on pasture were smaller than those in feedlots. The posterior means (and highest posterior density intervals with 90% of samples (HPD90) in parentheses) for heritability were 0.46 (0.42; 0.50) and 0.49 (0.41; 0.55) for FW, 0.25 (0.22; 0.29) and 0.25 (0.19; 0.30) for ADG, 0.56 (0.51; 0.61) and 0.60 (0.51; 0.68) for SC, and 0.31 (0.27; 0.34) and 0.42 (0.36; 0.48) for VS on pasture or in feedlots, respectively. The genetic correlations (posterior means with HPD90 in parentheses) were 0.74 (0.69; 0.79) and 0.67 (0.58; 0.77) between FW and ADG; 0.49 (0.43; 0.55) and 0.60 (0.53; 0.68) for FW and SC; 0.79 (0.75; 0.83) and 0.85 (0.80; 0.90) for FW and VS; 0.37 (0.29; 0.46) and 0.34 (0.19; 0.50) for ADG and SC; 0.65 (0.59; 0.71) and 0.74 (0.64; 0.84) for ADG and VS; and 0.46 (0.39; 0.52) and 0.53 (0.44; 0.62) for SC and VS, obtained on pasture or in feedlots, respectively. The genetic and residual (co)variances of growth, scrotal circumference, and visual score of beef cattle vary across environments; however, genetic and residual correlation and efficiency of correlated response among these traits remain constant on pasture or in feedlots.Sociedade Brasileira de Zootecnia2017-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000400309Revista Brasileira de Zootecnia v.46 n.4 2017reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.1590/s1806-92902017000400006info:eu-repo/semantics/openAccessRaidan,Fernanda Santos SilvaTineo,Juan Salvador AndradeMoraes,Mariana Mamedes deEscarce,Thiago CamposAraújo,Andresa Eva Melo deGomes,Muller Marques de CarvalhoVentura,Henrique TorresToral,Fabio Luiz Buraneloeng2017-06-06T00:00:00Zoai:scielo:S1516-35982017000400309Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2017-06-06T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false
dc.title.none.fl_str_mv Associations among growth, scrotal circumference, and visual score of beef cattle in performance tests on pasture or in feedlots
title Associations among growth, scrotal circumference, and visual score of beef cattle in performance tests on pasture or in feedlots
spellingShingle Associations among growth, scrotal circumference, and visual score of beef cattle in performance tests on pasture or in feedlots
Raidan,Fernanda Santos Silva
Bos indicus
genetic correlation
heritability
phenotypic selection
title_short Associations among growth, scrotal circumference, and visual score of beef cattle in performance tests on pasture or in feedlots
title_full Associations among growth, scrotal circumference, and visual score of beef cattle in performance tests on pasture or in feedlots
title_fullStr Associations among growth, scrotal circumference, and visual score of beef cattle in performance tests on pasture or in feedlots
title_full_unstemmed Associations among growth, scrotal circumference, and visual score of beef cattle in performance tests on pasture or in feedlots
title_sort Associations among growth, scrotal circumference, and visual score of beef cattle in performance tests on pasture or in feedlots
author Raidan,Fernanda Santos Silva
author_facet Raidan,Fernanda Santos Silva
Tineo,Juan Salvador Andrade
Moraes,Mariana Mamedes de
Escarce,Thiago Campos
Araújo,Andresa Eva Melo de
Gomes,Muller Marques de Carvalho
Ventura,Henrique Torres
Toral,Fabio Luiz Buranelo
author_role author
author2 Tineo,Juan Salvador Andrade
Moraes,Mariana Mamedes de
Escarce,Thiago Campos
Araújo,Andresa Eva Melo de
Gomes,Muller Marques de Carvalho
Ventura,Henrique Torres
Toral,Fabio Luiz Buranelo
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Raidan,Fernanda Santos Silva
Tineo,Juan Salvador Andrade
Moraes,Mariana Mamedes de
Escarce,Thiago Campos
Araújo,Andresa Eva Melo de
Gomes,Muller Marques de Carvalho
Ventura,Henrique Torres
Toral,Fabio Luiz Buranelo
dc.subject.por.fl_str_mv Bos indicus
genetic correlation
heritability
phenotypic selection
topic Bos indicus
genetic correlation
heritability
phenotypic selection
description ABSTRACT This study aimed to evaluate associations among final weight (FW), average daily gain (ADG), scrotal circumference (SC), and visual score (VS) of beef cattle in performance tests on pasture or in feedlots. Genetic parameters for FW, ADG, SC, and VS of young Nellore bulls performance-tested on pasture or in feedlots were evaluated by mixed model. The performance test and final age were considered as fixed effects and additive genetic and residual effects were considered as random effects. Additive genetic and residual variances for final weight and average daily gain were smaller on pasture than in feedlots. There was no difference between genetic and residual variances and heritability for scrotal circumference on pasture or in feedlots. Genetic variance and heritability for visual score on pasture were smaller than those in feedlots. The posterior means (and highest posterior density intervals with 90% of samples (HPD90) in parentheses) for heritability were 0.46 (0.42; 0.50) and 0.49 (0.41; 0.55) for FW, 0.25 (0.22; 0.29) and 0.25 (0.19; 0.30) for ADG, 0.56 (0.51; 0.61) and 0.60 (0.51; 0.68) for SC, and 0.31 (0.27; 0.34) and 0.42 (0.36; 0.48) for VS on pasture or in feedlots, respectively. The genetic correlations (posterior means with HPD90 in parentheses) were 0.74 (0.69; 0.79) and 0.67 (0.58; 0.77) between FW and ADG; 0.49 (0.43; 0.55) and 0.60 (0.53; 0.68) for FW and SC; 0.79 (0.75; 0.83) and 0.85 (0.80; 0.90) for FW and VS; 0.37 (0.29; 0.46) and 0.34 (0.19; 0.50) for ADG and SC; 0.65 (0.59; 0.71) and 0.74 (0.64; 0.84) for ADG and VS; and 0.46 (0.39; 0.52) and 0.53 (0.44; 0.62) for SC and VS, obtained on pasture or in feedlots, respectively. The genetic and residual (co)variances of growth, scrotal circumference, and visual score of beef cattle vary across environments; however, genetic and residual correlation and efficiency of correlated response among these traits remain constant on pasture or in feedlots.
publishDate 2017
dc.date.none.fl_str_mv 2017-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000400309
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000400309
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1806-92902017000400006
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
dc.source.none.fl_str_mv Revista Brasileira de Zootecnia v.46 n.4 2017
reponame:Revista Brasileira de Zootecnia (Online)
instname:Sociedade Brasileira de Zootecnia (SBZ)
instacron:SBZ
instname_str Sociedade Brasileira de Zootecnia (SBZ)
instacron_str SBZ
institution SBZ
reponame_str Revista Brasileira de Zootecnia (Online)
collection Revista Brasileira de Zootecnia (Online)
repository.name.fl_str_mv Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)
repository.mail.fl_str_mv ||bz@sbz.org.br|| secretariarbz@sbz.org.br
_version_ 1750318152280965120