Intensive Cage Culture of Nile tilapia in River Nile Systems Canals in Egypt

Extensive Net Cage Culture of Nile Tilapia (Oreochromis niloticus) Fingerlings in Nutrient-enriched Pond

To investigate the potential of extensive net cage culture for Nile tilapia (Oreochromis niloticus) fingerlings, an experiment was conducted in net cages suspended in a fertilized pond. Mixed-sex population of Nile tilapia with an average initial body weight of 0.065 g was used to stock in experimental cages. Four treatments; non added-substrate without supplemental feeding (NSNF), non added-su...

Developing a Cell Culture System from Nile Tilapia (Oreochromis Niloticus, L.) Ovarian Tissue in Egypt

Cell culture from ovarian tissue of healthy female fingerlings Oreochromis niloticus was established with average weight of 20 to 30 gm/female. Three culture media were screened and tested: Leibowitz L-15), Minimum essential medium (MEM) and RPMI 1640 medium. Cells were maintained at 16, 27 or 30C for screening the favorable optimally incubation temperature. Culture medium was refreshed every 5...

Red Swamp Crayfish (procambarus Clarkii) in River Nile, Egypt

Culture of Mixed-sex Nile Tilapia with Predatory Snakehead

An experiment was conducted in eighteen 200-m2 fertilized earthen ponds at the Asian Institute of Technology, Thailand, from March through October 2000. This experiment was designed to assess the efficiency of snakehead (Channa striata) in controlling recruitment of mixed-sex Nile tilapia (Oreochromis niloticus) in ponds and to assess growth and production characteristics of Nile tilapia in mon...

Polychlorinated Biphenyls Water Pollution along the River Nile, Egypt.

Ten polychlorinated biphenyl (PCB) congeners were determined in water samples collected along the River Nile using gas chromatography-electron capture detector (GC-ECD). PCB concentrations ranged from 14 to 20 μg/L, which were higher than those reported in previous studies, indicating serious PCB pollution in the River Nile. PCB congener profiles varied depending on the sampling sties. PCB-138 ...