Infectious Bovine Keratoconjunctivitis (Pinkeye) Flashcards
1
Q
Why is pinkeye economically devastating for cattle producers?
A
- Decreased weight gain
- Decreased milk production
- Cost of treatment
2
Q
What is the main causative agent of pinkeye?
A
Moraxella bovis
3
Q
What cattle breed is the poster child for both squamous cell carcinoma (SCC) and pinkeye (IBK) and what is being done to prevent this from happening?
A
- Hereford cattle - now being bred to have pigment around their eyes
4
Q
What are three environmental factors that can lead to the development of pinkeye?
A
- Excessive UV light
- Flies
- Dust and plant material
5
Q
What are the three main ways that Moraxella Bovis can be transmitted?
A
- Direct contact
- Flies
- Inanimate objects
6
Q
What seasons see an increase in the presence of infectious bovine keratoconjunctivitis?
A
Summer and fall - due to increased flies, UV light and pollen production
7
Q
For bovine keratoconjunctivitis:
- State three clinical signs that you would expect to see
- What age group is most affected?
A
- Conjunctivitis, Blepharospasm, Small opaque region → progresses to deep corneal ulceration
- Typically younger cattle are the most affected
8
Q
For treatment and prevention of pinkeye:
- State the best antibiotic
- Evaluate the vaccine
A
- Oxytetracycline
- Vaccine is not consistently effective and therefore is not widely used