“…For this reason, many recent aquaculture studies have focused on the search for organic‐based antimicrobial, antifungus, immunostimulant, anti‐inflammatory and stress‐relieving products that will provide maximum benefits (Asadi, Mirvaghefei, Nematollahi, Banaee & Ahmadi, ; Balamurugan et al., ; Hernández, Romero, Gonzalez‐Stegmaier & Dantagnan, ; Kirubakaran, Subramani & Michael, ). Generally, in these studies, microorganisms, plants and plant extracts, volatile oils, active substances or polysaccharides were investigated (Acar, Kesbiç, Yılmaz, Gültepe & Türker, ; Bilen, Ünal & Güvensoy, ; Güllü et al., ; Gültepe et al., ; Sönmez, Bilen, Alak et al., ).…”