Commercially laid eggs vs. discarded hatching eggs: contamination by Salmonella spp

Kottwitz, Luciana Bill Mikito; Leão, Joice Aparecida; Back, Alberto; Rodrigues, Dália dos Prazeres; Magnani, Marciane; Oliveira, Tereza Cristina Rocha Moreira de

doi:10.1590/s1517-83822013005000036

Cited by 12 publications

(8 citation statements)

References 19 publications

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“…Regarding the frequency of isolation of Salmonella spp. from eggshells in the current study, 2.0% of the pooled eggshells (4 of 196), is slightly higher than the frequency of 1.05% reported by Chemaly et al () for layer farms in France, the 0.07 to 0.4% in Canada (Poppe, Duncan, & Mazzocco, ), and the failure (0.0%) to isolate the pathogen from eggshells by others (Adesiyun et al, ; Kemal, Sibhat, Menkir, & Beyene, ; Kottwitz et al, ). Our finding in the current study, however, is low compared with the isolation rate of 3.5% for Salmonella spp.…”

Section: Discussioncontrasting

confidence: 63%

Food safety risk posed to consumers of table eggs from layer farms in Gauteng Province, South Africa: Prevalence of Salmonella species and Escherichia coli, antimicrobial residues, and antimicrobial resistant bacteria

Adesiyun

Nkuna²,

Mokgoatlheng‐Mamogobo³

et al. 2020

Journal of Food Safety

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The study conducted on 39‐layer farms in Gauteng Province, South Africa determined the prevalence and resistance of enteropathogens, and antimicrobial residues in table eggs collected from the farms. Eggs were tested for the presence of bacteria using standard methods. The resistance of bacteria to eight antimicrobial agents was determined using the disc diffusion method. Antimicrobial residues were detected in table eggs using the microbial inhibition test, enzyme‐linked immunosorbent assay (ELISA), and high performance liquid chromatography (HPLC). Risk factors for egg contamination by bacteria and antimicrobial residues were determined through a questionnaire survey of farmers. The farm prevalence of Salmonella spp. and Escherichia coli in table eggs was 7.7 and 48.7%, respectively. Nineteen (48.7%) and 2 (5.1%) of eggshells and egg contents, respectively, were positive for E. coli but only eggshells yielded Salmonella species, 2.0% (4 of 196). Overall, 71.4% of 49 E. coli isolates exhibited resistance to one or more antimicrobial agents. The farm prevalence and egg content prevalence of antimicrobial residues was 2.6 and 0.5%, respectively, with the detection of sulfonamide (79 ppb) and oxytetracycline (106 ppb). The prevalence of resistant E. coli and Salmonella spp. and the occurrence of antimicrobial residues in egg content may pose food safety and therapeutic threats to consumers.

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Section: Discussioncontrasting

confidence: 63%

Food safety risk posed to consumers of table eggs from layer farms in Gauteng Province, South Africa: Prevalence of Salmonella species and Escherichia coli, antimicrobial residues, and antimicrobial resistant bacteria

Adesiyun

Nkuna²,

Mokgoatlheng‐Mamogobo³

et al. 2020

Journal of Food Safety

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“…Nitrofurantoin resistance frequencies vary widely, some exceeding 50% and others below 10%. The same occurs with tetracycline; resistance frequencies range between 10% and 30% [35,[37][38][39][40][41][42][43][44][45].…”

Section: Salmonella Spmentioning

confidence: 86%

“…Resistance frequencies to folate inhibitors are generally high but variable, similar to the strains isolated from poultry [35,37,38,40,42,52,80,81,83,84]. However, the frequency of aminoglycoside resistance frequencies is generally higher in Salmonella strains isolated from pigs (Tables 1 and 2) [38,41,52,75,81,84,85].…”

Section: Salmonella Sppmentioning

confidence: 88%

Antimicrobial Resistance in Farm Animals in Brazil: An Update Overview

Rabello

Bonelli

Penna

et al. 2020

Animals

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In animal husbandry, antimicrobial agents have been administered as supplements to increase production over the last 60 years. Large-scale animal production has increased the importance of antibiotic management because it may favor the evolution of antimicrobial resistance and select resistant strains. Brazil is a significant producer and exporter of animal-derived food. Although Brazil is still preparing a national surveillance plan, several changes in legislation and timely programs have been implemented. Thus, Brazilian data on antimicrobial resistance in bacteria associated with animals come from official programs and the scientific community. This review aims to update and discuss the available Brazilian data on this topic, emphasizing legal aspects, incidence, and genetics of the resistance reported by studies published since 2009, focusing on farm animals and derived foods with the most global public health impact. Studies are related to poultry, cattle, and pigs, and mainly concentrate on non-typhoid Salmonella, Escherichia coli, and Staphylococcus aureus. We also describe legal aspects of antimicrobial use in this context; and the current occurrence of genetic elements associated with resistance to beta-lactams, colistin, and fluoroquinolones, among other antimicrobial agents. Data here presented may be useful to provide a better understanding of the Brazilian status on antimicrobial resistance related to farm animals and animal-derived food products.

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“…33 (59) 8 (14) 6 (11) 4 (7) 32 (57) 4 (7) 2 (4) NS: Could not be serogrouped/serotyped with available antisera. Bolded and underlined isolates in parentheses: serotyped as Salmonella enterica subspecies enterica serovar Enteritidis/ derived food and avian isolates in this study could be mainly related to the production system used; differences in slaughtering and cooling processes; variations in market types and storage conditions; differences in sampling period, year, and region; sampling methods; sample type; and isolation and identification method used (13,20,26). SE-rPCR results of the 56 total Salmonella isolates indicated that 33 (59%) and 23 (41%) of the isolates were positive and negative, respectively.…”

Section: Discussionmentioning

confidence: 92%

Salmonella Enteritidis predominance determined by serotyping andreal-time PCR in poultry-derived food and avian isolates

Ata¹,

Temelli²,

Eyigör³

et al. 2017

Turk J Vet Anim Sci

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This study aimed to determine Salmonella enterica subspecies enterica serovar Enteritidis (SE) presence by conventional serotyping and SE-specific real-time PCR (SE-rPCR) in poultry-derived food and avian isolates in our laboratory Salmonella spp. collection. Conventional serotyping indicated that 32 (8 chicken meat, 10 egg, 14 avian) out of 56 (57%) isolates were SE, whereas 8 (3 chicken meat, 2 turkey meat, 3 avian) (14%) isolates were serogroup B, 6 (1 chicken meat, 1 egg, 4 avian) (11%) were serogroup C1, 4 (3 chicken meat, 1 turkey meat) (7%) were serogroup C2-C3, 4 (3 chicken meat, 1 turkey meat) (7%) were serogroup E4, and 2 (avian) (4%) isolates were categorized as nonserogrouped/nonserotyped. Thirty-three (8/18 chicken meat, 10/11 egg, 15/23 avian) out of 56 (59%) Salmonella isolates were positive by SE-rPCR. SE was determined as the most prevalent serotype in both of the tests regardless of the sample type. Conventional serotyping and SE-rPCR results were in agreement in all but 1 isolate. Considerably high relative accuracy (98%), sensitivity (100%), and specificity (96%) with almost perfect agreement between the two methods (Cohen's kappa = 0.96) indicated SE-rPCR as a reliable tool in the rapid identification of SE isolates to complement conventional serotyping.

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Commercially laid eggs vs. discarded hatching eggs: contamination by Salmonella spp

Cited by 12 publications

References 19 publications

Food safety risk posed to consumers of table eggs from layer farms in Gauteng Province, South Africa: Prevalence of Salmonella species and Escherichia coli, antimicrobial residues, and antimicrobial resistant bacteria

Food safety risk posed to consumers of table eggs from layer farms in Gauteng Province, South Africa: Prevalence of Salmonella species and Escherichia coli, antimicrobial residues, and antimicrobial resistant bacteria

Antimicrobial Resistance in Farm Animals in Brazil: An Update Overview

Salmonella Enteritidis predominance determined by serotyping andreal-time PCR in poultry-derived food and avian isolates

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