A retrospective study of calf losses on the Central Dairy Cattle Breeding Station in Bangladesh was carried out between January 1980 and July 1992 (both months inclusive). Analyses of data on 681 abortions and 8623 live born calves out of which 1146 died within one year of age revealed that during the survey period mean annual abortion rate and mean annual calf mortality rate from birth to one year of age were 7.6±4.8% and 13.4±3.8%, respectively. Gastro-enteritis caused 30.7% of all deaths followed by respiratory diseases (16.7%). Tuberculosis and foot and mouth disease were responsible for 11.3% and 7.6% of the deaths, respectively. Calf mortality rate was significantly higher in male calves and in calves having exotic breeding and lower birth weight. Age at death during the first 12 months of life was described by life table methods. Life table analyses of all deaths or deaths due to gastro-enteritis and respiratory diseases demonstrated that mortality peaked during neonatal period (28 days inclusive) of life.