Effects of the density, aviary type, breed, and age on the behaviors of laying hens kept in cages

Detalhes bibliográficos
Autor(a) principal: Pereira, Danilo Florentino [UNESP]
Data de Publicação: 2008
Outros Autores: Vitorasso, G. [UNESP], De Magalhaes, M. M. [UNESP], De Oliveira, S. C. [UNESP], Miyamoto, B. C B [UNESP]
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: https://elibrary.asabe.org/azdez.asp?AID=25556&T=2
http://hdl.handle.net/11449/70839
Resumo: An experiment was carried out in order to investigate the behaviors of laying hens due to the environmental factors of: density inside of the cage, aviary type, breed, and age. The experiment was configured as a factorial 4x2x2x2 study, with treatments being four different ages, two different breeds, two different cage densities, and two different aviaries. The birds' behaviors were recorded using video cameras installed in the cages, using samples of 15 minutes recorded from 12 PM to 4 PM. The observed behaviors, frequency and duration of behaviors (measured in seconds) were identified and noted related to each bird. The study was initiated in March 2007, during four non-consecutive weeks. The observed behaviors were: opening wings, stretching, threatening, ruffling feathers, drinking water, aggressive pecking, eating, running, lying down, stretching head out of the cage, preening, mounting, prostrating, and doing nothing (inactivity). Due to the non-normality of the data recorded, the Kruskal-Wallis statistical test of the MINITAB Statistical Software® was used to compare the medians of the variables. For breed factor, only the durations of the eating presented significant differences (p-value< 0.05). For cage density, there was a significant median difference (p-value< 0.05) for almost all behaviors observed. The average length of time of behaviors was higher for the lowest cage density. However, the frequency of behaviors was lmerfor the lowest cage density. The frequency of the behaviors to preen feathers, to lie down, to drink water and to stretch the head were higher in the aviary, where the groups of birds were smaller. The observed behaviors were particularly affected by experimental factors cage density, and aviary type, which directly affects the available space for each bird.
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spelling Effects of the density, aviary type, breed, and age on the behaviors of laying hens kept in cagesAnimal behaviorAnimal welfareGroup sizeAgriculturePermanent magnetsPotable waterStatistical testsAverage lengthsDrinking watersEnvironmental factorsExperimental factorsKruskalMINITABNon normalitiesP valuesStatistical softwaresBirdsAn experiment was carried out in order to investigate the behaviors of laying hens due to the environmental factors of: density inside of the cage, aviary type, breed, and age. The experiment was configured as a factorial 4x2x2x2 study, with treatments being four different ages, two different breeds, two different cage densities, and two different aviaries. The birds' behaviors were recorded using video cameras installed in the cages, using samples of 15 minutes recorded from 12 PM to 4 PM. The observed behaviors, frequency and duration of behaviors (measured in seconds) were identified and noted related to each bird. The study was initiated in March 2007, during four non-consecutive weeks. The observed behaviors were: opening wings, stretching, threatening, ruffling feathers, drinking water, aggressive pecking, eating, running, lying down, stretching head out of the cage, preening, mounting, prostrating, and doing nothing (inactivity). Due to the non-normality of the data recorded, the Kruskal-Wallis statistical test of the MINITAB Statistical Software® was used to compare the medians of the variables. For breed factor, only the durations of the eating presented significant differences (p-value< 0.05). For cage density, there was a significant median difference (p-value< 0.05) for almost all behaviors observed. The average length of time of behaviors was higher for the lowest cage density. However, the frequency of behaviors was lmerfor the lowest cage density. The frequency of the behaviors to preen feathers, to lie down, to drink water and to stretch the head were higher in the aviary, where the groups of birds were smaller. The observed behaviors were particularly affected by experimental factors cage density, and aviary type, which directly affects the available space for each bird.Business Management College UNESPBusiness Management College UNESPUniversidade Estadual Paulista (Unesp)Pereira, Danilo Florentino [UNESP]Vitorasso, G. [UNESP]De Magalhaes, M. M. [UNESP]De Oliveira, S. C. [UNESP]Miyamoto, B. C B [UNESP]2014-05-27T11:23:49Z2014-05-27T11:23:49Z2008-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject585-591https://elibrary.asabe.org/azdez.asp?AID=25556&T=2Livestock Environment VIII - Proceedings of the 8th International Symposium, p. 585-591.http://hdl.handle.net/11449/708392-s2.0-63149147192Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLivestock Environment VIII - Proceedings of the 8th International Symposiuminfo:eu-repo/semantics/openAccess2021-10-22T17:20:02Zoai:repositorio.unesp.br:11449/70839Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T17:20:02Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Effects of the density, aviary type, breed, and age on the behaviors of laying hens kept in cages
title Effects of the density, aviary type, breed, and age on the behaviors of laying hens kept in cages
spellingShingle Effects of the density, aviary type, breed, and age on the behaviors of laying hens kept in cages
Pereira, Danilo Florentino [UNESP]
Animal behavior
Animal welfare
Group size
Agriculture
Permanent magnets
Potable water
Statistical tests
Average lengths
Drinking waters
Environmental factors
Experimental factors
Kruskal
MINITAB
Non normalities
P values
Statistical softwares
Birds
title_short Effects of the density, aviary type, breed, and age on the behaviors of laying hens kept in cages
title_full Effects of the density, aviary type, breed, and age on the behaviors of laying hens kept in cages
title_fullStr Effects of the density, aviary type, breed, and age on the behaviors of laying hens kept in cages
title_full_unstemmed Effects of the density, aviary type, breed, and age on the behaviors of laying hens kept in cages
title_sort Effects of the density, aviary type, breed, and age on the behaviors of laying hens kept in cages
author Pereira, Danilo Florentino [UNESP]
author_facet Pereira, Danilo Florentino [UNESP]
Vitorasso, G. [UNESP]
De Magalhaes, M. M. [UNESP]
De Oliveira, S. C. [UNESP]
Miyamoto, B. C B [UNESP]
author_role author
author2 Vitorasso, G. [UNESP]
De Magalhaes, M. M. [UNESP]
De Oliveira, S. C. [UNESP]
Miyamoto, B. C B [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Pereira, Danilo Florentino [UNESP]
Vitorasso, G. [UNESP]
De Magalhaes, M. M. [UNESP]
De Oliveira, S. C. [UNESP]
Miyamoto, B. C B [UNESP]
dc.subject.por.fl_str_mv Animal behavior
Animal welfare
Group size
Agriculture
Permanent magnets
Potable water
Statistical tests
Average lengths
Drinking waters
Environmental factors
Experimental factors
Kruskal
MINITAB
Non normalities
P values
Statistical softwares
Birds
topic Animal behavior
Animal welfare
Group size
Agriculture
Permanent magnets
Potable water
Statistical tests
Average lengths
Drinking waters
Environmental factors
Experimental factors
Kruskal
MINITAB
Non normalities
P values
Statistical softwares
Birds
description An experiment was carried out in order to investigate the behaviors of laying hens due to the environmental factors of: density inside of the cage, aviary type, breed, and age. The experiment was configured as a factorial 4x2x2x2 study, with treatments being four different ages, two different breeds, two different cage densities, and two different aviaries. The birds' behaviors were recorded using video cameras installed in the cages, using samples of 15 minutes recorded from 12 PM to 4 PM. The observed behaviors, frequency and duration of behaviors (measured in seconds) were identified and noted related to each bird. The study was initiated in March 2007, during four non-consecutive weeks. The observed behaviors were: opening wings, stretching, threatening, ruffling feathers, drinking water, aggressive pecking, eating, running, lying down, stretching head out of the cage, preening, mounting, prostrating, and doing nothing (inactivity). Due to the non-normality of the data recorded, the Kruskal-Wallis statistical test of the MINITAB Statistical Software® was used to compare the medians of the variables. For breed factor, only the durations of the eating presented significant differences (p-value< 0.05). For cage density, there was a significant median difference (p-value< 0.05) for almost all behaviors observed. The average length of time of behaviors was higher for the lowest cage density. However, the frequency of behaviors was lmerfor the lowest cage density. The frequency of the behaviors to preen feathers, to lie down, to drink water and to stretch the head were higher in the aviary, where the groups of birds were smaller. The observed behaviors were particularly affected by experimental factors cage density, and aviary type, which directly affects the available space for each bird.
publishDate 2008
dc.date.none.fl_str_mv 2008-12-01
2014-05-27T11:23:49Z
2014-05-27T11:23:49Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://elibrary.asabe.org/azdez.asp?AID=25556&T=2
Livestock Environment VIII - Proceedings of the 8th International Symposium, p. 585-591.
http://hdl.handle.net/11449/70839
2-s2.0-63149147192
url https://elibrary.asabe.org/azdez.asp?AID=25556&T=2
http://hdl.handle.net/11449/70839
identifier_str_mv Livestock Environment VIII - Proceedings of the 8th International Symposium, p. 585-591.
2-s2.0-63149147192
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Livestock Environment VIII - Proceedings of the 8th International Symposium
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 585-591
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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