Fig. 1

Experimental procedure and general results. A Nyctereutes procyonoides were acclimatized under experimental feeding conditions for 7 d, the ND group was fed a normal ration, the HFD group was fed a normal ration with an excessive amount of fat, and the samples were collected after 10 d of feeding. B Diarrhea status of Nyctereutes procyonoides. C Histopathological examination of the colon; the scale indicates 50 μm in B and 100 μm in C