Browsing Sustainable aquaculture by Author "El Naggar, G."
Now showing items 1-5 of 5
-
Efficiency of African catfish Clarias gariepinus in controlling unwanted reproduction of Nile tilapia Oreochromis niloticus in low input production system
(2007)Type: Journal ArticleThe present experiment was conducted in twelve earthen ponds 2100-m2 at WorldFish Center research facility at Abbassa, Egypt, to assess the efficiency of African catfish (Clarias gariepinus) in controlling unwanted Nile ... -
Exploring the trophic structure in organically fertilized and feed-driven tilapia culture environments using multivariate analyses
(2006)Type: Journal ArticleReports of similar yields in manure and feed-driven tilapia culture environments raise questions on food utilization in these environments. The possibility that similar production rates are because of utilization of different ... -
Rhizons improved estimation of nutrient losses because of seepage in aquaculture ponds
(2005)Type: Journal ArticleSeepage represents one of the largest water losses in static ponds accounting for about 30-70% of total pond water losses. This short communication describes a novel method in which a similar principle as in Masuda and ... -
Roles of ponds in integrated agriculture-aquaculture systems
(2007)Type: Book ChapterThe effects of adding an aquaculture pond to existing farming operations on nutrient use efficiency and productivity were explored. Ponds can be used to cycle nutrients from agricultural by-products such as manures and ... -
Total replacement of fishmeal with soybean meal in diets for Nile tilapia in pre-fertilized ponds
(2008)Type: Conference PaperThis study was conducted to investigate the effect of replacing fishmeal with soybean meal in diets with different levels of dietary protein on the production economics of Nile tilapia. The results demonstrate that soybean ...
