Melophagus Infestation

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Pathogenesis

  • Most numerous in autumn and winter
  • Located in the superficial layers of the fleece
    • This aids transmission
  • Long wooled breeds are most susceptible to infection
  • Cause anaemia
  • Wool damage
    • Irritation and self-inflicted damage
    • Staining by ked faeces
  • Intermediate host for non-pathogenic Trypanosoma melophagium in sheep


Control

  • Sheep dipping and spraying
  • Shearing to decrease numbers