الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 85 |  |  |
| | | from | 85 | | |
Abstract
The present study was conducted to investigate the effect of lipid level and stocking densities on the growth performance and survival of fry (Oreochromisniloticus )cultured in hapa in pond. Fish with average initial weight 0.4 g ± 0.03 were stocked at three different rates 250, 300 and 350fry /m3corresponding to (2500, 3000 and 3500 fry /hapa , three replicate/treatment). At each density 3 lipid level (6, 8, and 10%).fish were hand-fed to satiation four times /day (7, 11, 2 and 5pm) throughout the experimental period 120 days.
The results showed that final body weight, weight gain, and specific growth rate (SGR) were positively affected by lipid level and inversely affected by stocking density, affected by their interaction and survival rate was significantly affected by stocking densities. The maximum growth was obtained with 8% CL at density (250 fry /m3) whereas the lowest growth was obtained in 10% CP at high density (350fry /m3). It could be concluded that the optimum density 250 fry /m3 and lipid level 8% in terms of growth performance, feed utilization and economical analysis under experimental conditions.