Bordunova , O., Samokhina , E., Khmelnychyi , L., Povod , M. and Vechorka , V. 2020. 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. 4(43) (Dec. 2020), 100-105. DOI:https://doi.org/10.32845/bsnau.lvst.2020.4.15.