GIGLI, A. C. S.; SALGADO, D. D; BARACHO, M. S.; NÄÄS, I. A.; SILVA, R. A.; ZAGO, R.
Resumen:
Climate and presence of aggressive agents in agricultural buildings depends on variety
of factors, such as building features, confined animal species and climate variables. In determined
conditions, however, its possible microorganism s development, which the most frequent are fungi,
affecting, in this way, the air quality; one of the basic requirements to warrantee good productivity.
The aim of this work, carried out in Rio Claro, São Paulo state, Brazil, was evaluate the colonies
forming units per m³ (CFU/m³) distribution standard in different poultry house s typologies, one
counting with conventional ventilation system (G1), and another one equipped with tunnel ventilation
system (G2), as well the external region between those buildings (EXT), and correlate those data with
environmental variables (dry bulb temperature DBT, relative humidity RH and air velocity AV).
In this way, were, during three production flocks, weekly, collected environmental data and air
samples, using a personal air sampling pump. In general, the statistical analysis showed that, isolated,
environmental variables were not significant, at 0,05 significance level, to CFU/m³ incidence, with
exception to DBT in G1 and RH in EXT (p-value≤0,05), both of these correlations presented a
negative association.
