Field reports indicate that teat irritation occurred in a few herds where teat ointments and salves were used post milking along with the practice of predipping as a pre-milking sanitation method. Apparently the teat irritation resulted from the chemical interaction of the residual salve and the predip solution. Some other innovations could prove useful in the future. For example, some research work and field studies have been conducted trying a dry dip. This product is a powdered disinfectant which when applied immediately after milking sticks to the moist teat.
Recent research does indicate that the powder dips are effective.
Summary Teat dip every teat on every cow at every milking every day of her lactation. Be aware of the challenges in teat dip management during below freezing weather. Always mix thoroughly teat dip in storage containers before refilling the teat dip cup. Provide protection from winds around parlor exits and feed bunks located outside buildings. When severe cold exposure conditions exist, continue to teat dip cows but be sure teats are dry before cows leave the parlor.