VMP 420 Lecture Notes - Lecture 10: Photophobia, Pathogenic Bacteria, Pain Management
1 Feb 2020
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Document Summary
Caused by moraxella bovis: has pilli and toxin that it secretes to melt the cornea, we have had a vaccine for this for a while. Moraxella bovoculi: recently made a new vaccine for this, causes winter pinkeye . Clinical signs at first: belepharospasm (squinting, photophobia (light avoidance, epiphora (tearing, conjunctivitis (inflammation) Second step signs: eating away at their cornea (ulceration, eye ruptures. Losses: value of animal, gain less weight, farmers lose money on antibiotics and on a lower weight animal. Treatment: 3rd eyelid suture, suture the eyelid over the eye to help with treatment process. Blocks the sun from the eye: subconjunctival injection of antibiotics. Cornea: clear part of eye: made of layers of fibers, when compacted, cattle can see well, when not as compacted, fluid enters and makes the cornea cloudy. #1 problem in the beef cattle production. Most common and costly disease affecting cattle. Once their lungs are damaged, they do not completely recover.
