Effect of three pathogenic Vibrios on the blood biochemical parameters of Pseudosciaena crocea

Vibrio alginolyticus,V.harveyi and V. parahaemolyticus are main causes of ulcer disease for Pseudosciaena crocea.In this research,we set three experimental treatments of P.crocea which were injected with 0.2ml V.harveyi,V.alginolyticus or V.parahaemolyticus,respectively,while injection of normal saline at the same dose was given to the control.To study the impact of the three pathogenic Vibrios on the P.crocea's blood biochemical parameters,contents of carbohydrate,lipid,protein,electrolyte and protein metabolism products and enzyme activity in serum were determined and compared by sampling at different time-point for 20d after infection.The results showed that the change of blood biochemical parameters occurred mainly in 1 pound sterling d after the Vibrio injection.Contents of TP,ALB,GLOB,ALT,AST,LDH,K,and Fe increased significantly(P