CAT and Bovine mastitis: Reliable identification of the clinically most relevant PNC (Strep. uberis, Strep. agalactiae and Strep. dysgalactiae), and thus differentiation from other PNC, can be obtained by use of a combination of limited conventional microbiology (colony morphology, hemolysis type, and catalase reaction) as a first identification for triage and a multiplex PCR with specific primers restricted to these 3 pathogens involved in bovine mastitis.