Novhorodska, Nadiia Volodymyrivna, and Olena Petrivna Razanova. 2022. “DIGESTIBILITY OF NUTRIENTS USING DIFFERENT ZINC AND MANGANESE RATIOS IN THE YOUNG PIGS DIETS”. Bulletin of Sumy National Agrarian University. The Series: Livestock, no. 1 (July), 40-46. https://doi.org/10.32845/bsnau.lvst.2022.1.6.