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Effect of the filter-feeder silver carp on the water quality of fertilized earthen ponds and Nile tilapia production
Type: Journal Article
The objective of this study is to test the effect of silver carp on water quality and tilapia yield.
Water quality, fish production and economics of Nile Tilapia, Oreochromis niloticus, and African catfish, Clarias gariepinus, monoculture and polyculture
Type: Journal Article
Tilapia is the main cultured fish species in Egypt, contributing 43.5% of farmed fish production and 24% of total fisheries production. The main problem facing tilapia producers is early reproduction before fish reach ...
Assessment of the impact of dissemination of genetically improved Abbassa Nile tilapia strain (GIANT-G9) versus commercial strains in some Egyptian governorates
Type: Journal Article
WorldFish 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 ...
A comparison of the fixed input and water quality analysis methods for optimizing fertilization requirements, minimizing costs and increasing fish production in polyculture ponds
Type: Journal Article
This 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
Type: Journal Article
This 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 ...
Effects of two nitrogen fertilizers on water quality and hybrid tilapia performance in fish farms
Type: Journal Article
The 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 ...