Phenotypic study of egg production curve in commercial broiler breeders using Compartmental function

Detalhes bibliográficos
Autor(a) principal: Safari-Aliqiarloo,Abbas
Data de Publicação: 2018
Outros Autores: Zare,Masoomeh, Faghih-Mohammadi,Farhang, Seidavi,Alireza, Laudadio,Vito, Selvaggi,Maria, Tufarelli,Vincenzo
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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spelling 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)
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