Abstract
In view of the important biological role of histamine on vascular permeability and a few data of this autacoid in teleost fish, this study proposes to evaluate the role of histamine in the acute inflammatory response in Nile Tilapia challenged with an inoculum of Aeromonas hydrophila, submitted or not to treatment parenteral with antihistamine H1 promethazine receptors by: analysis in thi…