Hydropericardium-Hepatitis Syndrome, Angara Disease in broiler chicken

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This condition was first identified in broilers in Pakistan in 1987. It spread rapidly in broiler producing areas in that country and the same or a very similar condition has been seen in North and South America. It affects mainly broilers and broiler parents in rear and has also been seen in pigeons.

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Hydropericardium-Hepatitis Syndrome, Angara Disease in broiler chicken

  1. 1. Hydropericardium-Hepatitis Syndrome, Angara Disease in broiler chicken Dr.Kedar Karki
  2. 2. Introduction <ul><li>This condition was first identified in broilers in Pakistan in 1987. It spread rapidly in broiler producing areas in that country and the same or a very similar condition has been seen in North and South America. It affects mainly broilers and broiler parents in rear and has also been seen in pigeons. </li></ul>
  3. 3. <ul><li>It is a condition caused by an adenovirus, possibly in combination with an RNA virus and immunosuppression caused by Chick Anaemia Virus or Infectious Bursal Disease. </li></ul>
  4. 4. Introduction <ul><li>The disease is readily reproduced by inoculating birds with a bacteria-free filtrate of a liver extract from an affected bird. Mortality may reach 60% but more typically 10-30%. </li></ul>
  5. 5. Signs <ul><li>Sudden increase in mortality. </li></ul><ul><li>Lethargy. </li></ul><ul><li>Huddling with ruffled feathers. </li></ul><ul><li>Yellow mucoid droppings. </li></ul>
  6. 6. Post-mortem lesions <ul><li>Excessive straw-coloured fluid distending the pericardium (up to 10 mls). </li></ul><ul><li>Enlarged, pale friable liver and kidney. </li></ul><ul><li>Congestion of the carcase. </li></ul><ul><li>Lungs oedematous. </li></ul>
  7. 13. Hydropericardium in a chicken. Excessive fluid is seen in the pericardial sac. Liver is swollen.
  8. 14. Diagnosis <ul><li>Lesions, histopathology, virology. </li></ul>
  9. 15. Treatment <ul><li>None. Good water sanitation (e.g. treatment of drinking water with 0.1% of a 2.5% iodophor solution) appears to be beneficial. </li></ul>
  10. 16. Prevention <ul><li>The condition typically occurs in areas of high poultry density where multi-age operation is traditional. Control of predisposing immunosuppressive diseases may help limit losses. Formalin-inactivated oil adjuvant vaccines are reported to be highly effective and are used in areas where the condition is endemic. </li></ul>

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