Spatial analysis of stress conditions inside broiler house under tunnel ventilation

Detalhes bibliográficos
Autor(a) principal: Miragliotta,Miwa Yamamoto
Data de Publicação: 2006
Outros Autores: Nääs,Irenilza de Alencar, Manzione,Rodrigo Lilla, Nascimento,Fernando Ferraz do
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000500002
Resumo: Broiler building typology associated with the local characteristics (climate, topography and surrounding vegetation) and handling systems (stocking density, curtains, equipment and nutrition) influence the inside environment. A spatial distribution analysis of these conditions may indicate stress zones in the house. The aim of this research was to apply spatial analysis of thermal, aerial and acoustic environmental conditions inside a tunnel ventilated broiler housing, with a stocking density of 18 birds m-2. This study was carried out in Rio Claro, SP, Brazil, in a 12 m × 115 m house divided into three equal sections (East, center and West), East-West oriented, and virtually divided on 132 cells, each one measuring 3.0 m × 3.5 m. At the geometric center of each cell the following variables were monitored: dry bulb temperature, relative humidity, air velocity, noise level and light intensity. Average broiler mortality was recorded in each of the three sections. Data collection was made systematically from West to East, opposite to the air flow produced by the tunnel ventilation system, during the warmest period of the day. Measurements took place during the sixth week of production. A geostatistics software tool was used to build spatial distribution maps of the recorded variables in order to infer intermediate stress conditions. It was concluded that the stress zones were located at both ends of the house and the highest mortality index was found at the West sector where the exhaust fans were placed.
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spelling Spatial analysis of stress conditions inside broiler house under tunnel ventilationbroiler productionenvironmentgeostatisticsheat stressspatial distributionBroiler building typology associated with the local characteristics (climate, topography and surrounding vegetation) and handling systems (stocking density, curtains, equipment and nutrition) influence the inside environment. A spatial distribution analysis of these conditions may indicate stress zones in the house. The aim of this research was to apply spatial analysis of thermal, aerial and acoustic environmental conditions inside a tunnel ventilated broiler housing, with a stocking density of 18 birds m-2. This study was carried out in Rio Claro, SP, Brazil, in a 12 m × 115 m house divided into three equal sections (East, center and West), East-West oriented, and virtually divided on 132 cells, each one measuring 3.0 m × 3.5 m. At the geometric center of each cell the following variables were monitored: dry bulb temperature, relative humidity, air velocity, noise level and light intensity. Average broiler mortality was recorded in each of the three sections. Data collection was made systematically from West to East, opposite to the air flow produced by the tunnel ventilation system, during the warmest period of the day. Measurements took place during the sixth week of production. A geostatistics software tool was used to build spatial distribution maps of the recorded variables in order to infer intermediate stress conditions. It was concluded that the stress zones were located at both ends of the house and the highest mortality index was found at the West sector where the exhaust fans were placed.Escola Superior de Agricultura "Luiz de Queiroz"2006-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000500002Scientia Agricola v.63 n.5 2006reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162006000500002info:eu-repo/semantics/openAccessMiragliotta,Miwa YamamotoNääs,Irenilza de AlencarManzione,Rodrigo LillaNascimento,Fernando Ferraz doeng2006-09-20T00:00:00Zoai:scielo:S0103-90162006000500002Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2006-09-20T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Spatial analysis of stress conditions inside broiler house under tunnel ventilation
title Spatial analysis of stress conditions inside broiler house under tunnel ventilation
spellingShingle Spatial analysis of stress conditions inside broiler house under tunnel ventilation
Miragliotta,Miwa Yamamoto
broiler production
environment
geostatistics
heat stress
spatial distribution
title_short Spatial analysis of stress conditions inside broiler house under tunnel ventilation
title_full Spatial analysis of stress conditions inside broiler house under tunnel ventilation
title_fullStr Spatial analysis of stress conditions inside broiler house under tunnel ventilation
title_full_unstemmed Spatial analysis of stress conditions inside broiler house under tunnel ventilation
title_sort Spatial analysis of stress conditions inside broiler house under tunnel ventilation
author Miragliotta,Miwa Yamamoto
author_facet Miragliotta,Miwa Yamamoto
Nääs,Irenilza de Alencar
Manzione,Rodrigo Lilla
Nascimento,Fernando Ferraz do
author_role author
author2 Nääs,Irenilza de Alencar
Manzione,Rodrigo Lilla
Nascimento,Fernando Ferraz do
author2_role author
author
author
dc.contributor.author.fl_str_mv Miragliotta,Miwa Yamamoto
Nääs,Irenilza de Alencar
Manzione,Rodrigo Lilla
Nascimento,Fernando Ferraz do
dc.subject.por.fl_str_mv broiler production
environment
geostatistics
heat stress
spatial distribution
topic broiler production
environment
geostatistics
heat stress
spatial distribution
description Broiler building typology associated with the local characteristics (climate, topography and surrounding vegetation) and handling systems (stocking density, curtains, equipment and nutrition) influence the inside environment. A spatial distribution analysis of these conditions may indicate stress zones in the house. The aim of this research was to apply spatial analysis of thermal, aerial and acoustic environmental conditions inside a tunnel ventilated broiler housing, with a stocking density of 18 birds m-2. This study was carried out in Rio Claro, SP, Brazil, in a 12 m × 115 m house divided into three equal sections (East, center and West), East-West oriented, and virtually divided on 132 cells, each one measuring 3.0 m × 3.5 m. At the geometric center of each cell the following variables were monitored: dry bulb temperature, relative humidity, air velocity, noise level and light intensity. Average broiler mortality was recorded in each of the three sections. Data collection was made systematically from West to East, opposite to the air flow produced by the tunnel ventilation system, during the warmest period of the day. Measurements took place during the sixth week of production. A geostatistics software tool was used to build spatial distribution maps of the recorded variables in order to infer intermediate stress conditions. It was concluded that the stress zones were located at both ends of the house and the highest mortality index was found at the West sector where the exhaust fans were placed.
publishDate 2006
dc.date.none.fl_str_mv 2006-10-01
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=S0103-90162006000500002
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000500002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-90162006000500002
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 Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.63 n.5 2006
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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