Morphometrical Pathological And Bacteriological Study Of Mammary Gland Of Cows With Subclinical And Clinical Mastitis In Selected Farms And Abattoirs In Central Ethiopia

The cross sectional study was conducted from November 2015 to May 2016 in Bishoftu, AddisrnAbaba and Adama areas to evaluate cow’s udder morphometrical changes in relation to mastitis,rnmammary gland lesion characterization and isolation and characterization of aerobic bacteria fromrnlesions. A total of 252 dairy cow from selected dairy farms in Bishofu and 72 udders from AddisrnAbaba and Adama municipality abattoirs were included in the study. The study revealed that thernoverall prevalence of mastitis was found to be 44.44% with clinical and sub-clinical mastitisrnaccounting 16.11% and 36.67%, respectively. Morphometrically, cows with longer and thicker teats,rngreater distance between hind teats, Longer glandular longitudinal length and shorter teat end to floorrndistance had higher frequency of subclinical mastitis and the difference was statistically significantrn(P0.05) with subclinicalrnmastitis. Distance between hind teats and front udder height had direct statistically (p

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