Estimates of genetic parameters of growth traits of Nellore cattle in the Midwest region of Brazil
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Saúde e Produção Animal |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-99402014000400006 |
Resumo: | Records of birth weight (BW) and weights standardized to 210 (W210); 365 (W365) and 550 (W550) of age in the Nellore breed were used to estimate variance components of genetic effects and predict genetic values of sires. The model included the fixed effects of contemporary group and cow age at calving as co-variable, and the additive and maternal genetic, permanent maternal environmental, and temporary environmental random effects. Estimates of means and standard deviations for BW, W210; W365 and W550 were 32.76 ± 3.74; 184.30 ± 29.02; 240.31 ± 41.85 and 322.12 ± 60.77, respectively. A significant additive genetic variability was detected for all weights. The permanent maternal environmental variance showed greater relevance on weaning weight, and it was practically inexistent after weaning. For the maternal genetic variance, the estimate for birth weight was more significant as compared with weaning weight. The estimated heritability values for BW, W210; W365 and W550 were 0.37 ± 0.02; 0.36 ± 0.03; 031 ± 0.01 and 0.38 ± 0.02, respectively. Genetic correlations between birth weight and other weights were of low magnitude, with high values of weights at other ages. The use of sires of higher genetic value for total maternal effect makes it possible to use sires that are more positive for weaning weight and also for year and yearling weight. |
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Estimates of genetic parameters of growth traits of Nellore cattle in the Midwest region of Brazilanimal breedingbeef cattlegenetic evaluationRecords of birth weight (BW) and weights standardized to 210 (W210); 365 (W365) and 550 (W550) of age in the Nellore breed were used to estimate variance components of genetic effects and predict genetic values of sires. The model included the fixed effects of contemporary group and cow age at calving as co-variable, and the additive and maternal genetic, permanent maternal environmental, and temporary environmental random effects. Estimates of means and standard deviations for BW, W210; W365 and W550 were 32.76 ± 3.74; 184.30 ± 29.02; 240.31 ± 41.85 and 322.12 ± 60.77, respectively. A significant additive genetic variability was detected for all weights. The permanent maternal environmental variance showed greater relevance on weaning weight, and it was practically inexistent after weaning. For the maternal genetic variance, the estimate for birth weight was more significant as compared with weaning weight. The estimated heritability values for BW, W210; W365 and W550 were 0.37 ± 0.02; 0.36 ± 0.03; 031 ± 0.01 and 0.38 ± 0.02, respectively. Genetic correlations between birth weight and other weights were of low magnitude, with high values of weights at other ages. The use of sires of higher genetic value for total maternal effect makes it possible to use sires that are more positive for weaning weight and also for year and yearling weight.UFBA - Universidade Federal da Bahia2014-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-99402014000400006Revista Brasileira de Saúde e Produção Animal v.15 n.4 2014reponame:Revista Brasileira de Saúde e Produção Animalinstname:Universidade Federal da Bahia (UFBA)instacron:UFBA10.1590/S1519-99402014000400006info:eu-repo/semantics/openAccessAraújo,Cláudio Vieira deLôbo,Raysildo BarbosaFigueiredo,Luis Gustavo GirardiMousquer,Cláudio JonassonLaureano,Monyka Marianna MassoloniBittencourt,Thereza Cristina Borio dos Santos Calmon deAraújo,Simone Inoeeng2015-02-02T00:00:00Zoai:scielo:S1519-99402014000400006Revistahttp://www.rbspa.ufba.br/PUBhttps://old.scielo.br/oai/scielo-oai.php||rbspa@ufba.br1519-99401519-9940opendoar:2015-02-02T00:00Revista Brasileira de Saúde e Produção Animal - Universidade Federal da Bahia (UFBA)false |
dc.title.none.fl_str_mv |
Estimates of genetic parameters of growth traits of Nellore cattle in the Midwest region of Brazil |
title |
Estimates of genetic parameters of growth traits of Nellore cattle in the Midwest region of Brazil |
spellingShingle |
Estimates of genetic parameters of growth traits of Nellore cattle in the Midwest region of Brazil Araújo,Cláudio Vieira de animal breeding beef cattle genetic evaluation |
title_short |
Estimates of genetic parameters of growth traits of Nellore cattle in the Midwest region of Brazil |
title_full |
Estimates of genetic parameters of growth traits of Nellore cattle in the Midwest region of Brazil |
title_fullStr |
Estimates of genetic parameters of growth traits of Nellore cattle in the Midwest region of Brazil |
title_full_unstemmed |
Estimates of genetic parameters of growth traits of Nellore cattle in the Midwest region of Brazil |
title_sort |
Estimates of genetic parameters of growth traits of Nellore cattle in the Midwest region of Brazil |
author |
Araújo,Cláudio Vieira de |
author_facet |
Araújo,Cláudio Vieira de Lôbo,Raysildo Barbosa Figueiredo,Luis Gustavo Girardi Mousquer,Cláudio Jonasson Laureano,Monyka Marianna Massoloni Bittencourt,Thereza Cristina Borio dos Santos Calmon de Araújo,Simone Inoe |
author_role |
author |
author2 |
Lôbo,Raysildo Barbosa Figueiredo,Luis Gustavo Girardi Mousquer,Cláudio Jonasson Laureano,Monyka Marianna Massoloni Bittencourt,Thereza Cristina Borio dos Santos Calmon de Araújo,Simone Inoe |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Araújo,Cláudio Vieira de Lôbo,Raysildo Barbosa Figueiredo,Luis Gustavo Girardi Mousquer,Cláudio Jonasson Laureano,Monyka Marianna Massoloni Bittencourt,Thereza Cristina Borio dos Santos Calmon de Araújo,Simone Inoe |
dc.subject.por.fl_str_mv |
animal breeding beef cattle genetic evaluation |
topic |
animal breeding beef cattle genetic evaluation |
description |
Records of birth weight (BW) and weights standardized to 210 (W210); 365 (W365) and 550 (W550) of age in the Nellore breed were used to estimate variance components of genetic effects and predict genetic values of sires. The model included the fixed effects of contemporary group and cow age at calving as co-variable, and the additive and maternal genetic, permanent maternal environmental, and temporary environmental random effects. Estimates of means and standard deviations for BW, W210; W365 and W550 were 32.76 ± 3.74; 184.30 ± 29.02; 240.31 ± 41.85 and 322.12 ± 60.77, respectively. A significant additive genetic variability was detected for all weights. The permanent maternal environmental variance showed greater relevance on weaning weight, and it was practically inexistent after weaning. For the maternal genetic variance, the estimate for birth weight was more significant as compared with weaning weight. The estimated heritability values for BW, W210; W365 and W550 were 0.37 ± 0.02; 0.36 ± 0.03; 031 ± 0.01 and 0.38 ± 0.02, respectively. Genetic correlations between birth weight and other weights were of low magnitude, with high values of weights at other ages. The use of sires of higher genetic value for total maternal effect makes it possible to use sires that are more positive for weaning weight and also for year and yearling weight. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12-01 |
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=S1519-99402014000400006 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-99402014000400006 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1519-99402014000400006 |
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 |
UFBA - Universidade Federal da Bahia |
publisher.none.fl_str_mv |
UFBA - Universidade Federal da Bahia |
dc.source.none.fl_str_mv |
Revista Brasileira de Saúde e Produção Animal v.15 n.4 2014 reponame:Revista Brasileira de Saúde e Produção Animal instname:Universidade Federal da Bahia (UFBA) instacron:UFBA |
instname_str |
Universidade Federal da Bahia (UFBA) |
instacron_str |
UFBA |
institution |
UFBA |
reponame_str |
Revista Brasileira de Saúde e Produção Animal |
collection |
Revista Brasileira de Saúde e Produção Animal |
repository.name.fl_str_mv |
Revista Brasileira de Saúde e Produção Animal - Universidade Federal da Bahia (UFBA) |
repository.mail.fl_str_mv |
||rbspa@ufba.br |
_version_ |
1750297507275997184 |