| genotypic and phenotypic diversity of streptococcus dysgalactiae strains isolated from clinical and subclinical cases of bovine mastitis. | this study was conducted to characterize streptococcus dysgalactiae isolated from cases of bovine mastitis. one hundred strains from 100 dairy herds in denmark, 29 strains from 29 dairy herds in pennsylvania, usa, 7 reference strains and 18 strains consisting of 9 paired strains from 9 quarters were investigated using biotyping (utilization of tagatose and sorbitol) and hindiii ribotyping. four different biotypes were observed. only 34 of the 100 danish strains utilized either tagatose or sorbit ... | 1996 | 9008342 |