Avian tuberculosis is a chronic disease usually only seen in birds over one year of age. It is a very slow progressing disease which causes ‘cheesy’ masses in different organs. It is characterised by a lack of thriftiness, lower egg production and eventually death. Birds gradually lose weight and usually have persisting diarrhoea.
There is no treatment for tuberculosis and the birds will eventually die.
Wild birds and rodents may be carriers.