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Developing a Scoresheet to Evaluate Biosecurity

  

Nov 20, 2015

    

 

INTRODUCTION

Based on the epidemiologic information emanating from research on the recent outbreak of HPAI in the upper Midwest, and following site visits to clients, the attached draft biosecurity scoresheets are provided for the guidance of Subscribers to EGG-CITE.

It is necessary to evaluate biosecurity according to a hierarchy and accordingly separate pages are provided for conceptual biosecurity, structural biosecurity and operational biosecurity.  A fourth page deals with complexes receiving feed from a mill not located on the complex.

The concept of the biosecurity evaluation relates to assessing the risk of introduction of disease into an operation and the subsequent dissemination of disease among complexes. A maximum score would be assigned if there was no appropriate conceptual approach, structural installations or operational procedure.

The auditor would assign a facility score less than the maximum risk score based on experience and comparisons among U.S. egg-production operations.  For example any specific complex in Darke County, OH. or Sioux County, IA. would probably be assigned a score of 200 for “population density” since these areas have a high concentration of hens and turkeys operated by different companies located in close proximity.  In contrast an isolated complex in Arizona or Utah would be assigned a score of 0 to 10 on population density since it is the only facility with commercial poultry within 250 miles.  It is therefore obvious that facilities which operate with a high level of conceptual, structural and operational biosecurity will have low risk scores compared to what may be regarded as the maximum value of risk given the provisional scoring.

  

 

PROPOSED

BIOSECURITY SCORESHEETS

Maximum                                          

CONCEPTUAL BIOSECURITY    Risk Score     Facility Score             Comments

High population density in area of operation

200

 

 

Close proximity to other farms

50

 

 

Close proximity to major roads

50

 

 

Close proximity to water bodies/waterfowl habitat

50

 

 

 

 

 

 

Self contained operation:

 

 

 

     feed delivered from off-site mill

50

 

 

     off-line packing of nest-run

50

 

 

Pullets on same site as hens

100

 

 

 

 

 

 

Size of facility (hens)

 

 

 

          20,000 to 100,000

30

 

 

          +500,000

50

 

 

          +1,000,000

100

 

 

Personnel resident on site
     without separation from farm

30

 

 

 

 

 

 

Biological connection
     with other complexes

100

 

 

 

 

 

 

General

 

 

 

 

 Lack of evident culture of biosecurity

100

 

 

 Ill-defined organizational structure with designated responsibility for biosecurity and implementation of Biosecurity Manual 

100

 

 

           

Subtotal                                              __________    _____________         

 

 

 

                                                            Maximum                                          

STRUCTURAL BIOSECURITY        Risk Score Facility Score             Comments

No perimeter fencing or gates

50

 

 

No vehicle decontamination

70

 

 

Personnel decontamination module

100

 

 

Non-impervious roads, parking

        100

 

 

Defective drainage

30

 

 

Water supply from well – non-chlorinated

50

 

 

Access to houses by rodents/birds

50

 

 

Manure handling & storage

40

 

 

 

 

 

 

Dead bird disposal:

 

 

 

     Ineffective on-farm

50

 

 

     Using contract pickup

100

 

 

 

 

 

 

Self-sufficiency:

 

 

 

     Shared vehicles

50

 

 

     Shared equipment

100

 

 

 

 

 

 

In/off-line operation

50

 

 

     Non-washable pullets/flats

60

 

 

     No equipment for in-plant     decontamination

50

 

 

     No separation off-line eggs

50

 

 

    No designated parking  for staff

50

 

 

 

Subtotal                                              ___________   _____________

 

 

 

                                                             Maximum                                         

OPERATIONAL BIOSECURITY  Risk Score     Facility Score             Comments

Deficient management of decontamination

100

 

 

No biological separation from contract farms/birds

50

 

 

 

Deficient management of service crews:

 

 

 

     transfer

30

 

 

     vaccination/beak trim

30

 

 

     depletion

50

 

 

 

Feed delivery (off-farm)

100

 

 

Failure to train personnel in biosecurity, decontamination & PPE

100

 

 

Defective pest control

50

 

 

No inter-flock decontamination

30

 

 

Co-mingling off-line and in-line eggs

50

 

 

 

 

 

 

 

Deficiencies in flock movement:

 

 

 

     placement

30

 

 

     transfer

30

 

 

     depletion

50

 

 

 

Deficiencies in maintenance

 

 

 

     personnel

50

 

 

     equipment

30

 

 

 

 

 

 

 

No contingency-plan for emergencies

50

 

 

Absence of equipment for decontamination

50

 

 

Deficiencies in health monitoring

50

 

 

Failure to conduct biosecurity self audits

40

 

 

Defective manure & litter management

50

 

 



Subtotal                                                 ____________   _______________    

 

 

 

FEED MILL

STRUCTURAL & OPERATIONAL Maximum                                      

 BIOSECURITY                               Risk Score     Facility Score        Comments

Feed Supply (off-site only)

 

 

 

Lack of documentation & audits

50

 

 

 

 

 

 

Deficient personnel training:

 

 

 

     supervisors

30

 

 

     drivers

50

 

 

 

 

 

 

Defective vehicle decontamination

100

 

 

Absence of fencing & security

50

 

 

Lack of trace-back & records

50

 

 

No-impervious parking & road access

70

 

 

Unstructured delivery scheduling

50

 

 

 

Subtotal                                           ___________   ______________

 

COMPILATION OF RISK SCORE

 

                                                MAXIMUM RISK                FACILITY RISK

 

Conceptual Biosecurity           ________________                ______________________________

 

Structural Biosecurity             ________________              _______________________________                       

 

Operational Biosecurity          ________________              _____________________________               

 

Feed Supply (if applicable)     ________________              ______________________________             

 

GRAND TOTAL                  ________________              _____________________________

 

 

 

 

 

Signed___________________  Date_____________