Avian II

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HLW
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151385
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Avian II
Updated:
2012-05-01 08:25:12
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Avian II
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Avian II
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  1. What is the etiological agent behind necrotic enteritis?
    Clostridium perfringens type C
  2. What animals are generally infected with necrotic enteritis?
    Chickens 2-8 weeks
  3. What feeds promote Clostridium perfringens type C overgrowth? 2
    • Animal by products
    • Wheat diets
  4. What lesions are associated with necrotic enteritis?
    • Fibrinonecrotic enteritis
    • Hepatic infarction
  5. How is necrotic enteritis diagnosed? 3
    • Gross lesions
    • Histopathology
    • Isolation of C. perfringens is not diagnostic
  6. How can necrotic enteritis be prevented or controlled? 3
    • Diet formulation
    • Identify concurrent disease stress
    • Antibiotics
  7. What is the etiological agent that causes Chronic Respiratory Disease in galliformes?
    Mycoplasma gallisepticum
  8. What is the etiological agent that causes synovitis and respiratory disease in chickens and turkeys?
    Mycoplasma synoviae
  9. How is Mycoplasmosis diagnosed? 3
    • Serology (Rapid plate agglt, ELISA, and HI)
    • PCR
    • Isolation
  10. What is the most common final pathogen in many species of poultry?
    Escherichia coli
  11. What are some respiratory viruses that will cause increased host susceptibility to E. coli? 4
    • Newcastle dz
    • Infectious bronchitis
    • Pneumovirus infection
    • Avian influenza
  12. What are some factors that will cause increased host susceptibility to E. coli, other than respiratory viruses? 6
    • Mycoplasma
    • Bordetella
    • Ammonia
    • Respiratory cryptosporidium
    • Bursal dz
    • Chicken infectious anemia
  13. How can you prevent an E. coli infection? 3
    • Identify stress or underlying condition
    • Closed water systems
    • E. coli vaccines
  14. What is the etiological agent that causes Infectious Coryza?
    Avibacterium (Haemophilus) paragallinarum
  15. What are some clinical signs associated with Infectious Coryza? 4
    • Nasal discharge
    • Facial edema
    • Conjunctivitis
    • Sinusitis
  16. How is Infectious Coryza diagnosed?
    Culture or PCR
  17. What co-pathogen is likely with Infectious coryza?
    Mycoplasma gallisepticum
  18. How is Infectious coryza prevented or controlled? 2
    • Biosecurity
    • Bacterin
  19. What is the etiological agent that is the cause of Fowl Cholera?
    Pasteurella multocida
  20. What species are affected by Fowl Cholera? 4
    • Turkeys (all ages)
    • Chickens (mature)
    • Ducks and geese
    • Quail
  21. What are some ways fowl cholera is prevented and controlled? 4
    • Vaccination
    • Vector control
    • Water sanitation
    • Biosecurity and sanitation

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