Lipoxygenase Enzymes, Oligosaccharides (Raffinose and Stachyose) and 11sA4 and A5 Globulins of Glycinin Present in Soybean Meal Are Not Drivers of Enteritis in Juvenile Atlantic Salmon (Salmo salar)

Soybean meal has been largely investigated and commercially used in fish nutrition. However, its inclusion levels have carefully considered due to the presence of antinutritional factors, which depending on a series factors might induce gut inflammation damaging mucosal integrity causing enteritis. Several strategies including genetic engineering applied attempting reduce or eliminate some factors. Accordingly, we assessed intestinal health juvenile Atlantic salmon fed high speciality soybean genotypes with reduced-to-no content amounts lipoxygenases, altered glycinin profile reduced oligosaccharides. No major signs enteritis, only indication enteritis progression, was noticed meal-based diets illustrated by mild changes distal intestine morphology. Whereas fish, fishmeal control feeds, displayed normal integrity. Speciality types did not improve suggesting these antinutrients are drivers inflammatory process this species. additional benefits terms production performance blood biochemistry were compared traditional soybean.