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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 ...
Estimation of Some Chemical Parameters of River Nile Sediments Exposed to Fish Cages
Type: Journal Article
The aim of this study was to assess the environmental impact of cage farm for ongrowing fish (Oreochromis niloticus) on the river sediments beneath and adjacent to the cages in El-Bostan region, Damietta Governorate by ...
Biological control of the cyanobacterium Microcystis aeruginosa using Chlorella and Scenedesmus mass culture
Type: Conference Paper
This study aimed to investigate the use of Chlorophyta Chlorella elliposoides and Scenedesmus bijuga (Turpin) Lageh as a biological control means against Microcystis aeruginosa Kutz as a laboratory trial before field application.
Effect of some local immunostimulants on the survival, growth performance and challenge infection of Oreochromis niloticus
Type: Conference Paper
Disease outbreaks are encountered in the rapidly developing aquaculture industry and affecting the economy but their controls seem to be difficult. Therefore, the use of immunostimulants may be an effective mean of increasing ...
Baseline biochemical and genetic profiles of four fishes from the River Nile
Type: Journal Article
Six enzyme systems coding for 10 loci and 6 proteins were examined in the blood of Polypterus senegalus, Clarias lazera, Tilapia nilotica and Protopterus annectens, using electrophoresis. Six loci were polymorphic in all ...
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 ...
Laboratory studies for preventing the growth of Microcystis sp. using Chlorella and Sendessmus in the Nile tilapia culture
Type: Conference Paper
This study is a trial for the prevention of Microcystis sp. growth using Chlorella and Scenedesmus mass culture via indoor experiment.
Reproductive and patho-physiological responses of blue tilapia (Oreochromis aureus) exposed to chromium with or without chelating substances
Type: Journal Article
Water pollution with chromium included significant negative impact in the hematological and biochemical parameters together with marked histopathological alteration and lowering reproductive performance of fish. The addition ...
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 ...