Consulta: subjectFacets:"Air renovation"
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Influence of different systems of minimum ventilation on air quality in broiler houses
Provedor de dados: Engenharia Agrícola
Autores: Menegali,Irene; Tinôco,Ilda F. F.; Zolnier,Sérgio; Carvalho,Cinara da C. S.; Guimarães,Maria C. de C.
To maintain a competitive development of the Brazilian aviculture, some measures must be taken to enable the identification and reduction of risks to the health of birds, as well as for the physical environment. Therefore, the aim of this study was to evaluate the effectiveness of three different systems of minimum ventilation (positive pressure - SVMP, negative pressure - SVMN and natural ventilation - SVMNat) in the air quality during the first 21 days of life of broiler chicks, during winter. Three points were selected along the length to verify ammonia, carbon monoxide and oxygen concentrations at 3a.m., 9a.m., 3p.m. and 9p.m., by the respiration level of birds and workers. The averages of pollutant gases did not exceed the tolerance levels for the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aviculture; Broiler chicks; Gas concentration; Air renovation.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000600003