A5073205584- Aquaculture Nutrition and Growth
- Aquaculture disease management and microbiota
- Fish Biology and Ecology Studies
- Identification and Quantification in Food
- Reproductive biology and impacts on aquatic species
- Aquatic life and conservation
- Algal biology and biofuel production
- Meat and Animal Product Quality
- Animal Nutrition and Physiology
- Nanoparticles: synthesis and applications
- Aquatic Ecosystems and Biodiversity
- Milk Quality and Mastitis in Dairy Cows
- Magnetic and Electromagnetic Effects
- Marine and Coastal Ecosystems
- Genetic diversity and population structure
- Moringa oleifera research and applications
- Food Industry and Aquatic Biology
- Rabbits: Nutrition, Reproduction, Health
- Vitamin K Research Studies
- Horticultural and Viticultural Research
- Biological Research and Disease Studies
- Garlic and Onion Studies
- Saffron Plant Research Studies
- Date Palm Research Studies
- Environmental and Biological Research in Conflict Zones
Al-Azhar University
2016-2024
Mansoura University
2000-2015
This work investigated the molecular identification and potential application of cyanobacterial strain Desertifilum tharense NIOF17/006 as a novel aquafeed additive for whiteleg shrimp ( Litopenaeus vannamei ) postlarvae (PLs). Morphological characterization confirmed isolate D. , with 16S rRNA sequence analysis showing high similarity (98.01%–98.53%) to known strains . Biochemical revealed that contains 37.74% protein, 5.52% lipid, 21.25% carbohydrate, on dry weight basis. An 8-week feeding...
Aeromonas hydrophila infection is one of the major diseases that cause inflammation and immunodepression in aquatic animals. Likewise, waterborne toxins are known for their negative impact on immunity antioxidant responses organisms. In this study, Lactobacillus plantarum (LP20) was incorporated Nile tilapia, Oreochromis niloticus , diets (50 mg/kg) to investigate its role capacity, immunity, anti-inflammation induced by deltamethrin (DLM) toxicity (96-h LC 50 14.9 μg/L) A. (LD 2 × 10 8...
Silver nanoparticles (AgNP) are one of the most synthesised nanomaterials due to their widespread applications, which in turn increases potential release and accumulation nature. Moreover, they known as antibacterial recommended be used different commercial drugs. However, evaluation effect on living organisms, especially fish, at low levels is still not completely understood. Therefore, present study was conducted investigate effects aqueous exposure AgNPs growth performance, oxidative...
The current study aimed to assess the influence of dietary inclusion cyanobacterium Arthrospira platensis NIOF17/003 as a dry material and free-lipid biomass (FL) on growth performance, body composition, redox status, immune responses, gene expression whiteleg shrimp, Litopenaeus vannamei postlarvae. L . were fed five different supplemented diets; first group was an un-supplemented diet negative control (C-N), second commercial with 2% A complete positive (C-P 20 ), whereas, three remaining...
This work evaluated the effects of dietary supplementation with seaweed, Pterocladia capillacea , nanoparticles (SN) on growth, whole-body composition, digestive enzyme activities, feed efficiency, immunological response, antioxidant activity, and gene expression whiteleg shrimp, Litopenaeus vannamei . The SN form was conducted using a Planetary Ball Mill PM 400. particle size verified through Dynamic Light Scattering (DLS) analysis. DLS showed that mean sizes were between 151 nm (13.6%) 835...
Seaweed liquid extracts are an attractive source of phytochemicals with high potential applicability in the aquafeed-additive industry. A commercial seaweed extract (True Algae Max, TAM®), which has a marine odor, also dislplays significant levels polysaccharides, phytochemicals, phenolic, and flavonoid compounds showing antioxidant activities DPPH inhibition. This study investigates impact diets supplemented TAM® as functional additive on growth, nutrient utilization, immune responses,...
Abstract The current investigation was carried out to determine the impacts of different levels vitamin K (VK) on growth performance, hematological parameters, and immunological response all-male juveniles Nile tilapia ( O. niloticus ). VK3 (menadione) added in five concentrations (0.0, 2.0, 4.0, 8.0, 12.0 mg kg –1 diet) isonitrogenous (30% cp), isocaloric (18.61 MJ ) diets. fish were fed diets at a daily rate 3% their live weight, divided into 3 meals for 60 days. results implied that...
The present study aimed to investigate the effect of dietary graded levels Aqua Superzyme, Garlen Allicin, and Diamond V (Original XPC) on growth performance economic production Nile tilapia fish (10 g initial bodyweight) for 16 weeks in indoor feeding experiment.The obtained results revealed that best treatment was probiotic V-Original XPC at 0.5 % diet which responsible significantly (P ≤ 0.05) final bodyweight, total bodyweight gain, relative rate, specific survival condition factor...
Cultivated mullet fish were compared with the wild from four locations during summer and winter 200582006. This work was evaluated via examination of three pathogenic microbial genera (Saimonella. Shigella 8. E. coflr) in samples rearing water. aquafeed. sediments fish. From results. it could be concluded that there is a pollution bacteria (specially coir) all feeds. water tested (mainly season). Also. no difference between natural resources those aquaculture concerning bacterial...
The present study aimed to investigate the effect of dietary graded levels Aqua Superzyme, Garlen Allicin, and Diamond V (Original XPC) on feed utilization by Nile tilapia fish for 16 weeks.Dietary inclusion tested pre-and probiotics improved significantly (P≤0.05)all criteria measured including parameters, digestibility, energy retention.The (P≤0.05)best results were calculated treatments Superzyme at 0.01%, Allicin V-Original XPC 0.5% diet.Yet, comparison among additives their shows that...
This study was designed to investigate the effect of Creatine (Cr) and Guanidinoacetic acid (GAA) as feed additives on growth performance, utilization body composition sex reversed (male) Nile tilapia (Oreochromis niloticus) fingerlings. play an important role in metabolism can be applied aquaculture for improving carcass aquatic animals.Nile (10.4±0.4 g / fish) were fed a commercial diet (30% crude proteinand gross energy 4120.7 Kcal/kg.) supplemented with different Cr GAA (0.8 and1.2g kg...
Macrobenthic and meiobenthic invertebrates' samples were collected seasonally during 2010 from five stations in Ashtoum El Gamil protected area which located the north western part of Lake Manzalah.Macrobenthic community was found including fifteen species belonging to three groups.Of these, 11 Mollusca, 2 Arthropoda Annelida.Some them have a freshwater origin others marine origin.Mollusca has been ranked first position, constituting about 68.5 % total population density (P.D.) macrobenthic...
The experiment of this study was carried out for 6 months on rearing Nile tilapia and silver carp, whether under monoculture or polyculture at different stocking densities.Four floating net cages (10 x 10 3 m) were used.The obtained results revealed that the best treatment all males mono-sex (10000 fish 10-g each/cage) followed by (5000 plus 750 carp 70-g/cage) concerning their superiority in final bodyweight (235 545-g/fish), gain (225 475-g/fish), average daily (1.21 2.55-g), specific...
This study was carried out at El-Manzala Lake, Dakahlia Governorate, Egypt in order to investigate the effect of substitution fish meal (FM) by graded levels distillers dried grains with solubles (DDGS, being 25.0, 50.0, 75.0 and 100%) diets on performanceof Nile tilapia (Oreochromisniloticus, initial body weight 27.072 g/fish) reared five floating net cages (12m×24m×3m) representing dietary treatments stocked into experimental a rate 35 fish/m3 (about 30.000 fish/cage). All groups were fed...
This study aimed to evaluate the effect of fish treatment with ethylene diamine tetra acetic acid (EDTA) and/or cooking methods on Pb content in flesh.Therefore, samples mullet (Mugil cephalus) from Mediterranean sea, lake Al-Manzalah and farms as well tilapia (Oreochromis niloticus) River Nile Damietta governorate were bought local market.Each species according its sampling location was divided into four sections for EDTA solutions by soaking half an hour, then typed following: first...
Out of the present study, it can be concluded that Trichoderma viride is a promising biocontrol agent for fish pathogens, Saprolegnia sp. and Aspergillus ochraceus.It easily cultured its inoculum survive in water significantly reduce saprolegniasis severity on Nile tilapia fish.The fungus T. safe also used biological control purposes against plant pathogens.It Alternaria eichhorniae (Ae5) which did not cause any mortality to treated safely hyacinth with no negative effects fish.
Objective: The present study was designed to investigate the effect of magnetic water treatment technique and different feeding rates on growth performance, feed utilization, quality parameters, chemical composition intestinal histomorphometric parameters monosex Nile tilapia (Oreochromis niloticus).Design: Experimental with a factorial design.Fish: A total 2880 apparently healthy (O.niloticus) an average initial body weight 69.86 ± 0.8 g were randomly distributed into 18 concreate...
In a 14-week study on Nile tilapia fingerlings, graded levels (0, 5, 10 and 20 g/Kg ration) of dried live yeast (DLY) lacto-sacc (LS) separately combined (at 1:1 rate) were added to the diets that daily offered at 2 or 3% fish biomass.The combination feed additive (DLY + LS) led significant positive effects weight, total length, relative growth rate, condition factor, conversion, nutrients utilization.The highest level dietary additives (20 g/Kg) was best for improving body weight...