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In vitro antibiotic resistance of Staphylococci isolated from different animal species

The purpose of this study is to investigate resistance to antibiotics of Staphylococcus species isolated from various samples belonging to different animal species. Among 48 Staphylococcus spp. strains, Staphylococcus intermedius was the most common species, followed by S. aureus, S. epidermidis, S. hyicus, S. saprophyticus. In a total of 48 Staphylococcus strains, the highest antibiotic resistance was observed to oxacillin (79.17%), tetracycline (39.58%), and ampicillin and cefoxitin (31.25%). Of 48 Staphylococcus strains, 42 showed resistance to at least one antimicrobial agent, while 23 of the strains had multidrug resistance. Antimicrobial resistance to tetracycline and ampicillin, erythromycin, streptomycin was detected frequently in S. aureus,S. intermedius, and S. epidermidis, respectively. Resistance rates for ampicillin, cefoxitin, and enrofloxacin were determined as 66.67% in S. hyicus strains. S. saprophyticus was determined to show resistance to 13 antibiotics other than meropenem. The highest antibiotic resistance was determined in S. aureus, S. intermedius, S. epidermidis, and in 48 Staphylococcus strains to oxacillin. Consequently, this study revealed resistance to various antibiotics in Staphylococcus species. Additionally, the presence of high oxacillin resistance and multidrug resistance in the Staphylococcus strains revealed the importance of determination of antimicrobial susceptibility before treatment and for rational use of antibiotics.

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