Animals have been domesticated and kept as a source of milk for tens of thousands of years, When humans keep animals for their ability to produce milk, the animals are usually kept in confined spaces. As a result of this confinement the animals are exposed to high levels of urine and fecal matter which originated with the animals which are being kept. This exposure contaminates the animal and in particular the udder and teats of the animal, with bacteria. In the milking process this bacteria can further contaminate the milk which is destine for human consumption. The bacteria can further cause mastitis in the bovine. The above set forth problems are eliminated in the subject invention wherein the udder and teat areas of the bovine are sanitized with a solution of trichloromelamine.