Figure 2: Histochemical analysis of goblet cells of posterior intestine of grass carp. (A) Numerous Alcian blue positive goblet cells (arrow). (Combined AB and PAS). (B) Higher magnification of the goblet cells (arrow) that reacted positively foralcian blue (alcian blue⁄ Van Gieson). (C) Photomicrograph of the posterior intestine of grass carp showing numerous PAS positive goblet cells (arrow) (PAS).