Management methods to prevent disease

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Management methods to prevent disease

• There are two kinds of diseases
• Infectious
• Noninfectious
• But.All diseases are caused by management

David A Halvorson, DVM
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Management methods to prevent disease in the
poultry industry

• Reduce or eliminate egg transmission
• Immunization
• Medication
• Biosecurity

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1. Reduce or eliminate egg transmission from
parents

• National Poultry Improvement Plan (NPIP)
• The plan
• Participants
• Specific diseases
• Hatching egg handling
• nest management
• gathering
• sanitation

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2. Immunization

• Selection of vaccines
• Programming vaccines
• Storage and handling of vaccines
• Application of vaccines

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3. Medication

• Preventive medication
• None routinely used in table egg production
• Coccidiostats and drugs to control enteric
  pathogens
• Treatment
• Only approved drugs
• No prescription drugs in egg layers
• Prescription drugs can be used in meat birds
• Route of administration water or feed

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4. What is biosecurity?

• The use of management techniques to prevent
  disease
• Sanitation
• Isolation
• Traffic control
• Universally preached but widely misunderstood by
  industry people, regulatory officials,
  academicians, etc.

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Biosecurity

• Why go to all this work to keep diseases out?
• Animal Health
• Humane Care
• Economic Performance
• Public Health

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How are diseases introduced?

• people
• poultry
• facilities and equipment
• vectors
• vaccines

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Biosecurity

• What are the characteristics of the diseases
  were trying to keep out?
• What are the essentials of biosecurity?
• Why does biosecurity fail?

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Examples of the diseases that can be kept out by
biosecurity

• Mycoplasma
• Mites and lice
• Infectious coryza
• Avian influenza
• Others some Salmonella, Pasteurella, etc.

What are their characteristics?
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What are the essentials of biosecurity?

• The concept
• The structure
• The operation

Simon Shane
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Conceptual biosecurity

• The concept that diseases are preventable is the
  foundation of biosecurity!
• The location of the farms and houses
• Geographic separation
• Type of housing

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Structural biosecurity

• How we set up the structure
• Layout of the farm
• Location of roads, drainage, fences etc.
• Construction
• Biosecurity buildings

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Operational biosecurity
What we do day to day

• Role of employees in keeping diseases out
• Policies, Procedures and Practices
• Bird moving
• people entry policies and procedures
• supplies and equipment entry policies and
  procedures
• everyday practices that affect health and
  performance
• Monitoring of health status and immunity
• Continuous review by all employees

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Broilers
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Turkeys
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Layers
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Biosecurity

• Conceptual
• Basis or foundation for what we do
• Structural
• How all aspects of the farm are constructed
• Operational
• What we do day to day

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Why does biosecurity fail?

• Poor biosecurity concept
• Bean counter mentality
• Lack of management understanding
• Poor structure
• Example facilities not bird proof
• Poor operation
• Misunderstandings
• Noncompliance
• Inability to comply

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Summary

• The layer industry has 4 ways to prevent disease.
• prevent vertical transmission major effort
• medication little used
• vaccination widely practiced
• biosecurity very important