microbiota of the gastrointestinal tract. Afonyushkin Vasily Nikolaevich Candidate of Biological Sciences, Head of the Sector of Molecular Biology, Siberian Federal Scientific Center of the Russian Academy of Sciences, ICBFM SB RAS. Report of the section "Veterinary in poultry farming" of the round table "Import substitution and proposals from the BRICS countries, SCO, CIS: probiotics, immunomodulators, etc.” XII International Scientific and Practical Conference "Veterinary Medicine in the Agroindustrial Complex", Novosibirsk, May 25, 2023. All rights reserved.