For citations:

Fedyuk E.I., Polozyuk O.N., Mikheeva O.V., Fedyuk V.V. Fattening and meat properties of pigs, getting an extract of the duode-num and probiotics. Agrarian science. 2019;(3):16-19. (In Russ.) https://doi.org/10.32634/0869-8155-2019-323-3-16-19