| Popis: |
The risk factors related to mastitis is necessary for prevention and control of mastitis, an economically important dairy disease. The purpose of the study is to determine the prevalence and identify the potential risk factors of sub-clinical mastitis in dairy cows at some selected areas of Patuakhali district, Bangladesh from March 2017 to February 2018. A total of 200 lactating cows were randomly collected from study area. California Mastitis Test (CMT), White Side Test (WST) and Surf Field Mastitis Test (SFMT) was performed on each quarter sample of lactating cows at field condition for the determination of subclinical mastitis in dairy cows. Overall prevalence of subclinical mastitis was 10% (20/200). The prevalence of subclinical mastitis was comparatively higher in cross breed (65%) as compared to local breed (35%). The highest prevalence of SCM in dairy cows was also found in mid lactation period (64.71%), Backyard rearing of cows (75%), a cow with post parturient disease (75%) and 3rd parity group (45%). Moreover, the cows grazing in free range areas; poor health conditions; season and feeding management increase the susceptibility of SCM. For early diagnosis of subclinical mastitis, CMT could be performed regularly as a control measures and emphasis should be provided on farm management practices, particularly on milking hygiene and udder sanitation |
