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Abstract

Dairy heifers represent the future of a dairy herd, and are expected to freshen with a healthy and well-developed udder, capable of producing an optimal amount of high quality milk. A high proportion of heifers have infected mammary quarters at calving, with coagulase-negative staphylococci (CNS)...

Author(s)
Piepers, S.; Vliegher, S. de; Kruif, A. de; Opsomer, G.; Barkema, H. W.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Microbiology, 2009, 134, 1/2, pp 113-120
Abstract

Coagulase-negative staphylococci (CNS) are abundantly present in the dairy farm environment and on bovine skin and mucosae. They are also the most prevalent bacteria causing bovine intramammary infections (IMI). Reservoirs and transmission routes of CNS are not yet fully unraveled. The objectives...

Author(s)
Visscher, A. de; Supré, K.; Haesebrouck, F.; Zadoks, R. N.; Piessens, V.; Coillie, E. van; Piepers, S.; Vliegher, S. de
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Veterinary Microbiology, 2014, 172, 3/4, pp 466-474
Abstract

Non-aureus staphylococci (NAS), the microorganisms most frequently isolated from bovine milk worldwide, are a heterogeneous group of numerous species. To establish their importance as a group, the distribution of individual species needs to be determined. In the present study, NAS intramammary...

Author(s)
Condas, L. A. Z.; Buck, J. de; Nobrega, D. B.; Carson, D. A.; Naushad, S.; Vliegher, S. de; Zadoks, R. N.; Middleton, J. R.; Dufour, S.; Kastelic, J. P.; Barkema, H. W.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2017, 100, 7, pp 5592-5612
Abstract

Ten non-motile, Gram-stain-positive, coagulase-negative staphylococci were isolated from bovine milk and teat apices. All isolates were catalase-positive, with anteiso-C15:0, iso-C15:0, anteiso-C17:0, iso-C17:0 and C18:0 as predominant fatty acids and diphosphatidylglycerol and phosphatidylglycerol ...

Author(s)
Supré, K.; Vliegher, S. de; Cleenwerck, U.; Engelbeen, K.; Trappen, S. van; Piepers, S.; Sampimon, O. C.; Zadoks, R. N.; Vos, P. de; Haesebrouck, F.
Publisher
Society for General Microbiology, Reading, UK
Citation
International Journal of Systematic and Evolutionary Microbiology, 2010, 60, 12, pp 2739-2744
Abstract

In this paper, we analyzed a very large field data set on intramammary infections (IMI) and the associated somatic cell count (SCC) in dairy cows. The objective of the study was to analyze the impact of coagulase-negative staphylococci (CNS) IMI on cow SCC, both mean and variability, and on the...

Author(s)
Schukken, Y. H.; González, R. N.; Tikofsky, L. L.; Schulte, H. F.; Santisteban, C. G.; Welcome, F. L.; Bennett, G. J.; Zurakowski, M. J.; Zadoks, R. N.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Microbiology, 2009, 134, 1/2, pp 9-14
Abstract

Coagulase-negative staphylococci (CNS) are isolated commonly from bovine milk and skin. Their impact on udder health and milk quality is debated. It has been suggested that sources and consequences of infection may differ between CNS species. Species-specific knowledge of the impact and...

Author(s)
Zadoks, R. N.; Watts, J. L.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Microbiology, 2009, 134, 1/2, pp 20-28
Abstract

Staphylococcus aureus is a major cause of mastitis in dairy cattle. This study estimated the herd prevalence of methicillin-resistant Staph. aureus (MRSA) among US dairy herds by testing bulk tank milk (BTM) samples using genotypic and phenotypic methods. A nationally representative sample of 542...

Author(s)
Virgin, J. E.; Slyke, T. M. van; Lombard, J. E.; Zadoks, R. N.
Publisher
American Dairy Science Association, Savoy, USA
Citation
Journal of Dairy Science, 2009, 92, 10, pp 4988-4991
Abstract

Mastitis is an important disease of dairy cattle. The disease has been around for a long time. Still, in the last decades, major changes in the understanding of the epidemiology and pathobiology of the disease have occurred. In this paper, the major changes in the understanding of bovine mastitis...

Author(s)
Schukken, Y. H.; Piepers, S.; Zadoks, R. N.; Vliegher, S. de
Publisher
Faculty of Veterinary Medicine, University of Ghent, Merelbeke, Belgium
Citation
Vlaams Diergeneeskundig Tijdschrift, 2013, 82, 5, pp 243-256
Abstract

Mastitis, inflammation of the mammary gland, is often caused by intramammary infection with bacterial organisms. It impacts on dairy cattle welfare, production, udder health and longevity in the herd. Current detection methods for mammary inflammation and infection all have limitations,...

Author(s)
Simões, P. B. A.; Campbell, M.; Viora, L.; Gibbons, J.; Geraghty, T. E.; Eckersall, P. D.; Zadoks, R. N.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Research in Veterinary Science, 2018, 116, pp 83-87
Abstract

Objectives: Methicillin resistance in Staphylococcus spp. results from the expression of an alternative penicillin-binding protein 2a (encoded by mecA) with a low affinity for β-lactam antibiotics. Recently, a novel variant of mecA known as mecC (formerly mecALGA251) was identified in ...

Author(s)
Harrison, E. M.; Paterson, G. K.; Holden, M. T. G.; Ba XiaoLiang; Rolo, J.; Morgan, F. J. E.; Pichon, B.; Kearns, A.; Zadoks, R. N.; Peacock, S. J.; Parkhill, J.; Holmes, M. A.
Publisher
Oxford University Press, Oxford, UK
Citation
Journal of Antimicrobial Chemotherapy, 2014, 69, 4, pp 911-918

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