S. V. Diakiv Ivan Franko National University of Lviv Ukraine
S. O. Hnatush Ivan Franko National University of Lviv Ukraine
O. M. Moroz Ivan Franko National University of Lviv Ukraine
O. Ya. Prypin Ivan Franko National University of Lviv Ukraine
O. R. Kulachkovskyi Ivan Franko National University of Lviv Ukraine
V. Ye. Bodnaruk Lviv National University of Veterinary Medicine and Biotechnologies named after S. Z. Gzhytskyi Ukraine