Skin diseases in cattle Flashcards
Which chewing louse affects cattle
Bovicola bovis
Which sucking lice affect cattle
Haematopnius eurysternus
Linognathus vituli
Solenopotes capilatus
Treatment of lice in cows
And what would we choose in dairy cattle
- Avermectins: in lactating dairy cattle choose Eprinomectin pour on (0 milk withdrawel)
- Synthetic pyrethroids as topical treatment
How long can lice life off the host for
3 weeks
What causes the lesions seen in mange
Hypersensitivity reaction to mite faecal antigens
What type of mange is most common in cattle int he UK
Chorioptic
Then sarcoptic
What treatment do we use for mange; specific formulations
AVERMECTINS
> For surface mites e.g chorioptic; use pour-ons
> For burrowing mites e.g sarcoptic; use injectable formulation
NB: eprinomectin is good for lactating dairy cattle because no milk withdrawel
Whcih avermectin has no milk withdrawel time
Eprinomectin
What condition caused by fly larvae in notifiable
Warble fly; i.e hypoderma species
Fly strike in cattle
Less common than in sheep
See infestation of larvae in soiled skin/wounds
-> So avoid dehorning cattle in summer
What is the causative agent in rain scald.mud fever
Dermatophilis confolenses
What are most subcutaneous abscesses in cattle asccoatied with
Trueperella pyogenes
Cause of skin tuberculosis in cattle
Non-specific TB i.e NOT M bovisWh
What is the causative agent of ringworm in cattle
Trichophyton verrusosum
What is the cause of cauliflower like warts on cattle
= fibropappilomas
From bovine papilloma viruses
