Sources and risk factors
Criteria aureus ag plasma CNS Strep coli Non coli
Newly purchased animals x x x x x x
No dry treatment of cows x x x x x x
Teat end lesions x x x x x x
Heifers that freshen with mastitis x x x x
Fly control program x x x x x x
Poor udder preparation x x x x x x x
Poor bedding management x x x x
Damaged teatliners and hoses x x x x
Unclean environmental conditions x x x x x x
Unclipped and unflamed udders x x x x