Khmelnychyi , Leontiy, Victoria Vechorka, Mykola Shpetnyi, Olga Bordunova, Julia Pavlenko, and Victor Opara. 2020. “Fattening and Slaughter Qualities of Pigs of Different Weight Categories Grown up in Pens on a Polymeric and Concrete Floor”. Bulletin of Sumy National Agrarian University. The Series: Livestock, no. 1 (40) (February), 3-10. https://doi.org/10.32845/bsnau.lvst.2020.1.1.