Key Laboratory of Mariculture(Ocean University of China);
Ministry of Education;
Qingdao 266100;
China;
NORCE Norwegian Research Center;
Mekjarvik 12;
4072;
Randaberg;
Norway;
RORUM Brynjolfsgata 5;
107;
Reykjavik;
Iceland;
Function Laboratory for Marine Fisheries Science and Food Production Processes;
Qingdao National Laboratory for Marine Science and Technology;
Qingdao 266235;
China;
digestive enzymes; docosahexaenoic acid; eicosapentaenoic acid; rainbow trout;