The commissioner shall cause systematic investigation, insofar as available funds will permit, to be made as to the existence of pleuropneumonia, foot and mouth disease, glanders, hog cholera, anthrax, black leg, hemorrhagic septicemia, rabies, scrapie, fowl cholera, European fowl pest, or any other infectious or contagious disease among cattle, horses, asses, mules, sheep, swine and all other domestic animals, and the commissioner or the commissioner’s duly authorized agent may enter any premises, including stockyards within any part of the state in or at which the commissioner has reason to believe that there exists or may exist any such disease and make search, investigation and inquiry in regard to the existence thereof.