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2012, Comparative Clinical Pathology
Food Research International
Prevalence of Salmonella in chicken eggs collected from poultry farms and marketing channels and their antimicrobial resistance2010 •
An investigation was carried out to study the dynamics of Salmonella occurrence in chicken eggs during production at farm level and subsequently in marketing channels (both whole sale and retail markets) in north India and to select an effective antimicrobial agent for the control of Salmonella in poultry birds. A total of 560 chicken eggs comprising 260 from poultry farms and 300 from marketing channels were collected and screened for the presence of Salmonella during the period of April 2006 to July 2007. Twenty seven (4.82%) of the samples tested were found to be positive for Salmonella. Among the chicken eggs from poultry farms and marketing channels, 10 (3.84%) and 17 (5.5%) eggs were positive for Salmonella, respectively. Among the isolates, S. Typhimurium was the predominant serovar. Antibiogram testing revealed multi-drug resistance among Salmonella isolates from chicken eggs collected from poultry farms and marketing channels in north India. All the isolates were resistant to bacitracin, polymyxin-B and colistin, whereas sensitivity was recorded for ciprofloxacin, streptomycin and enrofloxacin.
Ankara Üniversitesi Veteriner Fakültesi Dergisi
Presence of Salmonella in retail grade a eggs determined by the International Organization for Standardization 6579 method and a LightCycler polymerase chain reaction system2015 •
American Journal of Pure and Applied Biosciences
Isolation, Identification and Antibiotic Sensitivity Pattern of Salmonella spp from Locally Isolated Egg Samples2019 •
Salmonella have been found to be the major food borne disease in the world with a serious public health problem. The presence of any serotype of Salmonella in food under that food unfit for human consumption. Poultry eggs are considered as major sources for these pathogenic microorganisms. The current study was carried out to isolate and identify the Salmonella spp from egg sample collected from different retailer markets and farm of Savar area, Bangladesh. Antibiotic susceptibility test was also done to determine the resistance pattern. A total of 50 poultry eggs were examined. Salmonella spp, were isolated by culturing on selective plate and characterized by biochemical tests. In the present study the average prevalence of Salmonella was found to be 100% from outer surface of eggs and 20% from eggs yolk. All identified isolates were tested for antibiotic susceptibility to six commonly used antimicrobials by disk diffusion technique. The highest percentage of resistance (60%) was found to Chloramphenicol, Ampicillin, Gentamicin and Tetracycline. Salmonella isolated from egg surface were found more antibiotic resistant than that of egg yolk. The present study suggests that poultry eggs are potential reservoir of antibiotic resistant Salmonella.
Poultry housing as well as egg storage conditions in Egypt along with relatively high ambient temperatures during summer seasons can pose a potential zoonotic risk for spreading infection through eggs and their products for consumers. In this study, the prevalence of Salmonella enteritidis (SE) antibodies in eggs yolk and detection of SE contamination in egg contents was surveyed by evaluating a sample of commercial eggs representing different housing systems and different market storage conditions in Ismailia city, Egypt. SE infections in some suspected human cases were monitored at the same locality. Sensitivity of the different isolates was tested against different antibiotics using standard technique. Duplex PCR amplification for detection of both Salmonella species and SE serotype were carried out to confirm bacteriological findings. Results revealed that the overall prevalence of SE positive antibody in eggs was 10/400 (2.5%). Samples collected from hens housed in batteries ha...
2012 •
World’s Veterinary Journal
Detection and Antimicrobial Susceptibility of Salmonella spp. Isolated From Commercial Eggs in Tiaret Province, AlgeriaSalmonellosis is a significant public health problem worldwide. The current study aimed to investigate the presence of Salmonella spp. in commercial eggs of Tiaret province, Algeria, and evaluate the susceptibility of isolated strains to different antimicrobial agents. A total of 180 commercial eggs collected from various retail outlets (groceries, butchers, wholesalers, street vendors) were analyzed by conventional methods, and 13 Salmonella spp. isolates were tested on a panel of 7 antimicrobial agents using the disc diffusion method. Of 180 chicken egg content samples examined, the findings indicated that 13 (7.22%) were positive for Salmonella spp. Regarding the collection site, 2 (1.11%), 4 (2.22%), and 7 (3.88%) of Salmonella spp. isolates were detected from butchers, wholesalers, and street vendors, respectively. Most antibiotic discs have demonstrated widespread resistance with an incidence rate of 100%, including amoxicillin + clavulanic acid, ampicillin, nalidixic acid, and erythromycin. However, colistin sulfate, gentamycin, and tetracycline were more effective against Salmonella isolates. It can be concluded that the highest detection rate of Salmonella spp. was observed for street vendors, and the highest resistance was recorded for commonly used antibiotics in poultry production.
Asian Food Science Journal
Isolation, Identification and Resistance of Salmonella spp. in Eggs for Human ConsumptionAim: The present investigation aims to construct a comparative analysis based on isolation, identification and observation of resistance of Salmonella spp. in eggs for human consumption. Study Design: This is an experimental study. Place and Duration of Study: The present study was conducted in the Microbiology laboratory of Department Microbiology, St. Xavier’s College (Autonomous), Kolkata (West Bengal, India), from January to March, 2020. Methodology: In this study, a total of 48 poultry (chicken) eggs from local and super markets (24 samples from each market) were examined to study the diversity of microorganisms in eggshell surface as well as in the internal contents with the specific objective to isolate Salmonella spp. and to study their resistance against a range of antibiotics- Cefotaxime (30 mcg), Levofloxacin (5 mcg), Aztreonam (30 mcg), Imipenem (10 mcg), Amikacin (30 mcg) and Ceftazidime (30 mcg). Results: Microscopic and biochemical observations revealed the presence ...
Background: Salmonella qualifies to be one of the major pathogens that cause food poisoning to human. Feco-oral transmission is the main ways it gets established in the gut and causes disorders related to salmonellosis. It is of public health concern and it is among the most guarded pathogen in the world in order to mitigate it is devastating impacts in public health. One of the ways salmonella is acquired is by consuming contaminated raw or undercooked eggs, foods and water. Salmonella happens to be transmitted through poultry products as salmonella transmission is through trans ovarian in poultry. It also affects the productivity of poultry farms by causing pulorum diseases in poultry. Since poultry production in Somalia is new and struggling, the country depends on exporting both poultry meat and egg. This imported products does not go through quality checks therefore this paper is set to establish the overall prevalence of salmonellosis in eggs and compare prevalence of salmonellosis in locally produced eggs and exported eggs. Materials and Methods: To determine the prevalence of salmonellosis in eggs in Banadir region, a cross sectional study was conducted between February 2019 to 2021 in Benedir region. Origin of imported eggs were purposively selected and tray sampling was simple random sampling, backyard poultry farms were also selected using simple random sampling. A total 400 egg samples were transported and processed in veterinary diagnostic laboratory at Gahayr compus and Duunyo diagnostic laboratory. The content of eggs and their surface were inoculated and microbiological examined to established the prevalence of salmonella contamination of Eggs. The bacteriological assessments were conducted through culturing using pre-enrichment (peptone water, enriched broth (TTB and RVC), XLD agar and BGA were used as selective media. And finally biochemical tests were used for confirmation. Results: The total sampled were 400 and 172 out of the 400-sample had growth of salmonella, making the prevalence of salmonellosis in eggs to be 43%. Eggs collected from the backyard poultry farms recorded the highest prevalence (64.9%), While the local commercial farms showed prevalence of 36.1% and imported eggs accounted 27.%. Comparing the number of eggs that had typical salmonella growth from the three sample categories shows that 67% of Eggs collected from backyard poultry farms had typical salmonella growth, while 12% of the eggs collected from local commercial poultry farms had typical salmonella growth the least was the imported eggs that 27.8% of eggs collected from imported eggs had typical salmonella growth. The Prevalence of surface inoculum and content inoculum shows that the surface inoculum had the highest growth of salmonellosis accounting 61.1% and content inoculum had 39.9%. Eggs collected from the back yard had 48(55%) egg surface growth and 39(44.8%) egg content growth, while local modern commercial poultry farms had 32(66.7%) egg surface growth and 16(33.3%) egg content growth. The imported eggs showed egg surface growth of 25(67.6%) and 12(34.4%) Growth in the surface inoculum is suggestive that: Poor knowledge of egg handling, in adequate facilities and lack of quality control of eggs are the main constrains. It was concluded from the study that Salmonella is widespread in backyard poultry eggs and egg suppliers do not have knowledge of egg handling in addition they are not aware of the risks of contaminated eggs have to public consumers. It is recommended from the study that a joint and coordinated quality control measure for eggs is necessary to avoid the risk of salmonella organism.
2021 •
Salmonella remains one of the notable food-borne bacterial pathogens. It is associated with poultry and poultry products including eggs. This study investigated Salmonella distribution in eggshell and content, their antimicrobial resistance pattern, and the possible risk factors driving contamination in Ogun State, Nigeria. A total of 500 eggs (5 eggs pooled into one sample) were collected and culturally examined for the presence of Salmonella serovars. Isolates were further characterized biochemically using Microbact 20E (Oxoid) and Antimicrobial susceptibility determined by the Kirby-Bauer disk diffusion method. A total of 14 Salmonella isolates spread across 10 serovars were recovered from the 100 pooled egg samples; 10 (10%) from the market and 4 (4%) farms, 13(13%) eggshell, and 1(1%) egg content. All tested serovars were susceptible to ampicillin, chloramphenicol, florfenicol, and kanamycin. Resistance was mostly observed in sulfamethoxazole 8 (80%), followed by ciprofloxacin ...
2024 •
2023 •
IEEE Open Journal of Antennas and Propagation
Ultra-Wideband Phased Antenna Array Time Delay Unit Architecture Optimization in Presence of Component Non-Idealities2024 •
MRS Proceedings
Modelling UO2 and Simfuel Leaching Behaviour in Granite Groundwater Under Oxidizing Conditions1999 •
2014 •
IEE Proceedings F Communications, Radar and Signal Processing
Performance evaluation of convolutional codes with MPSK on Rician fading channels1987 •
2018 •
Revista de Investigación Desarrollo e Innovación
Tendencias y estrategias en transporte marítimo sostenible: perspectivas desde la investigación global2024 •
Environmental Research Letters
Lifecycle greenhouse gas implications of US national scenarios for cellulosic ethanol production2012 •