If the owner of the animals, within 20 days, pays the poundkeeper his or her fees, including his or her reasonable expenses for advertising and the reasonable expense of keeping, with the impounder's fees, the animals shall be released, otherwise they shall be sold by the poundkeeper at public auction, and the avails shall be applied as in case of the sale of animals taken doing damage when the owner is unknown. (Amended 1959, No. 262, § 34, eff. June 11, 1959.)