Fig. 7From: Glutamate promotes nucleotide synthesis in the gut and improves availability of soybean meal feed in rainbow troutMorphological alteration in distal intestine by SBM feed. Transverse section of distal intestine mucosal fold a FM diet group, b SBM diet group. The fish were challenged to 8 weeks of experiment and fasted for the last 48 h of experiment. The central panel is an extended image of the area surrounded by a broken line in a. dv digestive vacuole, lp lamina propria, pv pinocytotic vacuoles, sm submucosa. Scale bar 100 μmBack to article page