Results 31 to 40 of about 64,153 (235)

Intramammary infections with different non-aureus staphylococci in dairy cows [PDF]

Journal of Dairy Science, 2017
Subclinical mastitis causes an increase in milk somatic cell count (SCC) and can lead to reduced milk production and early culling. In many countries, non-aureus staphylococci (NAS) is the most common bacterial finding in subclinical mastitis of dairy ...
Ann-Kristin Nyman, Charlotta Fasth, Karin Persson Waller   +2 more
semanticscholar   +5 more sources

Longitudinal study on the effects of intramammary infection with non-aureus staphylococci on udder health and milk production in dairy heifers [PDF]

Journal of Dairy Science, 2020
We conducted a longitudinal study to evaluate the effect of non-aureus staphylococci (NAS) causing subclinical intramammary infections (IMI) on quarter milk somatic cell count (qSCC) and quarter milk yield (qMY).
Dimitri Valckenier, Sofie Piepers, Y.H. Schukken, A. De Visscher, Filip Boyen, Freddy Haesebrouck, Sarne De Vliegher   +6 more
semanticscholar   +6 more sources

Comparison of the Staphylococcal Chromosome Cassette (SCC) mec in Methicillin-Resistant Staphylococcus aureus (MRSA) and Non-aureus Staphylococci (MRNAS) from Animals and Humans. [PDF]

Antibiotics (Basel), 2021
Methicillin-resistant Staphylococcus aureus (MRSA) and non-aureus staphylococci (MRNAS) cause different infections in animals, including mastitis, in livestock and humans.
Ngassam Tchamba C, Duprez JN, Lucas P, Blanchard Y, Boyen F, Haesebrouck F, Argudín MA, Mainil J, Thiry D.   +8 more
europepmc   +3 more sources

Comprehensive Virulence Gene Profiling of Bovine Non-aureus Staphylococci Based on Whole-Genome Sequencing Data. [PDF]

mSystems, 2019
Non-aureus staphylococci (NAS) are the most frequently isolated pathogens from milk in dairy cattle worldwide. The virulence factors (VFs) and mechanisms by which these bacteria cause udder infection are not fully known.
Naushad S, Naqvi SA, Nobrega D, Luby C, Kastelic JP, Barkema HW, De Buck J.   +6 more
europepmc   +4 more sources

Comprehensive Phylogenetic Analysis of Bovine Non-aureus Staphylococci Species Based on Whole-Genome Sequencing [PDF]

Frontiers in Microbiology, 2016
Non-aureus staphylococci (NAS), a heterogeneous group of a large number of species and subspecies, are the most frequently isolated pathogens from intramammary infections in dairy cattle.
Sohail Naushad, Sohail Naushad, Herman Wildrik Barkema, Herman Wildrik Barkema, Christopher Luby, Christopher Luby, Larissa Anuska Zeni Condas, Larissa Anuska Zeni Condas, Diego Nobrega, Diego Nobrega, Domonique Carson, Domonique Carson, Jeroen De Buck, Jeroen De Buck   +13 more
doaj   +5 more sources

Antimicrobial resistance in non-aureus staphylococci isolated from milk is associated with systemic but not intramammary administration of antimicrobials in dairy cattle [PDF]

Journal of Dairy Science, 2018
Non-aureus staphylococci (NAS) are the bacteria most frequently isolated from bovine milk. Objectives of this study were to determine herd-level associations between antimicrobial use (AMU) and prevalence of antimicrobial resistance (AMR) and ...
Diego B. Nóbrega, Jeroen De Buck, Herman W. Barkema   +2 more
semanticscholar   +5 more sources

Distribution of non-aureus staphylococci species in udder quarters with low and high somatic cell count, and clinical mastitis [PDF]

Journal of Dairy Science, 2017
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 ...
Larissa Anuska Zeni Condas, Jeroen De Buck, Diego B. Nóbrega, Domonique A. Carson, Jean‐Philippe Roy, Greg Keefe, T.J. DeVries, John R. Middleton, Simon Dufour, Herman W. Barkema   +9 more
semanticscholar   +5 more sources

The occurrence of Aerococcus urinaeequi and non-aureus staphylococci in raw milk negatively correlates with Escherichia coli clinical mastitis. [PDF]

mSystems
ABSTRACT Escherichia coli is a common environmental pathogen associated with clinical mastitis (CM) in dairy cattle. There is an interest in optimizing the udder microbiome to increase the resistance of dairy cattle to E.
Jung D, Park S, Kurban D, Dufour S, Ronholm J.   +4 more
europepmc   +7 more sources

Non-aureus staphylococci in fecal samples of dairy cows: First report and phenotypic and genotypic characterization [PDF]

Journal of Dairy Science, 2019
The aims of this study were to determine whether non-aureus staphylococci (NAS) are present in rectal feces of healthy dairy cows, and if so, to delineate species to which they belong and to study several phenotypic and genotypic traits as a first step ...
Ameline Wuytack, A. De Visscher, Sofie Piepers, Filip Boyen, Freddy Haesebrouck, Sarne De Vliegher   +5 more
semanticscholar   +5 more sources

Chitosan can improve antimicrobial treatment independently of bacterial lifestyle, biofilm biomass intensity and antibiotic resistance pattern in non-aureus staphylococci (NAS) isolated from bovine clinical mastitis. [PDF]

Front Microbiol, 2023
Bovine mastitis is the most frequent and costly disease that affects dairy cattle. Non-aureus staphylococci (NAS) are currently one of the main pathogens associated with difficult-to-treat intramammary infections. Biofilm is an important virulence factor
Breser ML, Tisera L, Orellano MS, Bohl LP, Isaac P, Bianco I, Porporatto C.   +6 more
europepmc   +2 more sources