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