Fate of Atrazine, Kuron, Silvex, and 2,4,5-T in the Dairy Cow

Abstract
No residues of Atrazine, Kuron, Silvex or 2,4,5-T fed at 5 ppm to catheterized dairy cows were found in the milk. About 2% of intact Atrazine was eliminated in the urine. About 67% of the Kuron was hydrolyzed and eliminated as Silvex (Na salt) in the urine. Within experimental error, Silvex and 2,4,5-T appeared to be totally eliminated in the urine as salts.