Air filtration for PRRS Control Bryan Myers DVM Pipestone Veterinary Clinic of Iowa
PRRS• First diagnosed in late 1980’s• Numerous interventions have been tried to control this disease, but…………• 25 years l...
Air FiltrationWhat is involved in air filtration?How do I decide if I should filter my farm?What determines success?
Air Filtration – Filtering all incoming air
Air Filtration – Control Backdrafting
Air Filtration – Protocol ChangesEntrywayWeaned pig loadoutCull sow loadoutMortality removalEntry of supplies Getting thin...
Air Filtration - CostInitial Cost Dependent upon: Type of Facility Number of barns, Size of rooms, Gilt...
Decision to Filter a FarmDetermine Risk Location Pig Density Frequency of BreaksOther Severity of Brea...
Determining Risk – Location/Pig Density
Determining Risk – Pig Density21,000 pigs to impact farm in a 5 134,000 pigs to impact farms in amile radius ...
2800 sow farm
16,000 pig spaces within 2 miles
PRRS Break Frequency and SeverityFarm A Farm B• PRRS Breaks • PRRS Breaks – December 20...
Decision to Filter a FarmPigflow All in - All out sites? Multiple growing pigs on single site? Commingled p...
What determines success?Never breaking with PRRS again?1 year without PRRS?3 years without PRRS?5 years without PRRS?
Results continued Before and after filtration 24 23 ...
Questions? Bryan Myers DVMPipestone Veterinary Clinic of Iowa bmyers@pipevet.com
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Dr. Bryan Myers - Biosecurity of PRRS - pros and cons of air filtration

Biosecurity of PRRS - pros and cons of air filtration - Bryan Myers, D.V.M., Pipestone Clinic, from the 2012 World Pork Expo, June 6-8, Des Moines, Iowa, USA.
Published on: Mar 4, 2016
Published in: Business      Technology      
Source: www.slideshare.net


Transcripts - Dr. Bryan Myers - Biosecurity of PRRS - pros and cons of air filtration

  • 1. Air filtration for PRRS Control Bryan Myers DVM Pipestone Veterinary Clinic of Iowa
  • 2. PRRS• First diagnosed in late 1980’s• Numerous interventions have been tried to control this disease, but…………• 25 years later it is still estimated to be costing the swine industry over 600 million dollars per year.• Do we need to start thinking out of the box? Air Filtration??
  • 3. Air FiltrationWhat is involved in air filtration?How do I decide if I should filter my farm?What determines success?
  • 4. Air Filtration – Filtering all incoming air
  • 5. Air Filtration – Control Backdrafting
  • 6. Air Filtration – Protocol ChangesEntrywayWeaned pig loadoutCull sow loadoutMortality removalEntry of supplies Getting things in and out of the space shuttle while in space.
  • 7. Air Filtration - CostInitial Cost Dependent upon: Type of Facility Number of barns, Size of rooms, Gilt Development Age of Facility New facility (2-5 years) vs. Older facility (5-15 years) Current Ventilation Etc…. Attic Ventilation vs. Cool cell etc… $250.00 - $300.00 per sowRoutine Maintenance Cost Filter replacement, backdraft replacement, labor $1.00 per weaned pig
  • 8. Decision to Filter a FarmDetermine Risk Location Pig Density Frequency of BreaksOther Severity of Breaks PigflowEconomic Impact Cost of PRRS breaks Cost of Filtration
  • 9. Determining Risk – Location/Pig Density
  • 10. Determining Risk – Pig Density21,000 pigs to impact farm in a 5 134,000 pigs to impact farms in amile radius 5 mile radius
  • 11. 2800 sow farm
  • 12. 16,000 pig spaces within 2 miles
  • 13. PRRS Break Frequency and SeverityFarm A Farm B• PRRS Breaks • PRRS Breaks – December 2008 – November 2007 – December 2009 – January 2010 – January 2011• Frequency • Frequency – 12-13 months – 26 months• Estimated cost f - f • Estimated cost f - f – 1.8 million dollars – 450 thousand dollars Filter Yes or No? Filter Yes or No?
  • 14. Decision to Filter a FarmPigflow All in - All out sites? Multiple growing pigs on single site? Commingled pigflow?Execution Older buildings? Multiple buildings? Commitment to protocols?
  • 15. What determines success?Never breaking with PRRS again?1 year without PRRS?3 years without PRRS?5 years without PRRS?
  • 16. Results continued Before and after filtration 24 23 22 21 20 19 18 17 16 15 14Breeding herds 13 12 Pre-filtration 11 Postfiltration 10 New PRRSV infection 9 8 7 6 5 4 3 2 1 -40 -30 -20 -10 0 10 20 30 40 Time pre and post air filtration (months)
  • 17. Questions? Bryan Myers DVMPipestone Veterinary Clinic of Iowa bmyers@pipevet.com

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