Carcass Disposal On-Site Burial. ●Excavated trench or pit – Decomposition – Heat ●Length of time required varies – Species and size – Total volume – Soil.

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Presentation transcript:

Carcass Disposal On-Site Burial

●Excavated trench or pit – Decomposition – Heat ●Length of time required varies – Species and size – Total volume – Soil characteristics ●Settlement of the burial site – Additional backfill Just In Time Training Carcass Disposal: On Site Burial

Burial Types ●Trench burial – Daily mortalities – Trapezoid or vertical pits – Inexpensive – Convenient ●Mass burial – Large numbers of animal mortalities – Trapezoid pits with liners – More expensive and time consuming Just In Time Training Carcass Disposal: On Site Burial

Site Selection ●Soil properties – Texture and permeability ●Construction of the site – Slope of land – Depth of water table and bedrock ●Location of the site – Proximity to water sources or public areas – Accessibility ●Projected future use of the site Just In Time Training Carcass Disposal: On Site Burial

Construction and Design ●Site size/area – Depends on species, age/size, quantity ●Trapezoid shape pits – 42 cubic feet per:  1 adult bovine OR  5 pigs/sheep OR  40 chickens ●Liners to minimize seepage ●Caution during excavation Just In Time Training Carcass Disposal: On Site Burial

Construction and Design ●Trench size – 4-8 feet deep – 6 feet wide – Two large carcasses side by side ●May include liners – Clay may be used as a base layer ●Vent large carcasses ●Settlement during decomposition – May need additional backfill Just In Time Training Carcass Disposal: On Site Burial

Environmental Impacts ●Air quality – Odor ●Water quality – Leachate ●Gases – Methane, carbon dioxide, hydrogen sulfide ●Scavengers Just In Time Training Carcass Disposal: On Site Burial

Comparison With Other Disposal Methods ●Advantages – Quick, easy, inexpensive – Equipment generally readily – On-site; limited transportation ● Disadvantages – Large areas of land – Difficult in wet and cold weather conditions – Environmental impacts – Public opposition Just In Time Training Carcass Disposal: On Site Burial

Regulations and Monitoring ●Consult State regulations – Sites highly regulated – Depth, width, length, max size ●Environmental impact – Groundwater monitoring – Surface water sources – Air quality/odor ●Record site GPS location Just In Time Training Carcass Disposal: On Site Burial

Biosecurity ●Biosecurity – Personal protective equipment (PPE) – Movement control – Cleaning and disinfection ●Site security – Unauthorized persons – Log book – Warning or restriction signs – Site security personnel Just In Time Training Carcass Disposal: On Site Burial

Personnel Safety ●Safety Issues – Physical demands  Long hours  Response activities – Psychological impact ●Weather conditions Just In Time Training Carcass Disposal: On Site Burial

Resources for Carcass Disposal ●USDA Foreign Animal Disease Preparedness (FAD PReP) Guidelines: Disposal – ●Carcass Disposal: A Comprehensive Review. USDA and Kansas State University – Just In Time Training Carcass Disposal: On Site Burial

Acknowledgments Development of this presentation was by the Center for Food Security and Public Health at Iowa State University through funding from the Multi-State Partnership for Security in Agriculture Authors: Melissa Lang BS; Glenda Dvorak, DVM, MPH, DACVPM