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Heavy metals concentrations in water and fish of some Egyptian lakes and fish ponds
Type: Journal Article
Five heavy metals namely, cadmium, copper, iron, lead, and zinc were determined in water and fish samples obtained from three different lakes and fishponds in Egypt over nine months to assess pollution with those toxic ...
Effect of nitrogen fertilizer source on water quality and performance of two tilapia species
Type: Journal Article
The purpose of the present study was to compare the effect of urea and calcium nitrate (c. nitrate) as nitrogen fertilizer sources with mono superphosphate (msp) on water quality and the performance of two species of tilapia ...
Estimates of phenotypic and genetic parameters for carcass traits in Nile Tilapia selected for fast growth in low-input conditions
Type: Other
Nile tilapia is sold as either un-gutted or gutted whole carcasses, or as depending on geographical location. In whichever state the is sold, meat yield is an important consideration. Although carcass traits are of economic ...
Pathological studies on encysted metacercariae infections among some freshwater fish in Egyptian aquaculture
Type: Conference Paper
Fish may harbor pathogens especially parasitic diseases which interfere with the aquaculture production and could consitiute a zoonotic importance, especially in developing countries. In this study, 200 freshwater fishes ...
Aquaculture genetics research in Egypt
Type: Conference Paper
Fish production in Egypt has significantly increased over the last few years reaching 546 000 t in 1998 compared to 306 000 t in 1988. The contribution of aquaculture in the overall fish production has increased as well ...
The role of fish ponds in the nutrient dynamics of mixed farming systems
Type: Thesis
The major objective of the study, is to explore the use of ponds as nutrient traps (besides fish production) to increase nutrient use efficiency in integrated farming systems. It focuses on (i) nutrient utilization efficiency ...
Selection for growth of Nile tilapia (Oreochromis niloticus L.) in low-input environments
Type: Thesis
This thesis is a part of Wageningen University’s Interdisciplinary Research and Education Fund project entitled “Optimization of nutrient dynamics and fish for integrated agriculture- aquaculture systems” (INREF-POND). The ...
Utilization of blue green algae (Anabena wisconsienense) as a feeding and biofertilization for Nile tilapia (Oreochromis niloticus) cultivated in rice fields
Type: Journal Article
This study has been carried out to investigate the growth performance and economic efficiency as well as pond productivity of Nile tilpia fingerlings cultured in rice fields as affected by dried blue green alga for nutrition ...