Effect of salt stress on energy usage and growth in grass carp Ctenopharyngodon idella (Valenciennes, 1844) and common carp Cyprinus carpio L. juveniles

The present study was conducted on two species of cyprinid fish: Common Carp (Cyprinus carpio) and grass (Ctenopharyngodon idella). includes the effect increasing salinity survival rate, oxygen consumption, glucose total protein levels in blood plasma, energy usage, food consumption growth rate. carp show more resistance to with 90% rate 15 g/l salinity. While did not survive than 5 g/L. Increasing accompanied decreasing glucose, usage. Food intake also decrease which results for both fish species. This showed that salt stress negatively affect intake, usage