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[The Automicrobic System (AMS)--a new test method for the classification and susceptibility testing of bovine
1II.Medizinischen Universitätsklinik für Klauentiere, Veterinärmedizinischen Universität Wien.
Abstract:
In the period of January 1987 to March 1988 15,800 quarter milk samples from cows of Lower Austrian problem herds were collected and 744 streptococci strains isolated. These 744 isolates were identified by means of the AUTO-MICROBIC-SYSTEM (AMS). As comparative methods the test system API 20 STREP as well as the comparison with the agar-diffusion test. Due to AMS 360 (=48.4%) of the 744 isolates examined could be identified as streptococci and referred to following species: 16 (=4.4%) Sc. agalactiae, 205 (=56.9%) Enterococci; 74 (=20.5%) Sc. uberis; 61 (=16.9%) Sc. of the viridans streptococci and 4 (=1.1%) Sc. pneumoniae. Both test systems AMS and API 20 STREP showed a coincidence of 91.6%.