To prevent mastitis it is crucial to ensure good hygiene and avoid movement of manure contaminants from environment to udders. You can implement hygiene scoring of udders, thighs and legs and evaluate how clean they are on the score from 1-4, where 1 is the cleanest and 4 is the most contaminated (3 and 4 must be avoided). That would give a more objective and systematic evaluation.
High score for Legs means that you need to keep walkways and lanes clean. High score for Thighs means more cleaning is needed in the stalls and bedding areas. Udder soiling from the front side comes from the legs when cows are lying down and soiling from the back comes from the tale and dirty bedding.
