P. Waller and K. , Antimicrobial susceptibility of udder pathogens from cases of 271 acute clinical mastitis in dairy cows, Vet. Microbiol, vol.136, pp.142-149, 2009.

L. Bryan and A. Godfrey, Beta-lactamase antibiotics: mode of action and bacterial 273 resistance Antibiotics in Laboratory Medicine, p.274, 1991.

A. Aspán, Comparison of a commercialized phenotyping system, antimicrobial 277 susceptibility testing, and tuf gene sequence-based genotyping for species-level 278 identification of coagulase-negative staphylococci isolated from cases of bovine 279 mastitis, Vet. Microbiol, vol.134, pp.327-333, 2009.

M. Nilsson-Öst and B. Bengtsson, Microbial aetiology of acute clinical mastitis and 282 agent-specific risk factors, Vet. Microbiol, vol.137, pp.90-97, 2009.

J. Jarp, Classification of coagulase-negative staphylococci isolated from bovine clinical and subclinical mastitis, Veterinary Microbiology, vol.27, issue.2, pp.151-158, 1991.
DOI : 10.1016/0378-1135(91)90006-2