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The purpose of the study was to estimate the influence of temperature increase on Hsp70 induction in M. haemolytica serovar 1 strains. Three wildtype M. haemolytica strains, obtained from calves respiratory tracts and incubated at a temp of 41.5°C for 2 hours were used as the research material. Analyses of particular fractions were carried out by SDS-PAGE electrophoresis and identification of obtained...
The purpose of the study was estimating the viability and susceptibility effect of leukocytes isolated from cattle before and after the transportation in vitro on M. haemolytica leukotoxin (Lkt) cytotoxicity. 40 Simentaler heifers that were transported by truck a distance of 1700 km for 72 hours were used in the experiment. The material for the study was the blood (40 samples) collected on heparin...
Mannheimia haemolytica leukotoxin (Lkt) is the major factor that contributes to lung injury in bovine pneumonic pasteurellosis. Supernatant preparations containing Lkt produced by M. haemolytica serotype 1, grown in RPMI 1640 medium supplemented with BSA or FBS and without supplements were evaluated during this study. Analysis of obtained Lkt showed presence of 105kDa antigen (SDS-PAGE electrophoresis)...
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