CHRONIC RESPIRATORY DISEASE (CRD) – MYCOPLASMOSIS

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In the early stages Mycoplasma gallisepticum infection causes watery to purulent eye and nasal discharge and inflammation which can cause the eye to appear misshapen as seen in Image 1.

The infection spreads to the sinuses and the upper respiratory tract leading to coughing and difficulty in breathing.See Image 2.

The secondary infection of E. coli causes varying degrees of peritonitis and death. Collibacillosis is caused by coliform bacteria which are abundant in the ;poultry environment. The bacteria gains its entrance to the visceral organs through damaged intestinal lining, damaged blood vessels or via the respiratory tract by inhaling contaminated dust particles. Under conditions where infection becomes chronic there is generalised peritonitis and deposits of fibrin as a result of immune response as seen in Image 3 as white deposits on the liver.

 

 

 

 


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