ORAL MEDICINE AND METHOD FOR INCREASING HOG RESISTANCE AGAINST HOG DYSENTERY INFECTION

摘要

An oral preparation for increasing the resistance of swine to swine dysentery infection comprises enteric-coated orally-administrable pellets containing concentrated killed cells of a virulent isolate of Treponema hyodysenteriae. In the preferred method of use, the preparation is orally administered to swine in a plurality of doses providing at least 3 mg. of the cells per animal per dose.