Abstract
The aim of this study is to evaluate the glucocorticoid effect of dexamethasone on acute inflammatory response of tilapia (Oerochromis niloticus), vaccinated and challenged with Flavobacterium columnare. For that will be used 96 tilapia, weighting about 150g each, distributed in 12 tanks wiht 100 L capacity, supplied with aired water, constituting four treatments: T1 = vaccinated and tre…