Phenotypic study of egg production curve in commercial broiler breeders using Compartmental function
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
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=S1516-35982018000100517 |
Resumo: | ABSTRACT The objective of this study was to analyze the effect of environmental factors on egg production curve traits in broiler breeders. The weekly egg production records of birds collected from four different flocks were used to estimate the egg production curve parameters using the Compartmental function (y = A(1 − exp−b(t − d))exp−ct). The coefficient of determination (R2) obtained by the model was 0.98. Least squares analysis of variance indicated that the environmental factors such as hatchability and flock had significant effects on egg production curve traits. The highest correlation was observed between the weekly potential maximum yield and yield at the beginning of laying, whereas the lowest correlation was found between the weekly potential maximum production and production after peak yield. Associated factors with the increasing slope of egg production curves had a negative correlation with the decrease after peak. The correlation analysis showed that peak production had a negative and significant relationship with production towards peak and time to reach peak production, while there was a positive and significant correlation with the slope decrease after peak yield. The Compartmental function can be used as an alternative model to predict egg production traits in broiler breeders. |
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Revista Brasileira de Zootecnia (Online) |
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Phenotypic study of egg production curve in commercial broiler breeders using Compartmental functionequationmodelingpoultryABSTRACT The objective of this study was to analyze the effect of environmental factors on egg production curve traits in broiler breeders. The weekly egg production records of birds collected from four different flocks were used to estimate the egg production curve parameters using the Compartmental function (y = A(1 − exp−b(t − d))exp−ct). The coefficient of determination (R2) obtained by the model was 0.98. Least squares analysis of variance indicated that the environmental factors such as hatchability and flock had significant effects on egg production curve traits. The highest correlation was observed between the weekly potential maximum yield and yield at the beginning of laying, whereas the lowest correlation was found between the weekly potential maximum production and production after peak yield. Associated factors with the increasing slope of egg production curves had a negative correlation with the decrease after peak. The correlation analysis showed that peak production had a negative and significant relationship with production towards peak and time to reach peak production, while there was a positive and significant correlation with the slope decrease after peak yield. The Compartmental function can be used as an alternative model to predict egg production traits in broiler breeders.Sociedade Brasileira de Zootecnia2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100517Revista Brasileira de Zootecnia v.47 2018reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.1590/rbz4720170225info:eu-repo/semantics/openAccessSafari-Aliqiarloo,AbbasZare,MasoomehFaghih-Mohammadi,FarhangSeidavi,AlirezaLaudadio,VitoSelvaggi,MariaTufarelli,Vincenzoeng2018-06-26T00:00:00Zoai:scielo:S1516-35982018000100517Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2018-06-26T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false |
dc.title.none.fl_str_mv |
Phenotypic study of egg production curve in commercial broiler breeders using Compartmental function |
title |
Phenotypic study of egg production curve in commercial broiler breeders using Compartmental function |
spellingShingle |
Phenotypic study of egg production curve in commercial broiler breeders using Compartmental function Safari-Aliqiarloo,Abbas equation modeling poultry |
title_short |
Phenotypic study of egg production curve in commercial broiler breeders using Compartmental function |
title_full |
Phenotypic study of egg production curve in commercial broiler breeders using Compartmental function |
title_fullStr |
Phenotypic study of egg production curve in commercial broiler breeders using Compartmental function |
title_full_unstemmed |
Phenotypic study of egg production curve in commercial broiler breeders using Compartmental function |
title_sort |
Phenotypic study of egg production curve in commercial broiler breeders using Compartmental function |
author |
Safari-Aliqiarloo,Abbas |
author_facet |
Safari-Aliqiarloo,Abbas Zare,Masoomeh Faghih-Mohammadi,Farhang Seidavi,Alireza Laudadio,Vito Selvaggi,Maria Tufarelli,Vincenzo |
author_role |
author |
author2 |
Zare,Masoomeh Faghih-Mohammadi,Farhang Seidavi,Alireza Laudadio,Vito Selvaggi,Maria Tufarelli,Vincenzo |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Safari-Aliqiarloo,Abbas Zare,Masoomeh Faghih-Mohammadi,Farhang Seidavi,Alireza Laudadio,Vito Selvaggi,Maria Tufarelli,Vincenzo |
dc.subject.por.fl_str_mv |
equation modeling poultry |
topic |
equation modeling poultry |
description |
ABSTRACT The objective of this study was to analyze the effect of environmental factors on egg production curve traits in broiler breeders. The weekly egg production records of birds collected from four different flocks were used to estimate the egg production curve parameters using the Compartmental function (y = A(1 − exp−b(t − d))exp−ct). The coefficient of determination (R2) obtained by the model was 0.98. Least squares analysis of variance indicated that the environmental factors such as hatchability and flock had significant effects on egg production curve traits. The highest correlation was observed between the weekly potential maximum yield and yield at the beginning of laying, whereas the lowest correlation was found between the weekly potential maximum production and production after peak yield. Associated factors with the increasing slope of egg production curves had a negative correlation with the decrease after peak. The correlation analysis showed that peak production had a negative and significant relationship with production towards peak and time to reach peak production, while there was a positive and significant correlation with the slope decrease after peak yield. The Compartmental function can be used as an alternative model to predict egg production traits in broiler breeders. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-01 |
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=S1516-35982018000100517 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100517 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/rbz4720170225 |
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.47 2018 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_ |
1750318152788475904 |