Determination of antimicrobial susceptibility of bovine mastitis pathogens is important for guiding antimicrobial treatment decisions and for the detection of emerging resistance. Environmental streptococci are ubiquitous in the farm environment and are a frequent cause of mastitis in dairy cows. The aim of the study was to determine patterns of antimicrobial susceptibility among species of env...

The aim of this study was to estimate heritabilities of and genetic correlations between pathogen-specific subclinical mastitis (SCM) traits and lactation mean somatic cell score (LSCS) in Norwegian Red cattle. Based on data from 130 733 first-lactation cows four binary pathogen-specific SCM traits, Staphylococcus aureus, Streptococcus dysgalactiae, Streptococcus uberis and coagulase-negative s...

The ability to hydrolyze starch is a property that is scattered among streptococcal species in 3 of the 4 physiological divisions described by Sherman (1937), the exception being members of the Enterococcus. A single reference to a starch hydrolyzing enterococcus is Mann's (Mann et al., 1954) report of a "starch-fermenting Streptococcus faecalis." Outstanding among the nonhemolytic streptococci...

Attitudes to treating mastitis have changed in response to techniques of therapy and more recently in response to marketing needs for milk. This has led to a need to re-assess the types of treatment available and the aims of using any form of treatment. Different approaches are recommended for different conditions. Aggressive treatment may be used to tackle infections by Streptococcus uberis or...

In addition to causing severe invasive infections in humans, Streptococcus agalactiae, or group B Streptococcus (GBS), is also a major cause of bovine mastitis. Here we provide the first genome sequence for S. agalactiae isolated from a cow diagnosed with clinical mastitis (strain FSL S3-026). Comparison to eight S. agalactiae genomes obtained from human disease isolates revealed 183 genes spec...

Mastitis is the more economically important disease in dairy herds. Costs originated by this disease are not only those related to lost of milk production, treatment of sick animals or culled cows, but also those related with the prevention of this disease. Intramammary infections (IMI) are most of the times caused by infection with bacterial pathogens that could be divided into contagious or e...