Heritability estimates for body weight and height at withers in Brazilian army horses
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência Rural |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012001200023 |
Resumo: | The aim of this study was to estimate the heritability for weight and height at withers of 260-780 days of age No Defined Breed (NDB) horses, at intervals of 40 days, which belong to the Brazilian Army cavalry. Thus, the model considered the direct genetic effects as random ones, as fixed, the effects of sex and year of birth and the linear effects of height at withers and age, as covariates for the analysis of body weight, whereas for the analysis of height, the linear effect of weight was included as a covariate. For the complete data, the estimated heritability coefficients were 0.40±0.034 and 0.70±0.019 for weight and height at withers, respectively, indicating that individual selection for these traits may be effective. On the other hand, for the data subdivided into age classes, the heritability coefficients ranged between 0.04 and 0.77 for weight, with the highest estimation for the class between 440 and 480 days of age, which indicates a higher possibility of weight selection during this period. For height, the heritability values ranged between 0.08 and 0.98, being the highest estimate found between 300 and 340 days of age, corroborating, thus, to the selection of the trait at this age. |
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Heritability estimates for body weight and height at withers in Brazilian army horsescavalrygrowth traitsselectionThe aim of this study was to estimate the heritability for weight and height at withers of 260-780 days of age No Defined Breed (NDB) horses, at intervals of 40 days, which belong to the Brazilian Army cavalry. Thus, the model considered the direct genetic effects as random ones, as fixed, the effects of sex and year of birth and the linear effects of height at withers and age, as covariates for the analysis of body weight, whereas for the analysis of height, the linear effect of weight was included as a covariate. For the complete data, the estimated heritability coefficients were 0.40±0.034 and 0.70±0.019 for weight and height at withers, respectively, indicating that individual selection for these traits may be effective. On the other hand, for the data subdivided into age classes, the heritability coefficients ranged between 0.04 and 0.77 for weight, with the highest estimation for the class between 440 and 480 days of age, which indicates a higher possibility of weight selection during this period. For height, the heritability values ranged between 0.08 and 0.98, being the highest estimate found between 300 and 340 days of age, corroborating, thus, to the selection of the trait at this age.Universidade Federal de Santa Maria2012-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012001200023Ciência Rural v.42 n.12 2012reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/S0103-84782012005000093info:eu-repo/semantics/openAccessTamioso,Priscilla ReginaCosmo,Tiago RafaelPimentel,Concepta Margaret McManusDias,Laila TalaricoTeixeira,Rodrigo de Almeidaeng2013-05-07T00:00:00ZRevista |
dc.title.none.fl_str_mv |
Heritability estimates for body weight and height at withers in Brazilian army horses |
title |
Heritability estimates for body weight and height at withers in Brazilian army horses |
spellingShingle |
Heritability estimates for body weight and height at withers in Brazilian army horses Tamioso,Priscilla Regina cavalry growth traits selection |
title_short |
Heritability estimates for body weight and height at withers in Brazilian army horses |
title_full |
Heritability estimates for body weight and height at withers in Brazilian army horses |
title_fullStr |
Heritability estimates for body weight and height at withers in Brazilian army horses |
title_full_unstemmed |
Heritability estimates for body weight and height at withers in Brazilian army horses |
title_sort |
Heritability estimates for body weight and height at withers in Brazilian army horses |
author |
Tamioso,Priscilla Regina |
author_facet |
Tamioso,Priscilla Regina Cosmo,Tiago Rafael Pimentel,Concepta Margaret McManus Dias,Laila Talarico Teixeira,Rodrigo de Almeida |
author_role |
author |
author2 |
Cosmo,Tiago Rafael Pimentel,Concepta Margaret McManus Dias,Laila Talarico Teixeira,Rodrigo de Almeida |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Tamioso,Priscilla Regina Cosmo,Tiago Rafael Pimentel,Concepta Margaret McManus Dias,Laila Talarico Teixeira,Rodrigo de Almeida |
dc.subject.por.fl_str_mv |
cavalry growth traits selection |
topic |
cavalry growth traits selection |
description |
The aim of this study was to estimate the heritability for weight and height at withers of 260-780 days of age No Defined Breed (NDB) horses, at intervals of 40 days, which belong to the Brazilian Army cavalry. Thus, the model considered the direct genetic effects as random ones, as fixed, the effects of sex and year of birth and the linear effects of height at withers and age, as covariates for the analysis of body weight, whereas for the analysis of height, the linear effect of weight was included as a covariate. For the complete data, the estimated heritability coefficients were 0.40±0.034 and 0.70±0.019 for weight and height at withers, respectively, indicating that individual selection for these traits may be effective. On the other hand, for the data subdivided into age classes, the heritability coefficients ranged between 0.04 and 0.77 for weight, with the highest estimation for the class between 440 and 480 days of age, which indicates a higher possibility of weight selection during this period. For height, the heritability values ranged between 0.08 and 0.98, being the highest estimate found between 300 and 340 days of age, corroborating, thus, to the selection of the trait at this age. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-12-01 |
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=S0103-84782012001200023 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012001200023 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-84782012005000093 |
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 |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Rural v.42 n.12 2012 reponame:Ciência Rural instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Rural |
collection |
Ciência Rural |
repository.name.fl_str_mv |
|
repository.mail.fl_str_mv |
|
_version_ |
1749140541976608768 |