Киричко, Б.П. et al. 2012. The dynamic of opsono-phagocytic reactions of cows as a result of applying of ecologically clean bio solute «Poltavsky bishofit». Scientific Progress & Innovations. 4 (Dec. 2012), 76–79. DOI:https://doi.org/10.31210/visnyk2012.04.19.