Evaluation of Bayesian models for analysis of crude protein requirement for pigs of Brazilian Piau breed
Autor(a) principal: | |
---|---|
Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001300208 |
Resumo: | ABSTRACT: We evaluated the inclusion of information on genetic relationship into the analysis of crude protein requirement in diets for pigs of Brazilian Piau breed, using Bayesian inference. The animals were assigned to treatments in a completely randomized design in factorial scheme 4 × 2 (crude protein levels × sex) with 12 repetitions per treatment. The evaluations were carried out in the initial, growing and finishing phases, and after slaughter. The traits evaluated were feed conversion (FC), backfat thickness (BF), daily weight gain (DWG), daily feed intake (DFI) and some carcass cuts. Three models were considered to evaluate the inclusion of information on genetic relationship into the analysis: Model I, a simple linear model; Model II, the same effects of Model I with addition of the independent random effect of animal; and Model III, the same effects of Model II, but including the genetic relationship between the animals. Model III presented the best fit and was considered for later inferences. Crude protein (CP) levels did not significantly influence any of the evaluated traits. The effect of sex was significant only for the growing phase, while its interaction with protein levels presented an opposite result for all evaluated traits. Additionally, CP levels of 10.2 %, 9.6 % and 9.0 % can be used in diets for pigs of Brazilian Piau breed in the initial, growing and finishing phases, respectively. |
id |
USP-18_48c1a6ded1212fe074dbbd1f8f12a1e6 |
---|---|
oai_identifier_str |
oai:scielo:S0103-90162019001300208 |
network_acronym_str |
USP-18 |
network_name_str |
Scientia Agrícola (Online) |
repository_id_str |
|
spelling |
Evaluation of Bayesian models for analysis of crude protein requirement for pigs of Brazilian Piau breedBayesian inferencegenetic relationshipmodel selectionperformanceABSTRACT: We evaluated the inclusion of information on genetic relationship into the analysis of crude protein requirement in diets for pigs of Brazilian Piau breed, using Bayesian inference. The animals were assigned to treatments in a completely randomized design in factorial scheme 4 × 2 (crude protein levels × sex) with 12 repetitions per treatment. The evaluations were carried out in the initial, growing and finishing phases, and after slaughter. The traits evaluated were feed conversion (FC), backfat thickness (BF), daily weight gain (DWG), daily feed intake (DFI) and some carcass cuts. Three models were considered to evaluate the inclusion of information on genetic relationship into the analysis: Model I, a simple linear model; Model II, the same effects of Model I with addition of the independent random effect of animal; and Model III, the same effects of Model II, but including the genetic relationship between the animals. Model III presented the best fit and was considered for later inferences. Crude protein (CP) levels did not significantly influence any of the evaluated traits. The effect of sex was significant only for the growing phase, while its interaction with protein levels presented an opposite result for all evaluated traits. Additionally, CP levels of 10.2 %, 9.6 % and 9.0 % can be used in diets for pigs of Brazilian Piau breed in the initial, growing and finishing phases, respectively.Escola Superior de Agricultura "Luiz de Queiroz"2019-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001300208Scientia Agricola v.76 n.3 2019reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/1678-992x-2017-0256info:eu-repo/semantics/openAccessSilva,Hugo TeixeiraSilva,Fabyano Fonseca eFerreira,Aloízio SoaresVeroneze,RenataLopes,Paulo Sávioeng2019-02-28T00:00:00Zoai:scielo:S0103-90162019001300208Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2019-02-28T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Evaluation of Bayesian models for analysis of crude protein requirement for pigs of Brazilian Piau breed |
title |
Evaluation of Bayesian models for analysis of crude protein requirement for pigs of Brazilian Piau breed |
spellingShingle |
Evaluation of Bayesian models for analysis of crude protein requirement for pigs of Brazilian Piau breed Silva,Hugo Teixeira Bayesian inference genetic relationship model selection performance |
title_short |
Evaluation of Bayesian models for analysis of crude protein requirement for pigs of Brazilian Piau breed |
title_full |
Evaluation of Bayesian models for analysis of crude protein requirement for pigs of Brazilian Piau breed |
title_fullStr |
Evaluation of Bayesian models for analysis of crude protein requirement for pigs of Brazilian Piau breed |
title_full_unstemmed |
Evaluation of Bayesian models for analysis of crude protein requirement for pigs of Brazilian Piau breed |
title_sort |
Evaluation of Bayesian models for analysis of crude protein requirement for pigs of Brazilian Piau breed |
author |
Silva,Hugo Teixeira |
author_facet |
Silva,Hugo Teixeira Silva,Fabyano Fonseca e Ferreira,Aloízio Soares Veroneze,Renata Lopes,Paulo Sávio |
author_role |
author |
author2 |
Silva,Fabyano Fonseca e Ferreira,Aloízio Soares Veroneze,Renata Lopes,Paulo Sávio |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Silva,Hugo Teixeira Silva,Fabyano Fonseca e Ferreira,Aloízio Soares Veroneze,Renata Lopes,Paulo Sávio |
dc.subject.por.fl_str_mv |
Bayesian inference genetic relationship model selection performance |
topic |
Bayesian inference genetic relationship model selection performance |
description |
ABSTRACT: We evaluated the inclusion of information on genetic relationship into the analysis of crude protein requirement in diets for pigs of Brazilian Piau breed, using Bayesian inference. The animals were assigned to treatments in a completely randomized design in factorial scheme 4 × 2 (crude protein levels × sex) with 12 repetitions per treatment. The evaluations were carried out in the initial, growing and finishing phases, and after slaughter. The traits evaluated were feed conversion (FC), backfat thickness (BF), daily weight gain (DWG), daily feed intake (DFI) and some carcass cuts. Three models were considered to evaluate the inclusion of information on genetic relationship into the analysis: Model I, a simple linear model; Model II, the same effects of Model I with addition of the independent random effect of animal; and Model III, the same effects of Model II, but including the genetic relationship between the animals. Model III presented the best fit and was considered for later inferences. Crude protein (CP) levels did not significantly influence any of the evaluated traits. The effect of sex was significant only for the growing phase, while its interaction with protein levels presented an opposite result for all evaluated traits. Additionally, CP levels of 10.2 %, 9.6 % and 9.0 % can be used in diets for pigs of Brazilian Piau breed in the initial, growing and finishing phases, respectively. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-05-01 |
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=S0103-90162019001300208 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001300208 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1678-992x-2017-0256 |
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 |
Escola Superior de Agricultura "Luiz de Queiroz" |
publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
dc.source.none.fl_str_mv |
Scientia Agricola v.76 n.3 2019 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1748936464824008704 |