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Abstract

Subclinical mastitis is one of the major health problems in dairy herds due to decreased milk production and reduced milk quality. The aim of this study was to examine the within-herd prevalence of subclinical intramammary infection caused by Mycoplasma bovis and to evaluate associations between M. ...

Author(s)
Timonen, A. A. E.; Katholm, J.; Petersen, A.; Mõtus, K.; Kalmus, P.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2017, 100, 8, pp 6554-6561
Abstract

Streptococcus agalactiae (Strep. agalactiae) and Staphylococcus aureus (Staph. aureus) are originally regarded as contagious mastitis pathogens, however, both pathogens have recently been isolated from extramammary and environmental sites, indicating that other sites than the udder might contribute ...

Author(s)
Svennesen, L.; Mahmmod, Y. S.; Skjølstrup, N. K.; Mathiasen, L. R.; Katholm, J.; Pedersen, K.; Klaas, I. C.; Nielsen, S. S.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Preventive Veterinary Medicine, 2018, 161, pp 69-74
Abstract

We aimed to evaluate the elimination of 4 different mastitis pathogens, Streptococcus agalactiae, Mycoplasma bovis, Staphylococcus aureus, and Streptococcus uberis, from infected udder quarters during the dry period using quantitative PCR. The second purpose of this study was to evaluate the...

Author(s)
Timonen, A. A. E.; Katholm, J.; Petersen, A.; Orro, T.; Mõtus, K.; Kalmus, P.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 10, pp 9332-9338
Abstract

The objective of the study was to assess the value of quantitative multiplex real-time PCR examination of bulk tank milk samples for bovine mastitis pathogens as a tool for herd level diagnosis. Using a logistic regression model, this study is aimed at calculating the threshold level of the...

Author(s)
Soltau, J. B.; Einax, E.; Klengel, K.; Katholm, J.; Failing, K.; Wehrend, A.; Donat, K.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2017, 100, 10, pp 8287-8295
Abstract

Results of a commercial real-time PCR analysis for 11 mastitis pathogens from bulk tank milk (BTM) samples from all 4,258 Danish dairy herds in November 2009 to January 2010 were compared with somatic cell count (SCC) and total bacteria count (TBC) estimates in BTM. For Streptococcus agalactiae, ...

Author(s)
Katholm, J.; Bennedsgaard, T. W.; Koskinen, M. T.; Rattenborg, E.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2012, 95, 10, pp 5702-5708

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