| 摘要 |
Post-milking udder care to assure udder disinfection, including coloring the udder with an iodine-free inorganic composition as an indicator of such treatment, including especially applying to the udder of a milking animal an aqueous solution of an alkali metal hypochlorite containing an alkali metal permanganate in such concentration as to be visible for at least a substantial period of time thereafter, if not up until the time of the next milking. Preferred compositions include several percent of sodium hypochlorite, with enough potassium permangananate to be visible for such a period of time on an udder to which it is applied.
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