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Now showing items 11-20 of 22
Influence of phenol pollution on Nile tilapia (Oreochromis niloticus)
Type: Report
In this study a field investigation was done by collection of water and Nile tilapia (Oreochromis niloticus) from Helwan (branch of Nile River), El- Abbassa earthen ponds and Bahr El-Baqar fish ponds every 4 months during ...
Effect of probiotics on the survival, growth and challenge infection in Tilapia nilotica (Oreochromis niloticus)
Type: Journal Article
This study was conducted in order to evaluate the potential benefit of Bacillus pumilus and a commercial product (‘Organic Green’<sup>TM</sup>) as a probiotic in the culture of the tilapia nilotica. Two doses of B. pumilus ...
Impact of Saturn herbicide on histological structures and residual aspects of Nile tilapia (Oreachromis niloticus)
Type: Journal Article
This investigation was performed to demonstrate the effect of Saturn herbicide on Nile tilapia (Oreachromis niloticus). Experimental studies were done to determine of LC50 of Saturn and evaluate its acute and chronic ...
The role of ornamental goldfish Carassius auratus in transfer of some viruses and ectoparasites to cultured fish in Egypt: comparative ultra-pathological studies
Type: Journal Article
Goldfish, common carp and Nile tilapia were sampled between September 2002 and May 2003 to investigate lesions induced by viral diseases and ectoparasites. Goldfish exhibited neoplasms, Dermocystidium sp., Ichthyophthirius ...
Control of microcystis aeruginosa using tannic acid
Type: Journal Article
One of the most difficult challenges facing the commercial fish producers is how to keep the constant balance that required maintaining a stable relationship among the water, fish and microscopic flora and fauna in their ...
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 ...
Effect of garlic, black seed and Biogen as immunostimulants on the growth and survival of Nile tilapia, Oreochromis niloticus (Teleostei: Cichlidae), and their response to artificial infection with Pseudomonas fluorescens
Type: Journal Article
Three dosage levels of black seed, garlic and commercial Biogen were administered for three months in summer and six months in winter to test their stimulation effect on growth, survival and response to challenge infection ...
Effect of Echinacea on body gain, survival and some hematological and immunological parameters of Oreochrmis niloticus and their response to challenge infection
Type: Journal Article
Six hundred and forty O. niloticus were equally distributed in 16 hapas (each of 1.5 m3) to be used for 4 treatments in 4 replicates. Fish of groups 1-3 were fed on basal diet mixed with Echnicacea (0.25 ppt) for 1 st, 2 ...
Echinacea as immunostimulatory agent in Nile tilapia (Oreochromis niloticus) via earthen pond experiment
Type: Conference Paper
The study aimed to investigate the effect of Echinacea on survival and growth rates of Nile tilapia (Oreochromis niloticus), its immunostimulatory and disease control effects via changes in various hematological and ...