CORRELATION BETWEEN CALIFORNIA MASTITIS TEST AND BACTERIOLOGICAL EXAMINATION OF GOAT MILK.

F. B. TONIN, A. NADER FILHO

Abstract


A total of 195 milk samples were submitted to CMT and bacteriological examination to evaluate the sensitivity, specificity and correlation between these two tests regularly used in the diagnosis of subclinical mastitis. Bacteriological results revealed a total of 66 (33.8%) positive samples, with a prevalence of 61 (92.4%) coagulase-negative Staphylococci and five (7.6%) coagulase-positive Staphylococci. California Mastitis Test had better results for sensitivity (57.6%), specificity (86.0%) and correlation (76.4%) when score ?traces where considered the threshold for subclinical mastitis trial in goats.
KEY-WORDS: Goat mastitis. California mastitis test. Bacteriological examination.



DOI: http://dx.doi.org/10.15361/2175-0106.2005v21n4p155-159