Borovyk, I.V. 2021. EFFICIENCY OF BACILLUS SPP. PROBIOTIC MSCROORGANISMS USE FOR SANITARY TREATMENT OF SURFACES. Bulletin of Sumy National Agrarian University. The series: Veterinary Medicine. 3 (54) (Nov. 2021), 3-10. DOI:https://doi.org/10.32845/bsnau.vet.2021.3.1.