Browsing WorldFish Community by Author "Ibrahim, N.A."
Now showing items 1-10 of 10
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Assessment of the impact of dissemination of genetically improved Abbassa Nile tilapia strain (GIANT-G9) versus commercial strains in some Egyptian governorates
(2019)Type: Journal ArticleWorldFish initiated a selective breeding program in Abbassa--Egypt to develop and produce the genetically improved Nile tilapia strain known as “Genetically Improved Abbassa Nile tilapia (GIANT)”, adopting the same technology ... -
Bio-economic evaluation of African Catfish (Clarias gariepinus) interaction with Nile Tilapia (Oreochromis niloticus) in low input system and its effect on water quality
(2010)Type: Journal ArticleThis study aims to determine the best stocking rate of African catfish (Clarias gariepinus) as a predator to control unwanted tilapia recruits in a bilyculture system and to assess the effects of that on fish growth, water ... -
A comparison of the fixed input and water quality analysis methods for optimizing fertilization requirements, minimizing costs and increasing fish production in polyculture ponds
(2010)Type: Journal ArticleThis study aims to find a proper fertilization method to optimize nutrient requirements and a proper fertilization strategy through determining the amount as well as the period of fertilizers addition, with an aim of ... -
Effect of freshwater toxic and non toxic cyanobacteria, (Microcystis aeruginosa) strains on some biochemical parameters of Oreochromis niloticus
(2013)Type: Journal ArticleThis study was planned to determine the grazing rate of O. niloticus from both toxic and non toxic strains of Microcystis aeruginosa with its effect on fish health through study of some clinical signs, hematological and ... -
Effect of gypsum treatment on water quality parameters and fish performance in fertilized polyculture earthen ponds
(2012)Type: Journal ArticleThis experiment aimed to study the effect of agriculture gypsum treatment in aquaculture ponds (to raise water total hardness) on the physico-chemical and biological parameters of pond water and fish performance in a ... -
Effect of nitrogen fertilizer source on water quality and performance of two tilapia species
(2006)Type: Journal ArticleThe 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 ... -
Effect of the filter-feeder silver carp on the water quality of fertilized earthen ponds and Nile tilapia production
(2013)Type: Journal ArticleThe objective of this study is to test the effect of silver carp on water quality and tilapia yield. -
Effects of two nitrogen fertilizers on water quality and hybrid tilapia performance in fish farms
(2010)Type: Journal ArticleThe purpose of the present study was to compare the effect of urea and ammonium nitrate as nitrogen fertilizer sources with mon superphosphate on water quality and the productive performance of hybrid tilapia fish in outdoor ... -
Estimation of Some Chemical Parameters of River Nile Sediments Exposed to Fish Cages
(2006)Type: Journal ArticleThe 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 ... -
Influence of fertilizers' types and stocking density on water quality and growth performance on Nile tilapia African catfish in polyculture system
(2008)Type: Conference PaperThe effects of fertilizer types and stocking density were investigated on water quality parameters that expected to affect growth performance of the polyculture of Nile tilapia <i> (Oreochromis niloticus) </i>, African ...
