Data/hora: 06/06/2024 13:47:38

Provedor de dados: | 89
País: | Brazil
Título: | Diagnosis and evaluation of fungi presence in the air of two different ventilation sytems for broiler houses
Autores: | Gigli,ACS; Baracho,MS; Nääs,IA; Silva,RA; Zago,R; Dall'Anese,FP.
Data: | 2005-12-01
Ano: | 2005
Palavras-chave: | Environment; Fungi; Poultry housing.
Resumo: | Intensive broiler production in tropical climates requires adequate air circulation to control heat stress. Excess of air speed may lead to dust production and reduction of air quality and, consequently, production parameters. Brazilian regulations prohibit the presence of pathogens that may deteriorate air quality, and the presence of fungi in the air inside the poultry houses is limited to 750CFU/m³. The aim of this study was to evaluate the presence of fungi in two distinct types of broiler houses. The research compared two types of air ventilation: conventional (G1) and positive tunnel ventilation (G2). The fungi were collected using a dust sampling pump, with the air flow calibrated to 1.5 L/min. The filter impregnated with dust was submitted to growth for two days using five Petri dishes. Microbiology analysis showed that there were 1,239 CFU and 2,011 CFU in G1 and G2, respectively. The different genera of fungi found and their percentages were: Penicillium 29.16%, Aspergillus 37.5% and Fusarium 29.16% in G1 and Penicillium 33.34%, Aspergillus 26.64%, Fusarium 23.34% and Neurospora 3.34% in G2.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000400002
Editor: | Fundação APINCO de Ciência e Tecnologia Avícolas
Relação: | 10.1590/S1516-635X2005000400002
Formato: | text/html
Fonte: | Brazilian Journal of Poultry Science  v.7 n.4 2005
Fonte: | info:eu-repo/semantics/openAccess