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Success of interventions in mastitis problems with Staphylococcus aureus after the introduction of an automatic milking system


Ruf, J; Johler, Sophia; Merz, Axel; Stalder, Ueli; Hässig, M (2015). Success of interventions in mastitis problems with Staphylococcus aureus after the introduction of an automatic milking system. Schweizer Archiv für Tierheilkunde, 157(3):153-156.

Abstract

Staphylococcus aureus (S. aureus) is often the cause of mastitis problems in dairy herds and causes great economic losses. In this study, isolates from a dairy herd with a known S. aureus mastitis problem were examined by means of molecular methods (spa typing, PFGE, and DNA microarray) to investigate their epidemiological relationship and the success of intervention measures. The investigated dairy farm has a herd size of 60 cows and uses a fully automated milking system for milk production. A S. aureus strain, which contaminated the automated milking system and was subsequently spread among the herd through the latter, was suspected to be the origin of the mastitis problem within the herd. Thanks to the applied molecular methods, the common origin of the S. aureus isolates from the collected milk and swab samples could be shown. By culling chronically infected cows, optimising dry cow management and ensuring reliable intermediate cluster disinfection, the bulk milk somatic cell count improved

Abstract

Staphylococcus aureus (S. aureus) is often the cause of mastitis problems in dairy herds and causes great economic losses. In this study, isolates from a dairy herd with a known S. aureus mastitis problem were examined by means of molecular methods (spa typing, PFGE, and DNA microarray) to investigate their epidemiological relationship and the success of intervention measures. The investigated dairy farm has a herd size of 60 cows and uses a fully automated milking system for milk production. A S. aureus strain, which contaminated the automated milking system and was subsequently spread among the herd through the latter, was suspected to be the origin of the mastitis problem within the herd. Thanks to the applied molecular methods, the common origin of the S. aureus isolates from the collected milk and swab samples could be shown. By culling chronically infected cows, optimising dry cow management and ensuring reliable intermediate cluster disinfection, the bulk milk somatic cell count improved

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Additional indexing

Other titles:Erfolg von Interventionen bei Mastitiden mit Staphylococcus aureus als Herdenproblem nach der Installation eines automatischen Melksystems
Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Institute of Food Safety and Hygiene
05 Vetsuisse Faculty > Veterinary Clinic > Department of Farm Animals
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Uncontrolled Keywords:Staphylococcus aureus, bovine mastitis, automatic milking system, molecular epidemiology, genotyping
Language:English
Date:2015
Deposited On:18 Feb 2016 17:10
Last Modified:05 Apr 2016 20:05
Publisher:Gesellschaft Schweizer Tierärztinnen und Tierärzte
ISSN:0036-7281
Publisher DOI:https://doi.org/10.17236/sat00012
PubMed ID:26753327

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