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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

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

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

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

In a newly assembled herd of 20 heifers, Staph. epidermidis was found to be the principal cause of udder infections. Although it does not cause severe mastitis, it can cause leucocytosis in milk and reduced milk production in some infected quarters. To study the pathogenicity and spread of this...

Author(s)
Sandvik, O.; Brown, R. W.
Citation
Journal of Bacteriology, 1965, 89, pp 1201-1208
Abstract

Acute Staphylococcus albus infection in one quarter of each of two cows in a herd of eight, failed to respond to treatment with a preparation containing streptomycin and penicillin, becoming chronic in one cow which was slaughtered after six weeks. Milk samples from all the others then yielded ...

Author(s)
BjurströM, I.
Citation
Medlemsblad for Sveriges Veterinarforbund, 1963, 15, pp 503-508
Abstract

In a bacteriological survey on bovine mastitis in Hokkaido, Japan, 515 of the 678 strains of micrococci isolated from milk samples were identified as staphylococci. Pigment production showed that 65% were Stafih. aureus and 75% of these fermented mannitol, 31% were Staph. albus of which 47.2% were...

Author(s)
NAKAGAWA, M.
Citation
Japanese Journal of Veterinary Research, 1958, 6, pp 19-34

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