Infectious Bovine Keratoconjunctivitis Flashcards
Common name for IBK
Pinkeye
Treatment
Oxytetracycline systemically (L-200) - there are others listed, but this is the main one
There can also be surgical correction - third eyelid flap or tarrsoraphy
What are the two main flies responsible for infection
Musca domestica (house fly) Musca autumnalis (face fly)
Main and other modes of transmission
Flies - main
Direct contact
Inanimate objects
Nasal secretions
What seasons have the highest incidence and why
Summer and fall
Due to increased flies, UV light, pollen production
Main causative agent
Moraxella bovis
Clinical signs?
Blepharospasm
Conjunctivitis
Small opaque region in center of cornea that progresses to deep central ulcer
Can also see: epiphora, decrease in appetite and weight and milk production, blindness due to corneal opacity,
Prevention
Eliminate environmental factors - protect eyes from UV light, reduce incidence of flies, keep brush cut, don’t feed from up high
Other organisms that can cause disease
Chlamydia
Infectious bovine rhinotracheitis
Mycoplasma
Neisseria catarrhalis
What is the hallmark clinical sign
Deep, central, corneal ulcer
Is there a vaccine?
Yes, but not commonly effective so not really used
Environmental factors involved
UV light
Flies
Dust and plant material
What age of cattle are commonly infected
Younger cattle
