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The purification, characterisation and lethal effect of an extracellular protease present in the extracellular products (ECPs) of a pathogenic Vibrio pelagius (7P) strain are described. The extracellular protease was purified by size-exclusion high-performance liquid chromatography and characterised by enzymatic assays. The lethal effect was evaluated by injection into fish. The native protease had...
Twenty-five gilts without measurable porcine reproductive and respiratory syndrome (PRRS) virus (PRRSV) serum antibody titres were used for this experiment. All of them were randomly assigned to one of the treatment groups at the time of artificial insemination. Twelve gilts were exposed to PRRSV, of these, six were slaughtered on day 10 after exposure and constituted group A. The remaining six...
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