Detection of Causative Agents of Bacterial Fish Septicaemia on Tilapia and Clarias in Khartoum State

Abstract

The aim of this study to detected to causative agent of bacterial fish septicaemia (Aeromonaas sp and Pseudomonas sp) and their prevalence in three seasons of years (winter,summer and autamn). Atotal of 35 fish samples (19 Oreochromis niloticus and 16 clarias sp), the samples were taken from gills, skin, intestine, liver, stomach and kidney, collected from Jabal Awalia dam and Elshagera location (river Nile) and fish farm from Elshagera fish research center in the period December 2012 to June 2013. The experiment was conduct in the institute of Veterinary Research Center, Bacteriology Divition, Suba ,Khartoum State. Different methods of isolation of bacteria were used included conventional test and API 20NE kits. The result obtained revealed that there were highly significant different between seasons of the year (p < 0.01) and different organs( p < 0.01) and significant different between Oreochromis niloticus and Clarias sp (p < 0.05 > 0.01) in the abundance of Aeromonas spp. The result also viewed Pseudomonas spp was not detected in all samples investigated in tow species in all seasons through this study.