Abstract:
This cross-sectional study was conducted during the periods of August 2005 to January 2006 in
Gondar town and surrounding districts to determine the prevalence of subclinical mastitis.
Based on California Mastitis Test (CMT) of the 337 cows examined, 85 (25.22%) had
subclinical mastitis. And among the 1330 quarters examined 140 (10.52%) were CMT positive
and 18(1.4%) blind. Of the study areas Dabat has got the highest prevalence (40%) and the
lowest was at Debark (10%).
Crossbred cows were found to be affected significantly (p-value < 0.05) by the disease compared
to locals.
Key words: crossbreds, local zebu, prevalence
