Phenotypic and Serotypic Characterization of Staphylococcus aureus Strains from Subclinical Mastitis Cattle (KARAKTERISASI SECARA FENOTIPE DAN SEROTIPE STAPHYLOCOCCUS AUREUS YANG BERASAL DARI MASTITIS SUBKLINIK PADA SAPI)

Staphylococcus aureus is known as a major causative agent of mastitis in dairy cattle. In the presentstudy, 104 isolates of Staphlylococcus originated from subclinical mastitis cattle characterized for thephenotypic properties and the presence of Staphylococcal protein A (Spa). Some bacteria were resistancesagainst several antibiotics were also studied, such as, streptomycin, cefepime, nitrofurantoin, amikacin,chloramphenicol, and ciprofloxacin. About 78% of the isolated were moderately sensitive to nitrofurantoin,while 89% were highly resistant to cefepime and ciprofloxacin. Using the various mammals’ sera, sevenisolates revealed the presence of Spa.