Voloshchuk , V., Ivanov , V., Zasukha , L., Bordunova , O., & Pavlenko , J. (2020). Effect of cooled air on keeping sows with piglets. Bulletin of Sumy National Agrarian University. The Series: Livestock, (1 (40), 38-42. https://doi.org/10.32845/bsnau.lvst.2020.1.6