Petrenko, H. O., O. H. Bordunova, and O. M. Chernenko. “STUDY OF THE INFLUENCE OF CHICKEN FEEDING ON QUALITATIVE PARAMETERS OF THE BIOCERAMIC PROTECTIVE LAYER OF EGGS”. Bulletin of Sumy National Agrarian University. The Series: Livestock, no. 1, July 2022, pp. 52-58, doi:10.32845/bsnau.lvst.2022.1.8.