Chorioptic Mange

• • Often seen in rough-legged horses with heavy feathering
  • Induce crusty skin and lesions below the hocks and knees

• Mild condition in cattle
  • Rubbing and scratching
  • Hide damage
  • Usually affects the base of the tail, perineum and udder

• Usually found on legs of sheep
  • Mild condition

• Host-specific
• In cattle, horses, goats
• Caused by Chorioptes spp.
• Grossly:
  • Erythematous, papular, crusty lesions
  • Hairless, thickened skin
  • Areas usually affected:
    • Horses: lower hind legs
    • Cattle: lower hind legs, scrotum, perineum, tail, udder, thigh
    • Sheep: lower hind legs and scrotum
    • Goats: lower hind legs, hindquarters, abdomen