Antimicrobial susceptibility of staphylococcus aureus causing bovine mastitis in argentine dairy herds Report as inadecuate




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C. Bantar ; L.F. CALVINHO ;Revista Argentina de Microbiología 2008, 40 2

Author: N.B. RUSSI

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Revista Argentina de Microbiología ISSN: 0325-7541 ram@aam.org.ar Asociación Argentina de Microbiología Argentina RUSSI, N.B.; Bantar, C.; CALVINHO, L.F. Antimicrobial susceptibility of Staphylococcus aureus causing bovine mastitis in Argentine dairy herds Revista Argentina de Microbiología, vol.
40, núm.
2, 2008, pp.
116-119 Asociación Argentina de Microbiología Buenos Aires, Argentina Available in: http:--www.redalyc.org-articulo.oa?id=213016787011 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative 116 Revista Argentina de Microbiología (2008) 40:0325-7541 116-119 ISSN Revista Argentina de Microbiología (2008) 40: 116-119 INFORME BREVE Antimicrobial susceptibility of Staphylococcus aureus causing bovine mastitis in Argentine dairy herds N.B.
RUSSI1, C.
BANTAR2, L.F.
CALVINHO1,3 * 1 Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Rvdo.
Padre Kreder 2805 (3080) Esperanza, Pcia.
de Santa Fe, Argentina; 2Laboratorio Domingo I Nanni, Colón 122 (3100) Paraná, Entre Ríos, Argentina; 3 Estación Experimental Agropecuaria Rafaela, Instituto Nacional de Tecnología Agropecuaria, C.C.
22 (2300) Rafaela, Pcia.
de Santa Fe, Argentina. *Correspondence.
E-mail: lcalvinho@rafaela.inta.gov.ar ABSTRACT We assessed the in vitro activity of selected antimicrobial agents against 95 Staphylococcus aureus strains causing both clinical and subclinical bovine mastitis belonging to 61 dairy farms from the Central dairy area of Argentina. Minimal inhibitory concentrations (MICs) of penicillin, oxacillin, gentamicin, erythromycin, enrofloxacin and florfenicol were estimated.
In addition, the agar diffusion test was performed.
MIC50 and MIC90 were as follows: penicillin, 0.05 and 4 µg-ml; oxacillin, 0.25 and 0.25 µg-ml...





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