Ten strains of each of Cl.chauvoei and Cl. septicum were tested for their fibrinolytic activities. 40% of Cl.chauvoei and Cl.septicum strains produced complete lysis of sheep plasma, while rabbit plasma was completely lysed by 50% of Cl.chauvoei strains and 20% of CI septicum strains. Only 10% of both Cl.septicum strains lysed guinea-pigs plasma. Cooked meat broth did not produced any fibrinolytic activity with either Cl.chauvoei or Cl.septicu:m.
The optimum production of fibrinolysin of Cl.chauvoei was at 24 hours while those of Cl.septicum at 48 - 72 hour.
for the fibrinolysin test was between 5.8
The most suitable pH - 6.8.