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Journal of Environmental Quality 31:2120-2123 (2002)
© 2002 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America

SHORT COMMUNICATIONS

Evaluation of Commercial Odor Control Agents for Suppressing Escherichia coli in Swine Manure Slurry

Della Johnstona, Ralph Chapmana, Daniel Masséb and Edward Topp*,a

a Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, ON, Canada N5V 4T3
b Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, P.O. Box 90, 2000 Route 108 East, Lennoxville, QC, Canada J1M 1Z3

* Corresponding author (toppe{at}agr.gc.ca)

Received for publication November 14, 2001. Ten commercially available manure odor control agents were evaluated in bench-scale laboratory microcosms for their ability to inhibit or kill Escherichia coli, a commonly used indicator of fecal pollution and a potential pathogen. At manufacturer recommended rates, none of the agents reduced viable populations of E. coli in pure cultures or in swine manure slurry. However, at rates 10-fold higher than those recommended by the manufacturer, EnviroPur rapidly reduced viable populations of E. coli. Accelerated death of E. coli was observed at temperatures as low as 4°C. Chemical analysis of EnviroPur indicated that it contains alkylphenol polyethoxylates, common industrial surfactants. These results suggest that at manufacturer-recommended rates, the odor-controlling agents would not be effective at suppressing E. coli in stored swine manure slurry.

Abbreviations: TSB, trypticase soy broth






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The SCI Journals Agronomy Journal Crop Science
Vadose Zone Journal Journal of Plant Registrations
Journal of Natural Resources
and Life Sciences Education		 Soil Science Society of America Journal
Copyright © 2002 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.