Bacteriological studies on mastitis in dairy Friesian cattle in Quena governorate

Document Type : Original Article


1 Animal Health Research Institute Quena , Regional Laboratory

2 Animal medicine college of Veterinary Medicine, South Valley University, Quena, Egypt.


Fifty five milk samples were collected from dairy Friesian cows suffering from clinical mastitis in a farm at Quena Governorate. The samples were subjected to microbiological examination .The main isolated pathogenic bacteria were identified biochemically as Escherichia coli (36.3%), Staphylococcus aureus (23.6%) Streptococcus agalactiae (18.2%), Klebsiella pneumoniae (12.7%) and bacterial free samples (9.1%) . Sensitivity tests for the bacterial isolates revealed that the tested strains were sensitive to ciprofloxacin, nortril, gentamicin and lincospectin


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