1 Brigita Hengl, DVM, Croatin Food Agency, I. F. Gundulića 36b, Osijek, Croatia 2 Marcela Šperanda, PhD, associated professor; Gordana Kralik, PhD, full professor; University of J. J. Strossmayer, Faculty of Agriculture in Osijek, Trg svetog Trojstva 3, Osijek, Croatia Summary Due to its antioxidant properties, ability to improve taste of feed, digestion function and to boost immune response, p...