Browsing by Author "Mesalhy, S."
Now showing items 1-20 of 22
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Characterization of some bacteria isolated from Oreochromis niloticus and their potential use as probiotics
(2008)Type: Journal ArticleA total of one thousand Oreochromis niloticus held in earthen ponds of the WorldFish Center were used in this study. Forty of these were randomly collected from the ponds and subjected to bacteriological and pathological ... -
Control of microcystis aeruginosa using tannic acid
(2006)Type: Journal ArticleOne 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 ... -
Echinacea as immunostimulatory agent in Nile tilapia (Oreochromis niloticus) via earthen pond experiment
(2008)Type: Conference PaperThe 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 ... -
Effect of dietary supplementation of inulin and vitamin C on the growth, hematology, innate immunity, and resistance of Nile tilapia (Oreochromis niloticus)
(2010)Type: Journal ArticleThe aim of the current study was to evaluate the in vivo potential effect of inulin (5 g kg-1) and Ascorbic acid (500 mg kg-1) on improving the performance as well as the immunity of Nile tilapia (Oreochromis niloticus). ... -
Effect Of Different Prepared Antigens Of Pseudomonas fluorescens On Specific And Non-Specific Immune Response Of Nile tilapia (Oreochromis niloticus)
(2013)Type: Journal ArticleThe current work aimed to study four different prepared Ps. fluorescensantigens (formalin killed bacterin, extracellular product (ECP) suspension, sonicated cells (SC) suspension and mixture of ECP and SC suspension) to ... -
Effect of Echinacea on body gain, survival and some hematological and immunological parameters of Oreochrmis niloticus and their response to challenge infection
(2007)Type: Journal ArticleSix 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 ... -
Effect of garlic and yeast in the culture of Nile tilapia (Oreochromis niloticus)
(2009)Type: Journal ArticleThe present study aimed to investigate the effect of both garlic and yeast (Saccharomyces cervecesa) on survival and growth performance of cultured Nile tilapia (Oreochromus niloticus), besides studying its immune stimulatory ... -
Effect of garlic on the survival, growth, resistance and quality of Oreochromis niloticus
(2008)Type: Conference PaperStudy was conducted to evaluate the efficiency of the garlic in improving the immune response, survival, growth and disease resistance in Nile tilapia <i>(O. niloticus)</i>. The effects on quality and shelf life of fish ... -
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
(2008)Type: Journal ArticleThree 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 probiotics on the survival, growth and challenge infection in Tilapia nilotica (Oreochromis niloticus)
(2008)Type: Journal ArticleThis 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 ... -
Effect of some immunostimulants as feed additives on the survival and growth performance of Nile tilapia, Oreochromis niloticus and their response to artificial infection
(2007)Type: Journal ArticleFour plant based immunostimulants (Echinacea purpurea 0.25 and 1.0 ppt, Allium sativum 3 %, Nigella sativa 3% and Origanum marjorana 2 and 3% and mixture of Allium sativum , Nigella sativa 3:1, 1:3 and 3:3%, respectively ... -
Effect of some local immunostimulants on the survival, growth performance and challenge infection of Oreochromis niloticus
(2006)Type: Conference PaperDisease 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 ... -
Effect of water hyacinth and chlorella on water polluted by heavy metals and the biochemical and pathophysiological response of exposed fish
(2008)Type: Conference PaperThis study aimed to investigate the capacity of selected aquatic plant (water hyacinth and Chlorella) to remove some metal pollution from the water and the effect of such reaction on the serum bichemistry and histopathology ... -
Field studies on prevention and biological control of the cyanobacterial blooms using Chlorella and Scenedesmus in the Nile tilapia farms
(2008)Type: Journal ArticleThis study aimed to investigate the use of green algae Chlorella elliposoidea (Gerneck) + Scenedesmus bijuga (Turpin) Lageh as prevention and biological control treatment of cyanobacterial blooms as field application. -
Impact of Saturn herbicide on histological structures and residual aspects of Nile tilapia (Oreachromis niloticus)
(2008)Type: Journal ArticleThis 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 ... -
Influence of phenol pollution on Nile tilapia (Oreochromis niloticus)
(2007)Type: ReportIn 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 ... -
Laboratory studies for preventing the growth of Microcystis sp. using Chlorella and Sendessmus in the Nile tilapia culture
(2006)Type: Conference PaperThis study is a trial for the prevention of Microcystis sp. growth using Chlorella and Scenedesmus mass culture via indoor experiment. -
Photobacteriosis in some wild and cultured freshwater fishes in Egypt
(2008)Type: Conference PaperTwo hundred and seventy wild and cultured fishes were collected from Alexandria, and investigated for the isolation of Photobacterium. The recovered bacteria were studied for the virulence, pathogenicity and antimicrobial ... -
Probiotics and aquaculture
(2009)Type: Journal ArticleAquaculture has become the fastest growing sector of food production in the world. Despite the encouraging trends, several constraints have a negative impact on the growth of aquaculture. Among those, diseases are the ... -
Reproductive and patho-physiological responses of blue tilapia (Oreochromis aureus) exposed to chromium with or without chelating substances
(2006)Type: Journal ArticleWater 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 ...
