In veterinary practice for the prevention of salmonela infections has been used vactination and partialy antybacterial preparations (antibiotics, antimicrobial chemical theraphy preparations), which had been used  for the theraphy of ill animals. The unsustainable use of antibiotics and antimicrobial chemical theraphy preparations in veterinary practice caused the selection of pathogenic resistential form of microbes, which resulted significant reduction of therauphevtic effect of preparations.

The use of antibiotics for the prevention and treatment of salmonela desease among animals is not efficvient. In most cases the animals are becoming cariers of deseases and are still staying as a dangerous source for epidemy.  We should note that part of bacterias which cause salmonela among animals: S. typhimurium; S Dublin; S. entritidus; s. cholerae suis; S antum;  as well as S paratyphi  A  and S. paratyphi B, do not cause illness among animals, but are dangerous for humans, because they cause salmonella diseases among people.

So it is very important for veterinary and medicine to keep safe  from salmonella disease animals and their products .Accordingly it becomes more important to create such a safe preparation against salmonella diseases as bacteriophages preparations. Their practical need is defined by their highly specific action oriented effect and lack of correlation towards other anti microbe preparations of bacteria.

The preparations were used for preventive and treatment measures in medicine, veterinary practice, water purification and disinfection.