Multiple choice A material used in a footbath for cows with foot rot problems is: Copper sulfate Monosodium phosphate Calcium carbonate Sodium chloride Reveal answer Fill a bubble to check yourself A Correct answer Explanation Copper sulfate is a standard chemical used in footbaths to treat and prevent foot rot and digital dermatitis in dairy cattle. It acts as an astringent and antiseptic to harden the hoof tissue.