Washing and Sanitizing the Cow's Udder

Liberal use of a plain water wash, preceding a bactericidal treatment is an effective means of sanitizing the cow's udder, preparatory to milking. Both hypochlorite and quaternary ammonium bactericides are aided by the plain water rinse. In this study hypochlorite reduced bacteria counts on teat surfaces and in the milk more satisfactorily than quaternary ammonium solution.