Study of bactericidal and fungicidal activity of the supplementary feed based on humic acids

Humic substances are a natural product of the joint evolution of the mineral and organic soil components. There is evidence of their resorptive activity, the effect on various enzymes activity, antiviral activity, in particular - against the herpes HSV virus, as well as bactericidal and fungicidal activity. Humic substances are used as feed additives to increase productivity and stimulate immunity in animals. The article presents the research results, indicating the absence of direct killer effect of biologically active supplement based on humic acids on some gram-negative, gram-positive, including spore-forming, microorganisms, as well as yeast-like and mold microscopic fungi. The absence of direct killer effect of humic acids on microorganisms does not allow to recommend the additive as an antiseptic. The use of additives for animals, both orally and externally, will not lead to disruption of the macroorganism’ microflora, will not provoke the development of dysbacterial reactions and damage to the natural biofilm, which plays an important role in the life of the animal.