Biosecurity on the farm

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Biosecurity on the farm

• Clarence Siroky, DVM
• Wisconsin State Veterinarian

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Overview

• Whats biosecurity?
• Why biosecurity?
• Why now?
• Whats the least you can do?
• How-tos for dairy operations

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Whats biosecurity?
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This isnt biosecurity . .
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But neither is this . . .
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Or this . . .
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Biosecurity is

• Management practices that reduce the chance of
  bringing infectious diseases onto your farm, and
  that slow the spread of infectious diseases on
  your farm

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Why biosecurity?
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To protect animal health
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To protect your investment
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To protectour food supply and human health
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Why now?
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Why now?

• Weve had some wakeup calls

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Foot-and-mouth disease
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BSE (mad cow)
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Bovine TB
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And its a shrinking world
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. . .that spreads disease worldwide
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Whats the least you can do?
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Control access

• Parking
• Keep vehicles away from animal production areas
• Keep manure out of parking areas

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Control access

• Post signs

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Control access

• Entrance to barns
• Meet visitors away from animals
• Provide a non-entry contact like window, phone,
  or buzzer
• Lock barns if necessary
• Have sale animals and dead animals picked up away
  from barns
• Record visitors
• Keep food away from animals

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Protective clothing and boots

• Cleaned, disinfected rubber boots
• Clean coveralls
• Keep extras for visitors
• Change before you return to farm from fairs,
  shows, sale barns, etc.

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Disinfection

• Clean boots first
• Use a brush -- dont just dip
• Keep disinfectant at all entry points
• Use
• Commercial products
• 1 oz. bleach to 1 gallon water (refresh often)
• 50/50 white vinegar/water

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How-tos for dairy farms
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Keep a closed herd

• A herd is not closed if
• You buy or board animals
• Cattle return to the herd after being off the
  farm
• Your pastures share a fenceline with a neighbors
  pastures
• Your cattle are transported by someone else or in
  someone elses vehicle

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Reduce risk when buying cattle

• Know the source of the cattle, including
  transport to your farm
• Introduce new cattle properly

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Source of cattle

• Know the health status of source herd
• Get specificvaccination history
• Avoid animalsmixed with othercattle before the
  sale
• Buy open heifers
• Transport in your own vehicle, cleaned before and
  after shipping

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Introducing new animals

• 30-day quarantine in well-segregated area with no
  shared feeding, watering or grooming equipment
• Medicated foot bath
• Proper milking hygiene
• Daily temperature check
• Vaccinations during quarantine

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Pickup and delivery

• Locate bulk feed bins away from production
  buildings
• Have renderers pick up away from production areas
• Use power washer and disinfectant to clean
  trucks, trailers and other machinery

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In summary

• Biosecurity relies on
• Controlled access
• Protective wear
• Disinfection
• Closed herds
• Wise buying
• Isolation on introduction

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But remember. . .

• These are general rules
• You need to work with your veterinarian to
  develop other biosecurity practices to fit your
  operation

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Or heres biosecurity from the cows point of
view
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