Diversity and Resistance Profiles of ESBL-Producing Bacteria from Dairy Farms in Türkiye
Author Information
Author(s): Kürekci Cemil, Yüksel Murat, Celil Ozaslan, Büşra Gülay, Tan Sait, Jäckel Claudia, Grobbel Mirjam, Hammerl Jens Andre, Frye Jonathan
Primary Institution: Hatay Mustafa Kemal University
Hypothesis
The study aimed to determine the presence of ESBL-producing Gram-negative bacteria in dairy cattle, goat, and sheep farms located in southern Türkiye.
Conclusion
Dairy animals are reservoirs of ESBL-producing bacteria.
Supporting Evidence
- 47 ceftazidime-resistant Gram-negative strains were found in bovine faecal samples.
- 66.6% of ESBL-producing E. coli isolates were resistant to tetracycline.
- 5.3% of bulk tank milk samples from goats and sheep contained ceftazidime-resistant bacteria.
- PFGE results showed that most E. coli isolates were not clonally related.
Takeaway
The study found that some dairy animals carry bacteria that are resistant to important antibiotics, which can be a problem for health.
Methodology
Samples from dairy farms were collected and tested for ceftazidime-resistant Gram-negative bacteria using selective isolation and antimicrobial susceptibility testing.
Limitations
The study's results may not be generalizable due to the limited geographic area of sample collection.
Participant Demographics
Samples were collected from 50 dairy herds, including 263 lactating cattle, 225 rectal swab samples from goats and sheep, and 75 bulk tank milk samples.
Digital Object Identifier (DOI)
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