Page 43 - Primary Five Science
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Diseases


           Diseases in poultry are mainly caused by;

           1. Viruses

                Examples of viral diseases include;

                      New castle disease



                          Bird flu


                          Gumboro disease


             Fowl pox


           2. Bacteria



           Examples of bacterial diseases include;


             Fowl typhoid


             Pneumonia



           3. Protozoa


           Examples of diseases caused by protozoa;

             Coccidiosis

             Blackhead






           Factors that promote spread of
           diseases:



             Overcrowding chicken



             Poor hygiene


             Keeping infected chicken within the farm
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