Abstract
The populaiton of Tigers (Panthera tigris) in Indian zoos number 347 in 2000. Average mortality rate per annum during the period was 8.26%. The present study suggests that mortality is maximum during winters. Diseases of the digestive and respiratory systems and behavioural disorders are the major causes, being responsible for 23 deaths each. Other causes of concern are generalized conditions and diseases of the blood, Iymphatic and cardiovascular system. Since diagnosis of sick animals is a major problem preventive measures are discussed.