The secretary may accept on behalf of the state, donations of money from any person, association, or agency interested in the control of drugging of horses. Any fines, penalties, fees, or donations collected by the secretary under this chapter shall be deposited in the Department of Food and Agriculture Fund. Any interest earned from the investment of moneys derived pursuant to this chapter shall also be deposited in the fund. These moneys shall be used by the department to carry out this chapter.