copper sulpahte cow dairy footbath formalin milk farm farms farming cattle cow cows dairy dairys livestock animal animals Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-copper-sulpahte-cow-dairy-footbath-formalin-milk-farm-farms-farming-33146110.htmlRMBWWX5J–copper sulpahte cow dairy footbath formalin milk farm farms farming cattle cow cows dairy dairys livestock animal animals