THE EFFECT OF DIFFERENT STABILIZERS ON ΜΑΙΝΤΑΙNING VIABILITY OF LYOPHILIZED PASTEURELLA MULTOCIDA STRAINS

Authors

1 Veterinary Serum and Vaccine Research Institute, Abbasia, Cairo

2 Veterinary Serum and Vaccine Research Institute, Abbasia, Cairo.

Abstract

In the present study, different stabilizers were used. Results indicated that the best viability per- centage (70.60 and 68.00), mean death time in mice, microscopical examination and colonial morphology were shown in lyophilized strains stabilized by skimmed milk lactalbumin sucrose peptone medium and Angus medium respectively, followed by 59% and 58% viability in strains stabilized by skimmed milk, lactalbumin, sucrose medium and skimmed milk peptone sucrose medium respectively.