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Reservoirs of Staphylococcus spp. and Streptococcus spp. Associated with Intramammary Infections of Dairy Cows

  • To design cost-effective prevention strategies against mastitis in dairy cow farms, knowledge about infection pathways of causative pathogens is necessary. Therefore, we investigated the reservoirs of bacterial strains causing intramammary infections in one dairy cow herd. Quarter foremilk samples (n = 8056) and milking- and housing-related samples (n = 251; from drinking troughs, bedding material, walking areas, cow brushes, fly traps, milking liners, and milker gloves), were collected and examined using culture-based methods. Species were identified with MALDI-TOF MS, and selected Staphylococcus and Streptococcus spp. typed with randomly amplified polymorphic DNA-PCR. Staphylococci were isolated from all and streptococci from most investigated locations. However, only for Staphylococcus aureus, matching strain types (n = 2) were isolated from milk and milking-related samples (milking liners and milker gloves). Staphylococcus epidermidis and Staphylococcus haemolyticus showed a large genetic diversity without any matches of strain types from milk and other samples. Streptococcus uberis was the only Streptococcus spp. isolated from milk and milking- or housing-related samples. However, no matching strains were found. This study underlines the importance of measures preventing the spread of Staphylococcus aureus between quarters during milking.

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Author:Svenja WoudstraORCiD, Nicole WenteORCiD, Yanchao ZhangORCiD, Stefanie LeimbachORCiD, Carsten Kirkeby, Maya Katrin Gussmann, Volker KrömkerORCiD
DOI original:https://doi.org/10.3390/pathogens12050699
Parent Title (English):Pathogens
Document Type:Article
Year of Completion:2023
Publishing Institution:Hochschule Hannover
Release Date:2023/06/06
Tag:environmental reservoirs; mastitis prevention; pathogen reservoirs; staphylococci; streptococci; transmission pathways
GND Keyword:Euterentzündung; Prävention; Staphylococcus; Streptococcus; Pathogener Mikroorganismus; Krankheitsübertragung
Article Number:699
Gefördert mit Mitteln des Publikationsfonds der Bibliothek der Hochschule Hannover.
Link to catalogue:1858413664
Institutes:Fakultät II - Maschinenbau und Bioverfahrenstechnik
DDC classes:630 Landwirtschaft, Veterinärmedizin
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International