eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2017-12-25 14 4 1331 1336 10.13005/bbra/2576 28399 article Palaq 1 Seema Langer 1 Fayaz Ahmad 2 Nighat –Un- Nissa 2 Department of Zoology, University of Jammu, 180006. Department of Zoology, University of Kashmir, 190006. The study describes the effect of pathological manifestation of  an acanthocephalan parasite Neoechinorhynchus sp. in the intestines of fish Labeo rohita of river Tawi (Chenab) of Jammu.  For the histopathological investigations, tissue samples from the infected fish were fixed in Bouin’s fixative for 24 hours, processed and 6-8 micron thick sections were prepared using standard microtomy techniques. This parasite caused severe histological changes in the fish intestine like damaged villi, shortening of villi, inflammation, hyperplasia, erosion of the normal structure, widening of the intestinal lumen and increase in the number of mucus cells. In case of serious infection, damage occurs to both mucosal and submucosal layers. Compression and absence of intestinal villi was also evident. https://www.biotech-asia.org/vol14no4/histolopathological-alterations-in-the-intestines-of-labeo-rohita-infected-with-acanthocephalan-parasite-neoechinorhynchus-sp/ Hyperplasia; Labeo Rohita; Neoechinorhynchus; Tawi