Defra - Department for Environment, Food and Rural Affairs.

Science Search

Science and Research Projects

Return to Science Search homepage   Return to Project List

`Protozoan, Bacterial & Viral Pathogens, Farm Animal Wastes, and Water` - OC9012

There is a need to identify farming practices affecting the dissemination of protozoal, bacterial and viral pathogens through the environment and to assess the associated risks of environmental contamination, particularly to water used for drinking and recreational purposes. This study will be composed of the following objectives: 1. Determination of the quantity and rates at which Cryptosporidium, Giardia, Salmonella and Rotavirus are released into the environment during the animal production cycle; 2. Determination of the degree of partitioning between solid and liquid phases of animal wastes; 3. Identification of predisposing factors affecting the dissemination of pathogens through the environment; 4. Evaluation, with particular reference to protozoal oocysts and cysts, of pathogen survival in animal wastes during storage and following release into terrestrial or aquatic environments; 5. Assessment of the risk of water contamination associated with various storage, handling and disposal practices; 6. Assessment of the efficacy of mesophilic and thermophilic aerobic treatment for the removal of these pathogens; and 7. Production of a computer-based program to assess the risk of contaminating surface waters, associated with various farming activities and management strategies. Objectives will be achieved by bringing together the expertise and resources of various laboratories and research institutes acknowledged as centres of excellence within their specific disciplines. Results of the study will provide practical advice to farmers on ways of managing wastes so as to protect the quality and safety of the environment.
Time-Scale and Cost
From: 1992

To: 1995

Cost: £280,597
Contractor / Funded Organisations
University - Scottish Agricultural College
Fields of Study
Environmental Protection - Agriculture