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RUM 510 SKIN - Coggle Diagram

- - - - Stage 1
        
        Hair matted together, paintbrush lesions
      - Stage 2
        
        Lesions coalesce -> scabs / crusts
      - Stage 3
        
        Accumulation of cutaneous keratinised material -> wart like lesions 0.5-2cm
        
        DD: Papillomas, but dermatophilosis lesions peel off easily
  - - - Economic
    - - Due to exudate on surface
- - - - Cats (DH?) shed mature oocytes in feed or water
      - Contaminated needles
      - Mechanically biting insects
  - - - Sterility in bulls
      - Reduced milk production
      - Skin lesions -> poor hides
      - Mortality (but <10%)
    - - Pyrexia, inappetence, weight loss, recumbency
      - Generalized oedema, swelling of the face and neck folds
      - Ocular + nasal discharge
      - Photophobia + hyperaemia of skin
      - Gen lymphadenopathy
      - Swollen, sensitive testes
    - - Oozing serosanguinous exudate -> maggot infestation
      - Thick, cracked skin
        
        Secondary bacterial infection
        
        Myasis
      - Movement painful
      - Loss of hair + epidermis
      - +- myositis, keratitis, periostitis, pneumonia, orchitis, epididymitis, perineuritis (due to widespread vasculitis)
      - Cyst on scleral conjunctiva and nasal mucosa 6-7w after pyrexia
- - - - Females 50-65mm
      - Found anywhere you find Musca flies
  - - - Green, yellow lesions resembling bruising, may extend into muscle
        
        Severe: caracass condemned
        
        Carcass trimming and downgrading
      - Considering long PPP, feedlot animals show these signs around slaughter
  - - - Only kills adults, microfilaria may cause resurgence of CS
      - Treat between 70-120d before slaughter to allow time for larvae to resolve and prevent resurgance
- - - - 10% mortaliity
      - Permenant hide damage, downgrading
      - Abortion due to pyrexia
      - Infertility
      - Marked milk reduction
      - Vet costs