Approach to skin conditions of production animal Flashcards
What are the clinical signs of mites?
- Pruritus, Loss of fleece
- Multiple animals affected
How would you diagnose mites in sheep?
- Skin scrapes and microscopy
- Serology for AB sheep scab
How would you treat mites?
(even unaffected animals)
Injectable – macrocyclic lactones (e.g. doramectin) – difficult for Chorioptes!
Sheep- Plunge dipping in organophosphates (although environmentally
hazardous)
What are the clinical signs of mites
- Pruritus, loss of hair
- Pustular, crusted, scaly skin
- multiple animals are affected
How would you diagnose mites in cattle?
Skin scrapes and microscopy
How would you treat mites in cattle?
Pour-on Permethrin, Macrocyclic lactones (e.g. Ivermectin, eprinomectin)
Injectable – macrocyclic lactones (less effective for Chorioptes)
Move animals to “clean” housing (no animals for 3 weeks)
What are the clinical signs of lice cattle?
Pruritus and loss of hair
Rough skin > bruises > wounds > sec. infection
Anemia
How would you diagnose lice in cattle?
Visible parasites on skin surface
Skin scrapes and microscopy
How would you treat lice in cattle?
Pour-on/Spot-on pyrethroids (e.g. Deltamethrin) or
macrocyclic lactones
Injectable macrocyclic lactones will target sucking
lice only (less effective)
Repeat tx? Eggs!
How would you prevent lice in cattle?
Routine anti-ectoparasite treatments? Resistance?
Biosecurity (same as mites)
What are the clinical signs of foot and mouth disease?
Immediate movement restrictions
Strict biosecurity
Cull whole herd/flock
Vaccination possible in endemic countries
What are the clinical signs of vesicular stomatitis?
- Hypersalivation
- Similiar in appearance to FMD
- Vesicles, Ulcers, erosions
What are the clinical signs of bluetongue?
Oedema muzzle, tongue and coronary bands
Crusted muzzle
Sialorrhea and nasal discharge
Skin erythema
How would you diagnose bluetongue?
- Virus Isolation
- Serology
- PME
