THE MERCK VETERINARY MANUALmultimedia

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  • Common Infectious Diseases in Backyard Poultry
  • Marek's disease, irregular margins and color change of pupils

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    Marek's disease, irregular margins and color change of pupils

    Marek's disease in a chicken showing irregular margins of the pupils with grayish color change.

    Courtesy of Dr. Patricia Wakenell.

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