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A NOVEL APPROACH TO FOOT DIPPING. Robert L. Owen and John Lawlor. The Problem. Biosecurity is a year round obligation In some parts of the country, foot dipping is impossible at certain times of the year. Universally, foot pans are inadequately maintained. The Solution.

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a novel approach to foot dipping

A NOVEL APPROACH TO FOOT DIPPING

Robert L. Owen and John Lawlor

the problem
The Problem
  • Biosecurity is a year round obligation
  • In some parts of the country, foot dipping is impossible at certain times of the year.
  • Universally, foot pans are inadequately maintained.
the solution
The Solution
  • Ignore that the problem exists
  • Discontinue use of foot pans
  • Utilize pump up sprayers filled with disinfectant
  • How about a dry foot bath?
question 1
Question 1

Are foot pan solutions effective at reducing the numbers of bacteria on shoes of hatchery workers?

question 2
Question 2

How long does a foot pan solution stay clean in a hatchery environment?

materials and methods
Materials and Methods
  • A total of 5 dry products were tested
  • Early testing was for efficacy of Salmonella control only
    • Based on these results 2 of the 5 original products were dropped due to lack of efficacy or cost
  • Remaining products were tested versus currently used liquid products
testing procedure
Testing Procedure
  • Swab was collected from the sole of the technician’s shoe before stepping into test pan
  • Stood in test pan for 10 second contact time
  • Shoe was again swabbed after stepping out of test pan
  • Samples were directly plated on TSA and incubated 37oC for 18 to 24 hours
  • Colonies enumerated by direct count
    • >400 classified as TNTC
  • Repeated daily until efficacy was lost
materials and methods trial 2
Materials and Methods: Trial 2
  • Actually done in the hatchery
  • Employee’s shoe was swabbed before stepping into test pan
    • Between Chick Room and Break Room
  • Real World 5 to 10 second contact time
conclusions
Conclusions
  • Duration of effectiveness for solution in foot pans is very short under field conditions
  • Dry disinfectants are effective at reducing bacterial numbers on shoes
  • Duration of effectiveness for dry disinfectants is substantially longer than for solutions
practical applications
Practical Applications
  • Real goal is to reduce tracking of bacteria – especially Salmonella
  • Only part of an overall biosecurity program
acknowledgments
Acknowledgments
  • Tony Britt, Hatchery Manager, Pikeville, TN
  • Technical Support
    • Melissa Poulson
    • Amanda Harvey
    • Tara Stroope
    • Lena Shipley