Non-aureus Staphylococci Species in the Teat Canal and Milk in Four Commercial Swiss Dairy Herds.

Traversari, Julia Johanna Enrica; van den Borne, Bart H P; Dolder, Claudio; Thomann, Andreas; Perreten, Vincent; Bodmer, Michèle (2019). Non-aureus Staphylococci Species in the Teat Canal and Milk in Four Commercial Swiss Dairy Herds. Frontiers in veterinary science, 6, p. 186. Frontiers Media 10.3389/fvets.2019.00186

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Non-aureus staphylococci (NAS) are frequently found in milk samples as well as on the teat apex and in the teat canal and are known to be a cause of subclinical mastitis. The objective of this study was to investigate the relationship between NAS species colonizing the teat canal and those causing intramammary infection (IMI) in four commercial dairy herds. Teat canal swabs were obtained and thereafter milk samples were aseptically collected and evaluated for the presence of staphylococci using selective agar plates. Species identification was performed using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. The relationship between NAS species distribution and sample type (teat canal vs. milk samples) was quantified using hierarchical multivariable logistic regression models. The most prevalent NAS species in teat canal swabs were (35%), (10%), and (7%), whereas in milk samples (5%), (5%), and (4%) were most prevalent. There were significantly higher odds for (OR = 215), (OR = 20), (OR = 22), (OR = 13), and (OR = 10) to be present in teat canal swabs than in milk samples. Differences between herds in NAS species distribution were found and were most pronounced for and a -like species. This information aids in the understanding of NAS species as an etiology of IMI and should be taken into account when interpreting milk culture results.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV)
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Clinic for Ruminants
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP)
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Veterinary Bacteriology

UniBE Contributor:

Traversari, Julia Johanna Enrica; Dolder, Claudio; Thomann, Andreas; Perreten, Vincent and Bodmer, Michèle

Subjects:

600 Technology > 630 Agriculture
500 Science > 570 Life sciences; biology
500 Science > 590 Animals (Zoology)
600 Technology > 610 Medicine & health

ISSN:

2297-1769

Publisher:

Frontiers Media

Language:

English

Submitter:

Nathalie Viviane Zollinger

Date Deposited:

12 Aug 2019 13:53

Last Modified:

24 Oct 2019 19:15

Publisher DOI:

10.3389/fvets.2019.00186

PubMed ID:

31249836

Uncontrolled Keywords:

intramammary infection mastitis non-aureus staphylococci species distribution teat canal

BORIS DOI:

10.7892/boris.131809

URI:

https://boris.unibe.ch/id/eprint/131809

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