efficient products in the disinfection that do not cause damages to the environment are a challenge for the organic poultry keeping. the antibacterial activity of four disinfectants was evaluated to per acetic acid, quaternary ammonium, sodium hypochlorite at 1% and 0,1% and the composed of organics acids (citric, lactic and ascorbic) against standard samples of escherichia coli, salmonella enteritidis and staphylococcus aureus in the presence and absence of organic matter, at two different temperatures and with 20 minutes of contact. organic acids were shown less effective in the presence of organic matter. however, the per acetic acid in the absence of this revealed most efficient against s. enteritidis and equally effective in the presence of organic matter, against s. aureus and e. coli showing a valid option for disinfection in the organic poultry keeping since preceded of careful cleanness.
