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Investigation and characterization of Aliarcobacter spp. isolated from cattle slaughterhouse in Türkiye

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Abstract

Aliarcobacter spp. have been isolated from numerous food products at retail and from animal carcasses and feces at slaughter. The objectives of this study were as follows: (i) to isolate Aliarcobacter species from different slaughterhouses’ samples and (ii) to detect genetic diversity, antibiotic resistance, biofilm ability, and putative virulence gene profiles of the isolates. A molecular investigation of antibiotic resistance and virulence factors was also conducted using polymerase chain reaction (PCR). Among 150 samples, a total of 22 (14.6%) Aliarcobacter spp. isolates were obtained, with varying levels of antibiotic resistance observed. The genes tetO, tetW, and gyrA were detected in 0%, 31.8%, and 27.2% of the isolates, respectively. All isolates were resistant to ampicillin, rifampin, and erythromycin, while tetracycline was found to be the most effective antibiotic, with 81.8% of the isolates showing susceptibility to it. All isolates (100%) harbored more than one of the nine putative virulence genes tested, with 18.1% of isolates carrying more than three. Regarding biofilm formation, 7 (31.8%) and 4 (18.1%) isolates were found to form strong and moderate biofilms, respectively, while one (4.5%) isolate was classified as a weak biofilm producer. ERIC-PCR band patterns suggested that the isolated Aliarcobacter spp. from slaughterhouses had different sources of contamination. These findings highlight the potential risk posed by pathogenic and multidrug-resistant Aliarcobacter spp. in food and the need for control measures throughout the food chain to prevent the spread of these strains. The results indicate that foods of animal origin and cattle slaughterhouses are significant sources of antimicrobial resistant Aliarcobacter.

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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

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All authors have carried out the experiments and discussed the results and contributed to the final manuscript. H.B.D.: formal Analysis, investigation, resources, data curation, writing—review and editing. H.H.: methodology, data curation, original draft,—review and editing, project administration. C.G., M.B., A.D., D.A.G.: formal analysis, experimental works. S.A., N.E.O., Y.Y., Z.G.: investigation,—review and editing.

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Correspondence to Huseyin Burak Disli.

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The authors declare that they have no competing interest.

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This manuscript has been preprinted at: https://www.researchsquare.com/article/rs-3001674/v1, under https://doi.org/10.21203/rs.3.rs-3001674/v1

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Parts of this study were presented at the VIII National/II International Veterinary Food Hygiene Congress, 24–27 October 2019, Antalya, Turkey, as a poster presentation.

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Disli, H.B., Hizlisoy, H., Gungor, C. et al. Investigation and characterization of Aliarcobacter spp. isolated from cattle slaughterhouse in Türkiye. Int Microbiol (2024). https://doi.org/10.1007/s10123-023-00478-3

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  • DOI: https://doi.org/10.1007/s10123-023-00478-3

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