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Abstract

The aim of this cross-sectional study was to evaluate the prevalence of subclinical mastitis (SCM) and associated risk factors in dairy cows in peri-urban areas of Kigali, Rwanda, and identify causative udder pathogens. A sample of 256 cows from 25 herds was screened with the California Mastitis...

Author(s)
Ndahetuye, J. B.; Persson, Y.; Nyman, A. K.; Tukei, M.; Ongol, M. P.; Bǻge, R.
Publisher
Springer Berlin, Heidelberg, Germany
Citation
Tropical Animal Health and Production, 2019, 51, 7, pp 2037-2044
Abstract

Coagulase-negative staphylococci (CNS) have become the main pathogens causing bovine mastitis in recent years. A huge variation in species distribution among herds has been observed in several studies, emphasizing the need to identify subgroup- and species-specific herd-level factors to improve our ...

Author(s)
Visscher, A. de; Piepers, S.; Haesebrouck, F.; Supré, K.; Vliegher, S. de
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2017, 100, 1, pp 629-642
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

The effect of non-aureus staphylococci (NAS) in bovine mammary health is controversial. Overall, NAS intramammary infections (IMI) increase somatic cell count (SCC), with an effect categorized as mild, mostly causing subclinical or mild to moderate clinical mastitis. However, based on recent...

Author(s)
Condas, L. A. Z.; Buck, J. de; Nobrega, D. B.; Carson, D. A.; Roy, J. P.; Keefe, G. P.; DeVries, T. J.; Middleton, J. R.; Dufour, S.; Barkema, H. W.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2017, 100, 7, pp 5613-5627
Abstract

Introduction: Staphylococcus aureus and coagulase-negative staphylococci (CNS) are frequently isolated from cows with mastitis. A main virulence factor of CNS is the ability to adhere and form biofilms. The intercellular gene cluster adhesion (ica) operon is one factor involved in biofilm...

Author(s)
Rumi, M. V.; Huguet, M. J.; Bentancor, A. B.; Gentilini, E. R.
Publisher
Open Learning on Enteric Pathogens (OLOEP), Sassari, Italy
Citation
Journal of Infection in Developing Countries, 2013, 7, 7, pp 556-560
Abstract

Subclinical mastitis caused by intramammary infections (IMI) with coagulase-negative staphylococci (CNS) is common in dairy cows and may cause herd problems. Control of CNS mastitis is complicated by the fact that CNS contain a large number of different species. The aim of the study was to...

Author(s)
Thorberg, B. M.; Danielsson-Tham, M. L.; Emanuelson, U.; Waller, K. P.
Publisher
American Dairy Science Association, Savoy, USA
Citation
Journal of Dairy Science, 2009, 92, 10, pp 4962-4970
Abstract

Coagulase-negative staphylococci (CNS) have emerged as bovine mastitis pathogens in many countries. CNS mastitis is generally mild but can persist in the udder for long periods. Pathogenesis of CNS intramammary infection is not well understood. In the present study, adhesion, invasion and...

Author(s)
Hyvönen, P.; Käyhkö, S.; Taponen, S.; Wright, A. von; Pyörälä, S.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Journal of Dairy Research, 2009, 76, 2, pp 144-151
Abstract

Coagulase-negative staphylococci (CNS) are in several countries the most common bacteria isolated in subclinical mastitis. To investigate the innate immune response of cows to infections with two common mastitis-causing CNS species, Staphylococcus epidermidis and Staphylococcus simulans,...

Author(s)
Simojoki, H.; Salomäki, T.; Taponen, S.; Iivanainen, A.; Pyörälä, S.
Publisher
BioMed Central Ltd, London, UK
Citation
Veterinary Research, 2011, 42, 49, pp (17 March 2011)
Abstract

A total of 243 strains of coagulase-negative staphylococci were isolated from milk and skin swabs from 35 cows in which infections from coagulase-positive staphylococci and streptococci were rare. The strains were classified into 4 groups according to source, and into 9 spp. according to the method ...

Author(s)
Baba, E.; Fukata, T.; Matsumoto, H.
Citation
Bulletin of University of Osaka Prefecture, B, 1980, 32, pp 69-75
Abstract

From 170 milk samples derived from cows with suspected mastitis, Staphylococcus aureus (71 strains), S. epidermididis (82 strains) and Micrococcus (17 strains) were isolated. All the S. aureus were coagulase-positive and the other two coagulase-negative. Whereas all the Micrococcus failed to...

Author(s)
Kohler-Samouilidis, G.
Citation
Deutsche Tierarztliche Wochenschrift, 1977, 84, 4, pp 130-132

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