A5013511086- Microbial infections and disease research
- Aquaculture disease management and microbiota
- Animal Diversity and Health Studies
- Salmonella and Campylobacter epidemiology
- Bacteriophages and microbial interactions
- Identification and Quantification in Food
- Moringa oleifera research and applications
- Antibiotic Resistance in Bacteria
- Animal Nutrition and Physiology
- Probiotics and Fermented Foods
- Animal Virus Infections Studies
- Escherichia coli research studies
- Animal health and immunology
- Aquaculture Nutrition and Growth
- Bacterial biofilms and quorum sensing
- Milk Quality and Mastitis in Dairy Cows
- Genetic and phenotypic traits in livestock
- Brucella: diagnosis, epidemiology, treatment
- Effects of Environmental Stressors on Livestock
- Vibrio bacteria research studies
- Mycobacterium research and diagnosis
- Tuberculosis Research and Epidemiology
- Liver physiology and pathology
- Antimicrobial Resistance in Staphylococcus
- Garlic and Onion Studies
Egypt Nanotechnology Center
2019-2024
Delta University for Science and Technology
2023-2024
Al Baha University
2023-2024
Alexandria University
2022
Zagazig University
2020-2021
Beni-Suef University
2019-2020
Agricultural Genetic Engineering Research Institute
2020
Methicillin-resistant Staphylococcus aureus (MRSA) is a major pathogen associated with severe morbidity and mortality poses significant threat to public health worldwide. The genetic diversity based on sequence types of MRSA strains was illustrated in previous studies; meanwhile, the along predominant type, especially Egypt, remains unknown. purpose current study determine clone ST239-MRSA (n = 50) isolated from different hosts clinical samples illustrate correlation between resistance...
Necrotic enteritis (NE) caused by Clostridium perfringens (C. perfringens) results in impaired bird growth performance and increased production costs. Nanotechnology application the poultry industry to control NE outbreaks is still not completely clarified. Therefore, efficacy of dietary garlic nano-hydrogel (G-NHG) on broilers performance, intestinal integrity, economic returns its potency alleviate C. levels using challenge model were addressed. A total 1200 male broiler chicks (Ross 308)...
Mastitis is a significant disease affecting dairy cattle farms in Egypt. The current study aimed to investigate the prevalence and major bacterial pathogens causing subclinical mastitis (SCM) three bovine herds, with history of SCM, at Governorates North Upper antimicrobial resistance profiles specific virulence-associated genes SCM were investigated. One thousand sixty-quarter milk samples (QMS) collected aseptically from 270 apparently healthy cows examined. total was 46% 44.8% based on...
The emergence of extensive drug-resistant (XDR) Salmonella in livestock animals especially poultry represents a serious public health and therapeutic challenge. Despite the wealth information available on resistance to various antimicrobials, there have been limited data genetic determinants XDR exhibiting co-resistance ciprofloxacin (CIP) tigecycline (TIG). This study aimed determine prevalence serotype diversity flocks contact workers elucidate involved CIP TIG. Herein, 115 enterica...
A major increase of bacterial resistance to colistin, a last-resort treatment for severe infections, was observed globally. Using colistin in livestock rearing is believed be the ground mobilized (mcr) gene circulation and crucial concern public health. This study aimed determine frequency virulence characteristics colistin-resistant Gram-negative bacteria from milk mastitic cows raw unpasteurized Egypt. One hundred seventeen strains belonging Enterobacteriaceae (n = 90), Pseudomonas...
Campylobacter jejuni is the leading cause of foodborne bacterial gastroenteritis in humans worldwide. Contaminated chickens and their products are main sources human campylobacteriosis. Therefore, this study aimed to detect genotypic virulence genes' profiles multi-drug resistant (MDR) C. isolates assess effects sub-inhibitory concentrations (SICs) eugenol beta-resorcylic acid on avian MDR isolates. These were clustered together with via enterobacterial repetitive intergenic consensus-PCR...
The current study was carried out to assess the effects of using Bacillus subtilis-fermented rice bran (FRB) on water quality parameters, microbial counts, growth performance, body composition, antioxidants/oxidants, and immunity biomarkers white leg shrimp (Litopenaeus vannamei) reared at different salinities. Shrimp juveniles (0.51 ± 0.11 g) were distributed in triplicates into 27 1-m3 fiberglass tanks (1,000 animals/m3/each) subjected bifactorial treatments (three feeding types FRB with...
Abstract Introduction Breast cancer (BC) cells often develop multiple mechanisms of chemo- and radio-resistance during tumor progression, which is the major reason for failure breast therapy. Targeted nanomedicines have tremendous therapeutic potential in BC treatment over their free drug counterparts. Searching radio-sensitizers to overcome such resistance therefore urgently required. The goal this study evaluate compare radio-sensitizer efficacy amygdalin -folic acid nanoparticles (Amy-F)...
Aim: The present study was designed to investigate the occurrence and distribution of Salmonella serotypes in chicken meat samples, explore susceptibility strains antimicrobials, as well their virulence-associated genes. Materials Methods: Two-hundred retail samples from different shops, 25 stool specimens shop workers, were included study. collected examined bacteriologically for presence salmonellae. isolates serotyped using a slide agglutination test O H antigens screened five virulence...
Mastitis remains a serious problem for dairy animals. The misappropriation of antimicrobial agents helps accelerate resistance, which poses challenge in controlling environmental S. uberis infection. Here, we study the virulence attributes, and biocide epidemiological typing recovered from bovine clinical mastitis farms diverse hygienic interventions Egypt. overall infection rate was 20.59%; all were multidrug-resistant (MDR). sua gene most frequent (42.02%), followed by pauA (40.57%), cfu...
To investigate the effects of dietary fumaric acid (FUA) on performance, carcasses, nutrient digestibility, blood metabolites, digestive enzymes, and cecal microbiota in Japanese quail chicks. Three hundred unsexed (1-wk-old) were randomly assigned to 5 groups. Supplementation FUA diet chicks exhibited a significant improvement growth performance through different experimental periods studied compared with those receiving unsupplemented one. The digestibility crude protein (CP) metabolizable...
Respiratory diseases inflicted by Mycoplasma gallisepticum (MG) and Ornithobacterium rhinotracheale (ORT) cause severe economic losses great burden to the poultry industry worldwide. Therefore, current study was planned assess efficacy of aivlosin alone or in combination with zinc oxide nanoparticles (ZnO-NPs) treatment experimental MG and/or ORT infections broilers. Moreover, we also aimed evaluate role ZnO-NPs on residues broiler tissues. A total 1,440 Cobb chicks were allocated into 6...
The purpose of this study was to discover how abundant toxigenic fungi and mycotoxins are in animal feedstuff samples. A total ninety samples representing various types were collected from sites Egypt. Isolation, identification, determination (aflatoxins B1, B2, G1, G2, ochratoxin A) performed. results revealed that 79 (87.77%) the contaminated with fungi, 1.1 × 105 CFU/g recovered, including 41 fungal species belonging 18 genera, such as Zygomycota, which represented by three (7.31%...
The high incidence of aflatoxins (AFs) in chocolates suggests the necessity to create a practical and cost-effective processing strategy for eliminating mycotoxins. present study aimed assess adsorption abilities activated charcoal (A. charcoal), yeast (Saccharomyces cerevisiae), probiotic Lactobacillus rhamnosus as AFs adsorbents three forms—sole, di- tri-mix—in phosphate-buffered saline (PBS) through an vitro approach, simulated mimic conditions gastrointestinal tract (GIT) based on pH,...
species cause diseases in animals and humans. The prevalence antimicrobial profiles of
Abstract Many dangerous bacteria have become highly resistant to traditional antibiotics, which is a huge public health concern. This study investigated the use of silver nanoparticles biosynthesized in culture filtrate Lactobacillus acidophilus as antimicrobials. UV–visual spectrophotometry, Fourier-transform-infrared spectroscopy, X-ray power diffraction, and scanning electron microscopy all validated findings. The ranged size from 33 90 nm. cytotoxicity nanosilver generated was then using...
Pasteurella (P.) multocida and Mannheimia (M.) haemolytica are the most two common pathogenic bacterial agents causing pneumonia in calves. Both bacteria associated with significant economic losses cattle industry due to high morbidity mortality rates, especially case of severe infections. The objectives present study were perform serotyping genotyping, as well characterization virulence-associated genes 48 isolates; 33 P. 15 M. haemolytica. All strains isolated from pneumonic calves showing...
Abstract Liver cirrhosis is a silent disease in humans and experimentally induced by many drugs toxins as thioacetamide (TAA) particular, which the typical model for experimental induction of hepatic fibrosis. Thus, objective present study was to elucidate possible protective effects lactéol® forte (LF) quercetin dihydrate (QD) against TAA‐induced damage male albino rats. Induction hepatotoxicity performed TAA injection (200 mg/kg I/P, twice/ week) LF (1 × 10 9 CFU/rat 5 times/week) QD (50...