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First report of the isolation and molecular characterisation of Lactococcus garvieae in dairy cattle in Poland

Henryk Krukowski

Henryk Krukowski

Department of Animal Hygiene and Environmental HazardsLublin, Poland
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Krukowski, Henryk
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Andrzej Lisowski

Andrzej Lisowski

Department of Cattle Breeding and Genetic Resources Conservation, University of Life Sciences in LublinLublin, Poland
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Lisowski, Andrzej
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Elżbieta Puacz

Elżbieta Puacz

Maria Sklodowska-Curie Warsaw Higher School of MedicineWarsaw, Poland
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Puacz, Elżbieta
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Witold Chabuz

Witold Chabuz

Department of Cattle Breeding and Genetic Resources Conservation, University of Life Sciences in LublinLublin, Poland
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Chabuz, Witold
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Małgorzata Targońska-Karasek

Małgorzata Targońska-Karasek

Department of Animal Hygiene and Environmental HazardsLublin, Poland
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Targońska-Karasek, Małgorzata
  
Jun 13, 2025
First report of the isolation and molecular characterisation of Lactococcus garvieae in dairy cattle in Poland's Cover Image
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Published Online: Jun 13, 2025
Page range: 213 - 218
Received: Jan 29, 2025
Accepted: Jun 05, 2025
DOI: https://doi.org/10.2478/jvetres-2025-0035
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© 2025 Henryk Krukowski et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

Introduction

Lactococcus garvieae is a catalase-negative, Gram-positive coccus that occurs in pairs and short chains. It is present throughout the world and a causative agent of bovine mastitis. However, prior to writing, no case of mastitis caused by this bacterium had been reported in Poland. The aim of this research was to investigate the presence of L. garvieae in milk samples from Polish cows with inflammation of the mammary gland.

Material and Methods

A total of 118 milk samples from 96 Holstein-Friesian cows were spread on blood agar plates for microbial analyses. Then analysis with matrix-assisted laser desorption/ionisation–time-of-flight mass spectrometry, biochemical identification and antibiotic susceptibility evaluation in the VITEK 2 system and a PCR with primers compatible with 16S ribosomal RNA of L. garvieae were performed.

Results

The presence of three strains of L. garvieae was confirmed in milk samples. Analysis of antibiotic susceptibility showed the susceptibility of all isolates to moxifloxacin, erythromycin, linezolid, teicoplanin, vancomycin, tetracycline, tigecycline, chloramphenicol and trimethoprim-sulfamethoxazole. Lactococcus garvieae had high resistance to benzylpenicillin, clindamycin and rifampicin. One of the isolated strains was additionally resistant to tetracycline and had different minimum inhibitory concentrations.

Conclusion

To the best of our knowledge, L. garvieae had not been identified as an aetiological factor of mastitis in cows in Poland before, and the presented research is the first report.
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English
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Journal Subjects:
Life Sciences, Molecular Biology, Microbiology and Virology, Life Sciences, other, Medicine, Veterinary Medicine
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