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Case 4: Two Pumas were found dead

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Two radio-collared adult mountain lions (one male and one non-pregnant female) ... Both animals had extensive multifocal to coalescing dermatitis involving the ... – PowerPoint PPT presentation

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Title: Case 4: Two Pumas were found dead


1
Case 4Two Pumas were found dead
Lindsey, Rachel, and William
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4
The Case
  • Two radio-collared adult mountain lions (one male
    and one non-pregnant female) were found dead
  • The frozen carcasses were found in a moderate
    sate of post-mortem decomposition
  • Both animals had extensive multifocal to
    coalescing dermatitis involving the head,
    shoulders, and forepaws

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6
The Case
  • A field necropsy was performed on the female, and
    the whole head, hide, and a sample of the liver
    was frozen and submitted to the laboratory
  • The male was frozen and maintained in that state
    until he was transported to the state Animal
    Health and Food Safety Laboratory and necropsied

7
The Case
  • Gross skin legions of the head were treated with
    10 KOH and prepared as whole mounts in
    lactophenol and Hoyers mounting media
  • The male lion had multiple subserosal hemorrhages
    in thoracic and abdominal organs
  • After skinning of the male lion, examining of the
    joints, skull, and spinal column, no evidence of
    trauma was found

8
The Case
  • Both lions had diffuse and chronic dermatitis
  • The epidermis was covered by thick, sometimes
    spongiform crusts with intralesional colonies of
    cocciod bacteria and nests of parasites
  • Parasitic tunnels were present within the stratum
    corneum, often forming a crescent-shaped notch
    within which parasites could be found

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10
ConclusionSarcoptic Mange
  • Life cycle of mite (Sarcoptes scabiei) is
    completed in burrows with in epidermis of the
    host
  • Adults mate in small pockets near the surface of
    the skin
  • Highly contagious with direct transfer of mites
    at any stage of their development

11
ConclusionSarcoptic Mange
  • The infection would cause crusting, hair loss,
    and scabbing.
  • Host could die from exposure to the elements that
    results from hair loss in the winter

12
Question
  • Where do the adult mites mate?

13
Question
  • Where do the adult mites mate?
  • In small pockets near the surface of the skin
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