scholarly journals Analysis of Salmonella enterica Enteritidis isolates from chicken and chicken meat products using PFGE, and MLST

2020 ◽  
Author(s):  
Zunita Zakaria ◽  
Latiffah Hassan ◽  
Zawiyah Sharif ◽  
Norazah Ahmad ◽  
Rohaya Mohd Ali ◽  
...  
Keyword(s):  
Genetic Relatedness ◽  
Meat Products ◽  
Cloacal Swab ◽  
Chicken Meat ◽  
Molecular Characteristics ◽  
Poultry Products ◽  
Food Borne ◽  
Cell Variant ◽  
Livestock Productivity ◽  
Drug Resistant Strains

Abstract BackgroundSalmonella is a very important food-borne pathogen causing illness in humans. The emergence of drug-resistant strains also constitutes a serious worry to global health and livestock productivity. This study investigated Salmonella isolates from poultry and poultry products using the phenotypic antimicrobial screening as well as the molecular characteristics of Salmonella isolates. Upon serotyping of the isolates, the antimicrobial susceptibility profiling using a panel of 9 commonly used antimicrobials was done. Subsequently, the molecular profiles of all the isolates were further determined using Pulsed Field Gel Electrophoresis (PFGE) and the Whole Genome Multi-Locus Sequence Type (wgMLST) analysis in order to obtain the sequence types. ResultsThe PFGE data was input into FPQuest software, and the dendrogram generated was studied for possible genetic relatedness among the isolates. All the isolates were found to belong to the S. Enteritidis serotype with notable resistance to tetracycline, gentamycin, streptomycin, and sulfadimidine. The S. Enteritidis isolates tested predominantly subtyped into the ST11 and ST1925, which was found to be a single cell variant of ST11. The STs were found to occur in chicken meat, food, and live chicken cloacal swab, which may indicate the persistence of the bacteria in multiple foci. ConclusionThe data demonstrate the presence of S. Enteritidis among chicken, indicating its preference and reservoir status for enteric salmonella pathogens.

scholarly journals Analysis of Salmonella enterica serovar Enteritidis isolates from chickens and chicken meat products in Malaysia using PFGE, and MLST

2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Zunita Zakaria ◽  
Latiffah Hassan ◽  
Zawiyah Sharif ◽  
Norazah Ahmad ◽  
Rohaya Mohd Ali ◽  
...  
Keyword(s):  
Genetic Relatedness ◽  
Foodborne Pathogen ◽  
Meat Products ◽  
Chicken Meat ◽  
Molecular Characteristics ◽  
Salmonella Enterica Serovar Enteritidis ◽  
Resistant Strains ◽  
Cell Variant ◽  
Livestock Productivity ◽  
Drug Resistant Strains

Abstract Background Salmonella is a very important foodborne pathogen causing illness in humans. The emergence of drug-resistant strains also constitutes a serious worry to global health and livestock productivity. This study investigated Salmonella isolates from chicken and chicken meat products using the phenotypic antimicrobial screening as well as the molecular characteristics of Salmonella isolates. Upon serotyping of the isolates, the antimicrobial susceptibility profiling using a panel of 9 commonly used antimicrobials was done. Subsequently, the molecular profiles of all the isolates were further determined using Pulsed Field Gel Electrophoresis (PFGE) and the Whole Genome Multi-Locus Sequence Type (wgMLST) analysis in order to obtain the sequence types. Results The PFGE data was input into FPQuest software, and the dendrogram generated was studied for possible genetic relatedness among the isolates. All the isolates were found to belong to the Salmonella Enteritidis serotype with notable resistance to tetracycline, gentamycin, streptomycin, and sulfadimidine. The S. Enteritidis isolates tested predominantly subtyped into the ST11 and ST1925, which was found to be a single cell variant of ST11. The STs were found to occur in chicken meats, foods, and live chicken cloacal swabs, which may indicate the persistence of the bacteria in multiple foci. Conclusion The data demonstrate the presence of S. Enteritidis among chickens, indicating its preference and reservoir status for enteric Salmonella pathogens.

scholarly journals Distribution of serotypes of Listeria monocytogenes in chicken meats in Turkey

2020 ◽  
Vol 70 (4) ◽  
pp. 1859
Author(s):  
S. SAHIN ◽  
R. KALIN ◽  
MN MOGULKOC
Keyword(s):  
Public Health ◽  
Listeria Monocytogenes ◽  
Large Scale ◽  
Meat Products ◽  
Health Problems ◽  
Chicken Meat ◽  
Serotype Distribution ◽  
Food Borne ◽  
Serotype 1 ◽  
Food Borne Infections

Listeria monocytogenes is one of the important causes of food-borne infections. This study was conducted to determine the presence of L. monocytogenes and its serotype distribution in a total of 400 packaged chicken meat products (drumstick, breast, wing, and whole chicken) from different national companies. L. monocytogenes contamination was detected in 26.5% (106 in 400) of all samples when the products considered, drumsticks, breasts, wings, and whole chickens showed 47%, 15%, 35, and 9% positivity respectively. Four important serotypes of L. monocytogenes in human listeriosis (1/2a, 1/2b, 1/2c and 4b) were identified, and serotype 1/2a (94.3%) was determined as predominant in packaged chicken meats. The present study revealed that L. monocytogenes 1/2a serotype is prevalent in chicken meats and this may cause public health problems in Turkey. Further studies in poultry meats should be conducted on a large scale such as regional or national big markets to determine the presence of the pathogen and its dominant serotypes.

scholarly journals Bacteriological studies on some food borne bacteria isolated from Chicken meat and meat products in Kaliobia Governorate

2015 ◽  
Vol 29 (2) ◽  
pp. 47-59
Author(s):  
Ashraf Abd El Tawab ◽  
Fatma El-Hofy ◽  
Ahmed Maarouf ◽  
Aya El-Said
Keyword(s):  
Meat Products ◽  
Chicken Meat ◽  
Food Borne

scholarly journals Virulence genotyping and antimicrobial resistance profiles of Yersinia enterocolitica isolated from meat and meat products in Egypt

2020 ◽  
Author(s):  
G. A. Younis ◽  
R. M. Elkenany ◽  
H. A. Dowidar
Keyword(s):  
Antimicrobial Resistance ◽  
Yersinia Enterocolitica ◽  
Genetic Relatedness ◽  
Meat Product ◽  
Meat Products ◽  
High Sensitivity ◽  
Resistance Rate ◽  
Chicken Meat ◽  
Nucleotide Sequence Analysis ◽  
Rrna Gene

Abstract Pathogenic Yersinia enterocolitica (Y. enterocolitica) is one of the food-borne entero-pathogen responsible for yersiniosis in humans. The purpose of this research was to survey the prevalence, virulence-associated genes, and antimicrobial resistance of Y. enterocolitica isolated from meat and meat product samples in Egypt. Forty-one (5.9%) out of 700- samples of chicken meat, beef, ground beef, and sausage were positive Y. enterocolitica with a high prevalence in chicken meat (12%). Five virulence genes (ail, inv, ystA, ystB, and yadA) were characterized among 41 Y. enterocolitica isolates with variable frequencies. Among the strains tested, the ystB gene was detected with a high percentage (78.1%), followed by inv gene (70.7%), ail gene (14.6%), ystA gene (12.2%), and yadA gene (2.4%). A high resistance rate was estimated to amoxicillin-clavulanic acid (100%), followed by cefazolin (95%), ampicillin (65.9%), and doxycycline (51.2%), whilst a high sensitivity rate was observed to gentamicin and ciprofloxacin (97.6% each). Interestingly, the multidrug resistance was specified in the 70.7% of strains and showing 13 resistance patterns. Based on nucleotide sequence analysis of the 16s rRNA gene, the phylogenetic tree showed the genetic relatedness amongst Y. enterocolitica isolates. These findings highlighted the emergence of virulent and multidrug-resistant pathogenic Y. entrocolitica in retailed meat and meat products in Egypt.

scholarly journals Evaluation of competitiveness, classification and calculation of customs payments of chicken breeds realized on the market

2020 ◽  
Vol 9 (27) ◽  
pp. 391-400
Author(s):  
Oleg Ilyasovich Katlishin
Keyword(s):  
Consumer Preferences ◽  
Scientific Research ◽  
Meat Products ◽  
Modern Science ◽  
Chicken Meat ◽  
Point Of View ◽  
Poultry Meat ◽  
Chicken Breast ◽  
Poultry Products ◽  
Regional Market

The development of industrial production of poultry products is a permanently relevant task for all regions of Russia, including Perm Region, since chicken meat is a daily commodity of the population because of its reasonable price and high consumer properties. However, today there is no comprehensive scientific understanding of issues related to determining the competitiveness of poultry meat products, this scientific topic requires a study of the competitiveness of chicken meat products presented on the regional market. All this determines the relevance of the study. The purpose of the scientific research in the framework of this article is to assess the competitiveness of selected samples (brands) of chicken breasts sold on Perm market. When choosing the hypothesis of scientific research, the author dwelled on the assumption of insufficient coverage of the problem of increasing and calculating the competitiveness of poultry meat products in modern science. Achieving this goal the following tasks are carried out: consideration of the theoretical foundations of the competitiveness of chicken breasts; an examination of the quality of chicken breasts sold in Perm market; conducting market research on consumer preferences and determining the competitiveness of chicken breasts by value for money and using a comprehensive integrated indicator of competitiveness. The object of the research in this article are samples of chicken breast of various brands sold on Perm market. When assessing competitiveness, the selected samples were considered according to group and economic criteria, according to the “brand awareness” indicator, point scales were used. Also, in the study of chicken breast samples, organoleptic, aesthetic indicators and other criteria for competitiveness were evaluated. For the examination of chicken breast in Perm market, the breasts of the following manufacturers were purchased: JSC “PRODO Perm Poultry Factory”, LLC “Udmurt Poultry Factory”, CJSC Uralbroiler, CJSC Petelinskaya Poultry Factory, LLC Belgrankorm-Veliky Novgorod. As a result of the research, the quality was determined and the tested samples of chicken breasts were ranked, their competitiveness was calculated from the professional objective point of view of product consulting by taking into account the quality per unit of money paid, and the real state of competitiveness in this market segment was determined taking into account consumer requests.

scholarly journals Antibiotic resistance is lower in Staphylococcus aureus isolated from antibiotic-free raw meat as compared to conventional raw meat

2018 ◽  
Author(s):  
Haskell Kyler J. ◽  
Schriever Samuel R. ◽  
Fonoimoana Kenisi D. ◽  
Haws Benjamin ◽  
Hair Bryan B. ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Antibiotic Resistance ◽  
Meat Products ◽  
Human Consumption ◽  
Raw Meat ◽  
Resistance Selection ◽  
Poultry Products ◽  
Frequent Use ◽  
Resistant Strains ◽  
Drug Resistant Strains

AbstractThe frequent use of antibiotics contributes to antibiotic resistance in bacteria, resulting in an increase in infections that are difficult to treat. Livestock are commonly administered antibiotics in their feed, but there is current interest in raising animals that are only administered antibiotics during active infections. Staphylococcus aureus (SA) is a common pathogen of both humans and livestock raised for human consumption. SA has achieved high levels of antibiotic resistance, but the origins and locations of resistance selection are poorly understood. We determined the prevalence of SA and MRSA in conventional and antibiotic-free (AF) meat products, and also measured rates of antibiotic resistance in these isolates. We isolated SA from raw conventional turkey, chicken, beef, and pork samples and also from AF chicken and turkey samples. We found that SA contamination was common, with an overall prevalence of 22.64% (range of 2.78-30.77%) in conventional meats and 13.0% (range of 12.5-13.2%) in AF poultry meats. MRSA was isolated from 15.72% of conventional raw meats (range of 2.78-20.41%) but not from AF-free meats. The degree of antibiotic resistance in conventional poultry products was significantly higher vs AF poultry products for a number of different antibiotics, and while multi-drug resistant strains were relatively common in conventional meats none were detected in AF meats. The use of antibiotics in livestock contributes to high levels of antibiotic resistance in SA found in meat products. Our results support the use of AF conditions for livestock in order to prevent antibiotic resistance development in SA.

scholarly journals A novel high-content screening approach for the elucidation of C. jejuni biofilm composition and integrity

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Matthew V. X. Whelan ◽  
Jeremy C. Simpson ◽  
Tadhg Ó Cróinín
Keyword(s):  
Atmospheric Oxygen ◽  
Chicken Meat ◽  
Live Cells ◽  
High Throughput Analysis ◽  
Aerobic Conditions ◽  
Poultry Products ◽  
Source Of Infection ◽  
Fluorescent Markers ◽  
Oxygen Conditions ◽  
Bacterial Gastroenteritis

Abstract Background Campylobacter jejuni is the leading cause of bacterial gastroenteritis worldwide and the main source of infection is contaminated chicken meat. Although this important human pathogen is an obligate microaerophile, it must survive atmospheric oxygen conditions to allow transmission from contaminated chicken meat to humans. It is becoming increasingly evident that formation of biofilm plays a key role in the survival of this organism for extended periods on poultry products. We have recently demonstrated a novel inducible model for the study of adherent C. jejuni biofilm formation under aerobic conditions. By taking advantage of supercoiling mediated gene regulation, incubation of C. jejuni with subinhibitory concentrations of the Gyrase B inhibitor novobiocin was shown to promote the consistent formation of metabolically active adherent biofilm. Results In this study, we implement this model in conjunction with the fluorescent markers: TAMRA (live cells) and SytoX (dead cells, eDNA) to develop a novel systematic high-content imaging approach and describe how it can be implemented to gain quantifiable information about the integrity and extracellular polymeric substance (EPS) composition of adherent C. jejuni biofilm in aerobic conditions. We show that this produces a model with a consistent, homogenous biofilm that can be induced and used to screen a range of inhibitors of biofilm adherence and matrix formation. Conclusions This model allows for the first time a high throughput analysis of C. jejuni biofilms which will be invaluable in enabling researchers to develop mechanisms to disrupt these biofilms and reduce the viability of these bacteria under aerobic conditions.

scholarly journals Transcriptome Analysis of the Cecal Tonsil of Jingxing Yellow Chickens Revealed the Mechanism of Differential Resistance to Salmonella

Genes ◽  
2019 ◽  
Vol 10 (12) ◽  
pp. 979 ◽  
Author(s):  
Fei Wang ◽  
Jin Zhang ◽  
Bo Zhu ◽  
Jie Wang ◽  
Qiao Wang ◽  
...  
Keyword(s):  
Immune Response ◽  
Pathogenic Bacteria ◽  
Molecular Mechanisms ◽  
Differential Resistance ◽  
Receptor Interaction ◽  
Salmonella Infection ◽  
Poultry Products ◽  
Food Borne ◽  
Cecal Tonsil ◽  
Iga Production

Salmonella is one of the most common food-borne pathogens. It can be transmitted between chickens, as well as to people by contaminated poultry products. In our study, we distinguished chickens with different resistances mainly based on bacterial loads. We compared the cecal tonsil transcriptomes between the susceptible and resistant chickens after Salmonella infection, aiming to identify the crucial genes participating in the antibacterial activity in the cecal tonsil. A total of 3214 differentially expressed genes (DEGs), including 2092 upregulated and 1122 downregulated genes, were identified between the two groups (fold change ≥ 2.0, padj < 0.05). Many DEGs were mainly involved in the regulation of two biological processes: crosstalk between the cecal tonsil epithelium and pathogenic bacteria, such as focal adhesion, extracellular-matrix–receptor interaction, and regulation of the actin cytoskeleton and host immune response including the cytokine–receptor interaction. In particular, the challenged resistant birds exhibited strong activation of the intestinal immune network for IgA production, which perhaps contributed to the resistance to Salmonella infection. These findings give insight into the mRNA profile of the cecal tonsil between the two groups after initial Salmonella stimulation, which may extend the known complexity of molecular mechanisms in chicken immune response to Salmonella.

Thiol-functionalized magnetic carbon nanotubes for magnetic micro-solid phase extraction of sulfonamide antibiotics from milks and commercial chicken meat products

2019 ◽  
Vol 276 ◽  
pp. 458-466 ◽  
Author(s):  
Ainiyatul Nadiah Mohamad Nasir ◽  
Noorfatimah Yahaya ◽  
Nur Nadhirah Mohamad Zain ◽  
Vuanghao Lim ◽  
Sazlinda Kamaruzaman ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Meat Products ◽  
Chicken Meat ◽  
Phase Extraction ◽  
Sulfonamide Antibiotics ◽  
Commercial Chicken ◽  
Magnetic Carbon ◽  
Magnetic Carbon Nanotubes
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