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      Avaliação de índices de conforto térmico de instalações para poedeiras no nordeste do Brasil Translated title: Evaluation of thermal comfort indexes for laying-hen houses in the northeast of Brazil

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          Abstract

          Neste trabalho foram analisados os índices de conforto térmico de poedeiras na fase de cria e recria, em galpões cobertos com diferentes tipos de materiais de cobertura, instalados no Nordeste do Brasil. Todos os galpões foram avaliados através do índice de temperatura do globo negro e umidade (ITGU), da carga térmica de radiação (CTR) e da umidade relativa do ar (UR). A análise das médias mostrou que o ambiente construído proporcionou índices ambientais desconfortáveis tanto na fase de cria, onde os índices ficaram abaixo da zona de conforto, como na fase final, quando os índices ficaram acima da zona de conforto. Nos horários mais quentes do dia o galpão com cobertura de telhas cerâmicas apresentou melhor resultado na CTR, em comparação com o galpão com cobertura de telha de cimento amianto, proporcionando melhor conforto térmico para poedeiras na fase de recria.

          Translated abstract

          In this study the thermal comfort indexes were analyzed in the growth phase of laying hens housed in installation with different types of roofing materials in the Northeast of Brazil. The laying hen-houses were assessed through black globe temperature and humidity index (WBGT), radiating thermal load (RTL) and the relative humidity. The mean analysis had showed that the laying-hen houses provided uncomfortable environmental indexes in all growth phases, where the thermal comfort indexes were below the thermal comfort zone during the early begining of chicken growing as well as in final phase when the indices were above the zone. During the hottest hours of the day, the laying-hen houses under ceramic roof tiles showed results in RTL better than the laying-hen houses using asbestos roofing tiles, providing best thermal comfort for laying hens in the growth phase.

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            Estimativa da macroporosidade em função de algumas características de solo de várzea

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              Maior produção com melhor ambiente para aves, suínos e bovinos

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbeaa
                Revista Brasileira de Engenharia Agrícola e Ambiental
                Rev. bras. eng. agríc. ambient.
                Departamento de Engenharia Agrícola - UFCG (Campina Grande )
                1807-1929
                October 2007
                : 11
                : 5
                : 527-531
                Affiliations
                [1 ] Universidade Federal de Campina Grande Brazil
                [2 ] Universidade Federal de Campina Grande Brazil
                [3 ] Universidade Federal da Paraíba Brazil
                [4 ] Universidade Federal da Paraíba Brazil
                Article
                S1415-43662007000500013
                10.1590/S1415-43662007000500013
                f96984e0-d4c6-49ea-9717-621e1930ca07

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1415-4366&lng=en
                Categories
                AGRICULTURAL ENGINEERING
                ENVIRONMENTAL SCIENCES

                Agricultural engineering,General environmental science
                eggs quality,layers,environment,qualidade dos ovos,postura,ambiência

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