Study in Micrococcus pyogenes from bovine mastitis

Abstract

Seventy-three specimens of Micrococcus pyogenes from cows with mastitis were studied. The production of hemolysins, coagulation of oxalated plasma, fermentation of manitol pigmentation and fusion of gelatin were serched simultaneously. It was verified that a significative number of specimens were able to produce α β lysins. It was not possible to obtain pure β toxin. In the case that the plate culture suggested only the presence of β fi lysin, the filtrate exhibited also α lysin. The hemolitic strain were all positive to the coagulase test. All the strain were of albus type. Fermentation of manitol was showed in all coagulase positive and toxin producing strains. The results obtained were discussed.