DISEASE PREVENTION IN COMMERCIAL POULTRY

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DISEASE PREVENTION IN COMMERCIAL POULTRY

• VME 4103
• Preventive and Production Medicine
• Gary D. Butcher, DVM, PhD
• College of Veterinary Medicine/IFAS
• University of Florida

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DISEASE PREVENTION Biosecurity
Immunity
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BIOSECURITY FOR POULTRY
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Objectives

• Disease prevention through effective biosecurity
  practices
• If breakdown in biosecurity and disease challenge
  occurs, ensure chickens are immunocompetent to
  limit losses

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• Disease organisms get to other farms by one of
  the above ways 90 of the time. Break the cycle.

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INVISIBLE KILLERS OF POULTRY

• Disease
• Gumboro (Bursal Disease)
• Coccidiosis
• Fowl Cholera
• Infectious Coryza
• Avian Influenza
• Laringotracheitis
• Mareks Disease
• Newcastle
• Mycoplasmosis
• Salmonellosis
• Avian Tuberculosis

• Lifespan Away from Bird
• Months
• Months
• Weeks
• Hours to days
• Days to weeks
• Days
• Weeks
• Days to weeks
• Hours to days
• Weeks
• Years

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The development of an infectious disease
depends on three variables

• Resistance of the bird
• Virulence of the disease organism
• Dosage of the organism

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