A stock solution for making pelleted livestock feed or pet food, comprising: a) 20-50 wt %. of an organic acid selected from the group consisting of formic, acetic, propionic, butyric and mixtures thereof, b) 15-30 wt. % of ethoxylated castor oil surfactant having an HLB from 4 to 18 and a molar ratio of 1 molecule of castor oil to 40-60 molecules of ethylene oxide, c) 0-20 wt. % of propylene glycol, d) 0-50 wt. % of water, and a pelleted feed made therewith.
