ue and effective as an oral supplement.Hyperimmune bovine colostrum may have antimicrobial activity based on the ability of specific immunoglobulins of the IgG type to react with bacterial, viral and other microbiological antigens in the gut. It may also contain colostrininorproline-rich polypeptide (PRP), another possible immunomodulatory substance. The combination of specific, as well as nonspecific, IgGs and such immunomodulatory factors as lactoferrin and PRP may afford general antimicrobial