Fig. 1

Gut morphological data from histological analysis of pigs fed experimental diets. A Representative pictures of jejunum of pigs; B-C Morphological indexes (villus height, crypt depth, and their ratio) of pigs; D The number of goblet cells per villus height in jejunum of pigs. ^a,b,c Mean values within a row have different superscript letters were significantly different (P < 0.05). Treatment groups: CON, control group fed with basal diet; SPL5, group fed with 5 mg/kg of SPL supplemented diet; SPL10, group fed with 10 mg/kg of sophorolipid-supplemented diet; SPL15, group fed with 15 mg/kg of sophorolipid-supplemented diet