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dc.contributor.authorVitorasso, G. [UNESP]
dc.contributor.authorPereira, Danilo Florentino [UNESP]
dc.contributor.authorMagalhãdes, M. M D [UNESP]
dc.contributor.authorSalgado, D. D.
dc.contributor.authorMiyamoto, B. C B [UNESP]
dc.identifier.citationLivestock Environment VIII - Proceedings of the 8th International Symposium, p. 367-374.
dc.description.abstractThe aim of this paper is to verify the correlation between environmental indicators and behaviors expressed by laying hens kept in cages. The birds react to a severe environment through their behaviors, end the behaviors can be monitored to identify the birds' welfare conditions. The behaviors birds display ere the result of stress caused by the combination of environmental temperature, relative humidity, radiant heat, and air speed (environmental temperature being the most important). In order to check the influence of the environment, an experiment was carried out on a commercial poultry farm, located in the city of Bastos. The study was initiated in March 2007, during four non-consecutive weeks. The birds' behaviors were recorded using video, by cameras installed in the cages. The birds behaviors were identified and noted for the frequency of occurrence for each bird, and the average duration of each behavior (in seconds), using video samples of 15 minutes recorded from 1 PM to 4 PM. The environmental variables collected were: air temperature, concentration of ammonia, relative air humidity, velocity of the air, noise, roof temperature, and light intensity. 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 and prostrating. Principal Components Analysis was used to determine associations between the behavior variables and environmental variables described above. In this experiment, there were no significant correlations between behavioral variables and environmental variables.en
dc.relation.ispartofLivestock Environment VIII - Proceedings of the 8th International Symposium
dc.subjectAnimal behavior
dc.subjectAnimal welfare
dc.subjectAtmospheric humidity
dc.subjectPermanent magnets
dc.subjectPotable water
dc.subjectPrincipal component analysis
dc.subjectAir humidities
dc.subjectAir speed
dc.subjectAir temperatures
dc.subjectBehavior patterns
dc.subjectConcentration of
dc.subjectDrinking waters
dc.subjectEnvironmental indicators
dc.subjectEnvironmental temperatures
dc.subjectEnvironmental variables
dc.subjectLight intensities
dc.subjectPoultry farms
dc.subjectPrincipal components analysis
dc.subjectRadiant heats
dc.subjectRelative humidities
dc.titleInfluence of the environment on behavior patterns of laying hens kept in cagesen
dc.typeTrabalho apresentado em evento
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.description.affiliationBusiness Management College UNESP
dc.description.affiliationAgricultural Engineering UNICAMP
dc.description.affiliationUnespBusiness Management College UNESP
dc.rights.accessRightsAcesso aberto
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências e Engenharia, Tupãpt
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