A total of 97 calves (84 local and 13 cross breed) were selected randomly and regularly monitored
up to six months of age. Information on potential risk factors was collected by personal observation during the
regular visit to farms and from questionnaire survey conducted during the study period. Chi-Square statistics and
comparison of proportions were used to analyze the data. Out of 97 small holder dairy farms, 88 (90.7%) follow
an extensive type of production system