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Poultry diseases and treatment

Dr. Mujeeb Ather Asst. Director (Pathologist)
Veterinary Biological Research Institute, Hyderabad .

The exact cause of the disorder is not known.

SIGNS AND LESIONS

  • Mortality may ranges from 2 to 50%.
  • Renal involvement is the characteristic feature.
  • White pasting of pericloacal feathers.
  • Atrophy of the kidney, it is commonly and sometimes

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bilateral

  • Dilated ureters.
  • The surviving lobe of the kidney may be enlarged.
  • The ureters from atrophied lobes of kidneys are dilated and are full of white irregular concretions of calcium ureate.
  • In addition to kidneys similar deposits were found in different parts like, heart , lungs, liver proventriculus and spleen hock joints
  • In growing pullets swollen kidneys with tubular necrosis is seen.
  • Calcium urates were found in 5 day old chick.

 

Calcium ureate deposits around heart Calcium ureate deposits on the liver

HISTOPATHOLOGY

KIDNEY

  • Feathery crystals and basophilic spherical masses of urate.
  • Uric acid crystals surrounded by histiocytes and lymphocytes with

Haremorrhages.

  • Necrosis, fibrosis, haemorrhages with ureate deposits.
  • A significant reduction in the number of glomeruli.

The diseases which are commonly confused with visceral gout are.

Infectious bronchitis, excess dietary calcium, phosphorus deficiency, water deprivation and mycotoxins.