Mastitis bacteria can be divided into two main groups – contagious and environmental. The contagious agents spread from cow to cow, mostly during milking. The environmental bugs are mainly picked up (unsurprisingly) from the environment – especially where there is faecal contamination and mud.
Finding out the main type of bacteria causing mastitis directs our preventive efforts and treatment plan. This information is gained from cultures of milk from clinical cases or high Somatic Cell Count (SCC) cows.