Identification of aesculin-hydrolyzing streptococci, lactococci, aerococci and enterococci from subclinical intramammary infections in dairy cows

• Published in: Veterinary microbiology Vol. 70; no. 1; pp. 87 - 94
• Main Authors: Devriese, L.A, Hommez, J, Laevens, H, Pot, B, Vandamme, P, Haesebrouck, F
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.10.1999; Elsevier Science
• Subjects: Aerococcus viridans; Aesculin; Animals; Bacteriology; Biological and medical sciences; BOVINE MASTITIS; Cattle; Cattle-bacteria; DAIRY COWS; Dairying; DIAGNOSIS; Diagnosis-bacteria; DIAGNOSTIC; DIAGNOSTICO; Enterococcus - isolation & purification; Enterococcus - metabolism; Enterococcus faecalis; Esculin - metabolism; Female; Fundamental and applied biological sciences. Psychology; Hydrolysis; Lactococcus - isolation & purification; Lactococcus - metabolism; Lactococcus garvieae; MAMMITE BOVINE; Mastitis; MASTITIS BOVINA; Mastitis, Bovine - microbiology; Microbiology; Milk - microbiology; Pathogenicity, virulence, toxins, bacteriocins, pyrogens, host-bacteria relations, miscellaneous strains; Streptococcaceae - isolation & purification; Streptococcaceae - metabolism; STREPTOCOCCUS; Streptococcus - isolation & purification; Streptococcus - metabolism; Streptococcus bovis; Streptococcus gallolyticus; Streptococcus pluranimalium; Streptococcus spp; Streptococcus uberis; VACAS LECHERAS; VACHE LAITIERE; Cattle-bacteria; Mastitis; Streptococcus spp; Diagnosis-bacteria; Enterococcus; Dairy cattle; Metabolism; Infection; Mammary gland diseases; Streptococcaceae; Vertebrata; Mammalia; Streptococcus; Lactococcus; Bacteriosis; Bacteria; Micrococcales; Female; Artiodactyla; Clinical isolate; Ungulata
• ISSN: 0378-1135; 1873-2542
• DOI: 10.1016/S0378-1135(99)00124-8

Aesculin-hydrolyzing, catalase-negative, Gram-positive cocci isolated from subclinical intramammary infections in dairy cows were identified to species level using growth characteristics and biochemical activity. The results indicated that the aesculin-hydrolyzing cocci associated with this type of infection are a very heterogenic group. S. uberis strains, including inulin- or β-glucuronidase-negative isolates, accounted for only about one-third of the collection, and Enterococcus faecalis strains for one-fifth. Other species of some importance included (in descending order of isolation frequency) Aerococcus viridans, Streptococcus pluranimalium, Lactococcus garvieae, Streptococcus bovis and Streptococcus gallolyticus.