studies on common bacterial pathogens causing mortality and low productivity of oreochromis niloticus

The main objective of the present study was to isolate and identify the most common bacterial causes of mortalities and low productivity among cultured fish and assessed the value of using multiplex PCR in rapid detection of bacterial fish pathogens. ThisThe results of this study could be summarized as follows:1- Naturally infected O. niloticus showed that the most common clinical signs noticed due to bacterial pathogens infections were decrease of feed intake, swam near the surface of water, increased mucus secretion and congested gills. Hemorrhages at the bas