17-Schaal Layer Biosecurity share

Genetic Excellence ®Genetic Excellence ®

Layer Biosecurity

© Hy‐Line International

USAHA Transmissible Diseases of Poultry ‐ Oct 2015

Travis Schaal, DVMInternal Technical Services Manager

Genetic Excellence ®© Hy‐Line International

Genetic Excellence ®

Historical Disease Control by Vaccination

Adequate immunization:Marek’s, infectious bursal disease, E. coli, avian encephalomyelitis, Mycoplasma gallisepticum, fowl pox, infectious laryngotracheitis, infectious bronchitis, and Newcastle disease

Mycoplasma synoviae as challenge model…



Chicks

Other Poultry and Animals

Feed andWater People

Manure

Insects

HatcheryVehicles and EquipmentWild BirdsVaccines &

Equipment

Rodents

Housing


Layer Complex Daily Inputs/Outputs

Contract crewsFarm personnelLunchesToolsPersonal vehiclesFeed ingredient trucks (Hundreds!)Feed trucksPullet trucks/cartsMAK carts/CO2 tanksPackage deliveries ‐ UPS, USPS, FedExOffice suppliesEgg packing materialsEggsManure handling trucksManureTractorsLiquid egg trucksDead birds


All are potentially sharedand difficult and expensive to clean($$$ and time)


Manure Handling

Belted style houses produce dry manure“Local” land application may be 50+ milesNeighbors spreading manure/litter on windy days

Contaminate equipment/personnel

Difficult to wash trucks/tractorsA dirty job!Many trips to move manure



Contract Crews in Layer Facilities Contract crew activities:

VaccinationBeak treatmentPullet movingTruckingFlock depletionFarm staffing?

Downtime difficult to enforceHow to get an honest answer?Want full time work



Considerations for Contract Crewsand Employees

Personal vehiclesClothing and shoesLunchesWhere they live, who they live with?

Cross traffic in small towns



Geographic Biosecurity

Infected layer complexes produced insane amounts of HPAI virusWouldn’t want to be downwind!Filters are not economical…



Biosecurity LimitationsCommunication

Mandating rather than discussing

Understanding all farm inputs and out‐putsShower in‐shower out sounds so nice!Is all equipment “showering in”?Truck sanitation

Management and farm staff buy‐inWhat “pencils out”Practices followed everyday, every time

Deviations from protocolHow and who handles?



Employee Buy‐InDescribing why procedures are importantProvide choices:

Footwear and clothing – comfort and safetyMinimize inconvenience (not for the pathogens!)

Feedback on reality vs written protocolAnonymous? Regular meetings

All visitors, contractors, maintenance, management must follow same proceduresIncentives

Example: build in shower time for hourlyShort‐cuts cause problems



Conclusions

Cultural biosecurity takes time and repetitionTop down, bottom up involvementPractical and effective > complicatedEducation at every opportunityContinual improvement



“Biosecurity is inconvenient.”‐ Dr. John Glisson


17-Schaal Layer Biosecurity share

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