PMID- 21957734 OWN - NLM STAT- MEDLINE DCOM- 20111110 LR - 20191112 IS - 1505-1773 (Print) IS - 1505-1773 (Linking) VI - 14 IP - 3 DP - 2011 TI - Antibiotic susceptibility of methicillin-resistant and methicillin-susceptible coagulase-negative staphylococci isolated from bovine mastitis. PG - 405-10 AB - The aim of the present study was to evaluate the antibiotic susceptibility of methicillin-susceptible (MS) and methicillin-resistant (MR) coagulase-negative Staphylococcus (CNS) strains isolated from milk of cows with mastitis. The study was conducted on 100 CNS strains (20 MRCNS and 80 MSCNS) isolated from milk samples of 86 cows from the Lublin (Poland) region farms. Antibiotic susceptibility of microorganisms was evaluated using the disc-diffusion method on the Mueller-Hinton agar according to the guidelines of the National Committee for Clinical Laboratory Standards (NCCLS). The highest efficacy against MSCNS was demonstrated for cephalosporin antibiotics, i.e. cefacetril (91.3%), ceftiofur (67.5%), cefoperazone (66.3%) and cephalexin (60.0% of susceptible MSCNS strains). Moreover, a high percentage of vancomycin-susceptible strains was demonstrated (83.8%). The activity of combination of amoxicillin with clavulanic acid and gentamicin was found weaker (63.8% and 61.3% of susceptible strains, respectively). About 50.0% of MSCNS were susceptible to erythromycin, enrofloxacine and amoxicillin. A large proportion of CNS was resistant to neomycin, penicillin, tetracycline, streptomycin, lincomycin and ampicillin (28.8%, 30.0%, 31.3%, 31.3%, 33.8% and 33.8% of susceptible strains, respectively). The highest percentage of MRCNS was susceptible to vancomycin (75.0%), erythromycin (65.0%) and streptomycin (50.0%). Their susceptibility to enrofloxacine (35.0%) as well as gentamicin and tetracycline (30.0%) was markedly lower. The lowest activity was found for lincomycin and neomycin (20.0% of susceptible MRCNS strains, each). FAU - Bochniarz, M AU - Bochniarz M AD - Department and Clinic of Animal Reproduction, Faculty of Veterinary Medicine, University of Life Sciences, Gleboka 30, 20-612 Lublin, Poland. mariolabochniarz@interia.pl FAU - Wawron, W AU - Wawron W LA - eng PT - Journal Article PL - Germany TA - Pol J Vet Sci JT - Polish journal of veterinary sciences JID - 101125473 RN - 0 (Anti-Bacterial Agents) SB - IM MH - Animals MH - Anti-Bacterial Agents/*pharmacology MH - Cattle MH - *Drug Resistance, Multiple, Bacterial MH - Female MH - Mastitis, Bovine/*microbiology MH - Methicillin-Resistant Staphylococcus aureus/*drug effects MH - Staphylococcal Infections/microbiology/*veterinary EDAT- 2011/10/01 06:00 MHDA- 2011/11/11 06:00 CRDT- 2011/10/01 06:00 PHST- 2011/10/01 06:00 [entrez] PHST- 2011/10/01 06:00 [pubmed] PHST- 2011/11/11 06:00 [medline] AID - 10.2478/v10181-011-0060-5 [doi] PST - ppublish SO - Pol J Vet Sci. 2011;14(3):405-10. doi: 10.2478/v10181-011-0060-5.