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

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Fig. 1. Effect of manure odor control agents on viable populations of E. coli in half-strength trypticase soy broth (TSB). Agents were added at concentrations that were 10 times those recommended by the manufacturer.
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Fig. 2. Effect of manure odor control agents on viable populations of E. coli inoculated into manure slurry incubated statically at 20°C. Agents were added at concentrations that were 10 times those recommended by the manufacturer. The detection limit for the enumeration was 103 cells/mL.
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Fig. 3. Effect of manure odor control agents on persistence of E. coli inoculated in swine slurry incubated at 4, 12, or 20°C. Agents were added at concentrations that were 10 times those recommended by the manufacturer.
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Copyright © 2002 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.