The antimicrobial susceptibility of 68 Staphylococcus aureus isolates collected during 2004 from milk of cows affected by subclinical mastitis was examined. The anti- microbial agents tested were the β-lactams, penicillin G, amoxicillin, ampicillin, cloxacillin, amoxicillin + cla- vulanate, cephalonium, and cefoperazone; and other drugs including lincomycin, oxytetracycline, doxycy- cline, and kanamycin. Minimum inhibitory concentra- tions recorded show that only certain β-lactamase–re- sistant penicillins (specifically cloxacillin) or penicillin combinations (amoxicillin + clavulanate) were consis- tently effective against Staph. aureus, whereas the other β-lactam derivatives and drugs from other phar- macological groups were either moderately effective or ineffective. Thus, β-lactamase–resistant penicillins are to be considered the antimicrobial agents of choice for treatment of bovine mastitis resulting from infection by Staph. aureus. Key words: Staphylococcus aureus, bovine, minimum inhibitory concentration
Antimicrobial drug susceptibility of Staphylococcus aureus isolated from subclinical bovine mastitis in Italy / P. Moroni, G. Pisoni, M. Antonini, R.E. Villa, P. Boettcher, S. Carli. - In: JOURNAL OF DAIRY SCIENCE. - ISSN 0022-0302. - 89:8(2006), pp. 2973-2976.
Titolo: | Antimicrobial drug susceptibility of Staphylococcus aureus isolated from subclinical bovine mastitis in Italy |
Autori: | MORONI, PAOLO (Primo) PISONI, GIULIANO (Secondo) CARLI, SILVANO (Ultimo) |
Settore Scientifico Disciplinare: | Settore VET/07 - Farmacologia e Tossicologia Veterinaria Settore VET/05 - Malattie Infettive degli Animali Domestici |
Data di pubblicazione: | 2006 |
Rivista: | |
Tipologia: | Article (author) |
Digital Object Identifier (DOI): | http://dx.doi.org/10.3168/jds.S0022-0302(06)72569-3 |
Appare nelle tipologie: | 01 - Articolo su periodico |