Bordunova , O., E. Samokhina, L. Khmelnychyi, M. Povod, and V. Vechorka. “ZOOHYGIENIC CHARACTERISTICS OF BIOTECHNOLOGICAL METHODS OF METABOLISM REGULATING OF CHICKENS EMBRYO IN THE PROCESS OF INCUBATION”. Bulletin of Sumy National Agrarian University. The Series: Livestock, no. 1(44), Mar. 2021, pp. 36-41, doi:10.32845/bsnau.lvst.2021.1.5.