Intestinal Histopathologies due to infestation of Bothriocephalus acheilognathi in the common carp, Cyprinus carpio (Linn. 1758)

Abstract

The present investigation was undertaken to study the intestinal histopathologies due to infestation of helminth parasite, Bothriocephalus acheilognathi in the Cyprinus carpio. Only symptomatic and moribund samples of adult diseased fishes of Cyprinus carpio were collected and were brought to the laboratory for patho-morphological and patho-anatomical examinations. The main histopathological lesions and changes were seen in the intestine. The prominent cells were shrinking of nucleus indicating pyknosis gradual loss of parts and mucosal and submucosal cells, excessive mucus secretion and lymphatic infiltration in lamina propria. Further edema and extreme of necrosis as apparent from cells undergoing process death was another important pathology induced by B. acheilognathi. In addition to these findings, shorting atrophy and villi almost complete loss of normal architecture changes were found histopathological important in intestine of C. carpio. No changes were noticed in other organs of the affected fishes. In severe infestations the fishes showed growth retardation.