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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
- Isolation of C. perfringens is not diagnostic
How can necrotic enteritis be prevented or controlled? 3
- Diet formulation
- Identify concurrent disease stress
What is the etiological agent that causes Chronic Respiratory Disease in galliformes?
What is the etiological agent that causes synovitis and respiratory disease in chickens and turkeys?
How is Mycoplasmosis diagnosed? 3
- Serology (Rapid plate agglt, ELISA, and HI)
What is the most common final pathogen in many species of poultry?
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
- 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
How is Infectious Coryza diagnosed?
Culture or PCR
What co-pathogen is likely with Infectious coryza?
How is Infectious coryza prevented or controlled? 2
What is the etiological agent that is the cause of Fowl Cholera?
What species are affected by Fowl Cholera? 4
- Turkeys (all ages)
- Chickens (mature)
- Ducks and geese
What are some ways fowl cholera is prevented and controlled? 4
- Vector control
- Water sanitation
- Biosecurity and sanitation