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Protection of Food and Water Supplies from Pathogen Contamination

Investigators
Ibekwe, Abasiofiok Mark; Bradford, Scott
Institutions
USDA - Agricultural Research Service
Start date
2010
End date
2015
Objective

Determine the relationships between manure management and populations of human pathogens and antibiotic resistant bacteria (ARB) that result in new recommendations for best management practices (BMPs);

Develop effective methods and practices to protect crops from pathogen contamination;

Develop management practices to minimize the transport of pathogens (e.g. E. coli O157:H7, Cryptosporidium, enterococcus, Salmonella) from concentrated dairy and beef cattle operations to water resources.

More information
Approach: Conduct laboratory and field experiments to examine the important biological, chemical, and physical processes affecting the prevalence and distribution of pathogenic and antibiotic resistant bacteria on representative farms in the Santa Ana River watershed. Studies will be conducted at various scales to determine the persistence (survival) of E. coli O157:H7 in its sources on these farms and assess potential factors influencing pathogen survival in the root zone and contamination of leafy greens. Laboratory scale study will be conducted to quantify critical processes influencing the dissemination of pathogens in the watershed by runoff, streams and rivers. Factors influencing the treatment of contaminated surface waters by sand filtration will also be investigated to more fully assess its capabilities and potential weaknesses. Data obtained from these studies will be used to develop best management practices (BMPs) and low cost treatment technologies for immobilization and inactivation of pathogens from concentrated animal feeding operations (CAFOs) to water and food resources. Replaces 5310-32000-002-00D (1/11).
Funding Source
Agricultural Research Service
Project source
View this project
Project number
5310-32000-003-00
Accession number
420973
Categories
Escherichia coli
Prevention and Control