A5034967872- Aquaculture disease management and microbiota
- Vibrio bacteria research studies
- Identification and Quantification in Food
- Parasite Biology and Host Interactions
- Aquaculture Nutrition and Growth
- Parasites and Host Interactions
- Environmental Toxicology and Ecotoxicology
- Pharmaceutical and Antibiotic Environmental Impacts
- Helminth infection and control
- Fish Biology and Ecology Studies
- Animal Nutrition and Physiology
- Selenium in Biological Systems
- Water Quality and Pollution Assessment
- Heavy metals in environment
- Heavy Metal Exposure and Toxicity
- Myxozoan Parasites in Aquatic Species
- Analytical chemistry methods development
- Bacterial biofilms and quorum sensing
- Thallium and Germanium Studies
- Bacillus and Francisella bacterial research
- Water Treatment and Disinfection
- Fish Ecology and Management Studies
- Physiological and biochemical adaptations
- Digital Imaging for Blood Diseases
- Aquatic Ecosystems and Biodiversity
Cairo University
2017-2024
Bacillus cereus is a common food poisoning pathogen in humans. This study aimed to investigate the prevalence, molecular typing, antibiogram profile, pathogenicity, dissemination of virulence and antibiotic resistance genes associated with natural B. infection among Mugil seheli.Consequently, 120 M. seheli (40 healthy 80 diseased) were obtained from private fish farms Port-said Governorate, Egypt. Afterward, samples processed for clinical, post-mortem, bacteriological examinations. The...
Abstract In the present study, Aeromonas hydrophila was isolated from Tilapia zillii and Mugil cephalus samples collected during different seasons various Suez Canal areas in Egypt. The prevalence of A. , virulence genes, antibiotic resistance profile isolates to commonly used antibiotics aquaculture were investigated identify multiple drug (MDR) extensive drug-resistant (XDR) strains. addition, a pathogenicity test conducted using which selected based on morbidity natural infected fish....
Abstract Due to limited data on the pathogenicity of Prohemistomum vivax ( P. ) and its impacts fish health, this study aimed determine morphological, molecular characteristics, pathogenicity, histopathological alterations in infected with . Eight hundred (800) Nile tilapia Oreochromis niloticus were collected from various farms Kafr El Sheikh Governorate. The examined for encysted metacercariae (EMC) different organs. Tissue specimens underwent analysis, expression stress-related genes,...
Vibriosis is a globally threatening bacterial disease affecting mariculture with high mortalities and severe economic losses. Isolation Identification of different vibrio species were performed to total number one hundred moribund freshly dead Solea aegyptiaca, Epinephelus marginatus Mugil cephalus collected from Lake Qarun Gulf Suez. Phenotypic picture molecular identification based on use 16SrRNA gene sequence confirmed 44 strains as species. Further retrieved spp. using specific primers...
Abstract Background In recent years, anthropogenic activities have released heavy metals and polluted the aquatic environment. This study investigated ability of silica-stabilized magnetite (Si-M) nanocomposite materials to dispose lead nitrate (Pb(NO 3 ) 2 toxicity in Nile tilapia African catfish. Results Preliminary tests were conducted determined median lethal concentration (LC 50 catfish be 5 mg/l. The sublethal concentration, equivalent 1/20 96-hour LC Pb(NO , was selected for our...
The present study aimed to evaluate the effect of dietary fermented extracts sourced from Saccharomyces cerevisiae (nucleotides, β-glucans and MOS) (Hilyses®) on production health Nile tilapia (Oreochromis niloticus) broodstock, as well seed survival performance. trial was performed in a hatchery along spawning season continued laboratory monitor performance fry fingerlings. broodstock were divided into two groups, (C) fed basal diet (H) 0.4% Hilyses. Blood histological parameters,...
IGENETIC trematode infections pose a significant threat to the African catfish aquaculture industry in Egypt.This study investigated prevalence, morphological characteristics, molecular composition, and host responses Prohemistomum vivax encysted metacercariae (EMC) infecting farmed (Clarias gariepinus).A total of 160 fish were collected from farms Kafr-elsheikh Governorate between 2022 2023.Parasitological examination revealed an overall prevalence 55% (n = 88) infection with EMC P....
A feeding trial was performed to evaluate the efficacy of Dietary Nucleotides (Nucleoforce™) on Growth performance, haematological, biochemical, Immunological indices and disease resistance Pangasianodon hypophthalmus fish Pseudomonas aeruginosa. nucleotides were incorporated in diet at different concentrations; group I control, II 250 g/ ton III 500 for 8 weeks. At end trial, weight gain, specific growth rate (SGR) recorded. Results showed that there a significant increase groups received...
We studied the ectoparasite, Ergasilus extensus or gill lice in gills from farmed grey mullet, Mugil cephalus. Streptococcus agalactiae and Enterococcus faecalis were also isolated infected fish. identified these pathogens using 16S rRNA gene sequencing. Our analyses revealed high homology percentages with identical sequences GenBank. Moreover, phylogenetic tree analysis confirmed S. E. other close related pathogens. used quantitative real-time polymerase chain reaction (qRT-PCR) to...
Aeromonas salmonicida was isolated for the first time from Mugil carinatus fish sampled Suez Gulf, governorate, Egypt. Fish samples were identified bacteriologically, molecularly and histopathologically. Biochemical identification of A. performed using API 20 NE kits. The universal 16 S rRNA gene species used molecular retrieved isolates by producing amplicons at 461 bp. Serine protease (ser) aerolysin-like protein (act) virulent genes detected in 211 bp 232 bp, respectively. DNA sequence...
from the Mekong River in Vietnam (Rodríguez et al., 2018).Panga has several names as sutchi catfish, striped iridescent shark-catfish, or tra fish, it high acceptability by consumers due to its low price, good taste and white meat that can replace cod other expensive fishes (Little 2012 ; Guimarães 2016).Recently, Pangasius become one of best aquaculture candidates countries be cultured easily ponds, concrete tanks fish cages, ability survive at stocking density, poor water quality, oxygen...
The current study investigated the influence of adverse water quality parameters in different localities (Qarun Lake, Fayoum Province, Egypt; Mariotteya stream, Giza Governorate, and Mediterranean coastal water, Alexandria Egypt) on fish species during winter.Water samples were collected to evaluate physicochemical properties heavy metal distribution water.Furthermore, bacteriological analysis was performed.The characteristics revealed high conductivity, alkalinity, higher values hardness...