WCFS - Western Center for Food Safety


University of California, Davis

Rob Atwill was one of eight invited speakers at the recent ISGP conference held in partnership with the University of Nebraska. This conference focused on national and global policy issues surrounding the role of water accessibility and quality on food safety and security.

Food Safety

Food Safety & Animal Manure: On-line Resources

Selected Recommendations Listed Below (from Various Web Resources):

  • Animal manure can contain bacteria such as Salmonella, Campylobacter and E. coli 0157:H7, as well as parasites like roundworms and tapeworms.
  • Persons most likely to be seriously harmed by manure pathogens include pregnant women, the elderly, infants and children and the immune-compromised.
  • Animal manure can be used as an effective fertilizer and soil amendment but it should not be allowed to contaminate foods which are consumed uncooked, such as fresh fruits and vegetables.
  • Store manure away from areas where fresh produce is grown and handled. Use distance or physical barriers to prevent runoff or wind drift of manure. Prevent cross-contamination by tools or farm equipment.
  • When growing fresh fruits and vegetables, adequately composting animal manure is the most effective practice.
  • In addition to composting animal manures other manure management practices can be used including field-applying manure shortly after harvesting and incorporating the manure into the soil as soon as possible.

Academic Websites

University of California
UC Good Agricultural Practices
(a variety of brochures, slides presentations and fact sheets)

University of California
Food safety in your home vegetable garden

University of California
Key Points of Control and Management for Microbial Food Safety: Edible Landscape Plants and Home Garden Produce

University of California
UC Good Agricultural Practices Microbial Safety is Your Responsibility

University of Georgia
Best Management Practices of Poultry Litter in Pecan Orchards

Georgetown University (Produce Safety Project)
Composting Criteria for Aimnal Manure

University of Maine
Guidelines for Using Manure on Vegetable Gardens Bulletin #2510

University of Minnesota
Using Manure and Compost as Nutrient Sources for Vegetable Crops

Iowa State University
On-farm Food Safety: Guide to Good Agricultural Practices (GAPs)

University of Florida
Food Safety on the Farm: Good Agricultural Practices and Good Handling Practices—Manure and Municipal Bio-solids

University of Hawaii
Composted Swine Manure for Vegetable Crop Application

University of Nevada
Pig Manure: Is it safe for the garden?

Ecological Agriculture Projects, McGill University, Canada
The Contamination of Organic Produce by Human Pathogens in Animal Manures

University of Wisconsin
Using Dog & Cat Manure On Home Gardens

Pennsylvania State University
Topics in Food Safety: What you should know about sprouts

Industry Websites

Canadian Organic Growers

Reducing Risks from E.coli 0157 on the Organic Farm

Government Websites

Food and Drug Administration
Guidance for Industry Guide to Minimize Microbial Food Safety Hazards for Fresh Fruits and Vegetables (1998)

Food Safety Modernization Act (FSMA)
Food Safety Modernization Act (FSMA)

FSMA Final Rules:

National Organics Program
Code of Federal Regulations for NOP Standards (see section 205.203 for manure practices)

The National Sustainable Agriculture Information Service
Manures for Organic Crop Production

Florida Department of Agriculture and Consumer Services
Tomato Best Practices Manual

Miscellaneous Websites (newspapers, blogs, etc,)

Nevada Appeal
Is animal manure safe for gardens?

Westport News
Keep food safety in mind when planning vegetable garden

Pennsylvania Master Gardeners Blog
Using Manure in the Garden