Histopathological Changes in Vital Organs of Oreochromis niloticus in Fish Farm Irrigated with Drainage Water in El Fayoum Province, Egypt | Chapter 1 | Emerging Issues in Agricultural Sciences Vol. 7

 This branch aimed to interrogate the impact of heavy metals pollution in a chum farm in El Fayoum Province on some internal organs tissues (liver, gills, intestines and influences) of Oreochromis niloticus (L.). Pollution of aquatic surroundings is a serious and growing question [1], which is frequently brought about by growing domestic, agricultural, marketing and industrial exercises of man. Fish samples of Oreochromis niloticus (L.) were taken during period 2006 from a fish farm in El Fayoum Province for monitoring bioaccumulation of few heavy metals (Fe, Mn, Cu, Zn, Pb and Cd) in the liver, entrails, gills and muscles of the cast and their effect on the tissue means. The present study revealed that, the concentrations of zinc and lead were above the permissible level in the liver, entrails, gills and muscles of Oreochromis niloticus (L.). The concentrations of law enforcement officer and cadmium were higher than the permissible level in the liver for policeman and in the liver and intestine for cadmium. The liver, gills, entrails, and muscles all presented a number of histological irregularities. Hepatocytes in the liver sections showed signs of deterioration and necrosis. Necrotic patches and extending deterioration suffused the hepatic tissue. The fish gills were checked under a microscope, which disclosed edema in the primary and subordinate lamellae, full melding of the secondary lamellae, and telangiectasis (blood cell blockage in the ends of the subordinate lamellae). The fish's gills likewise experienced abundant bleeding. The hisopathological changes in the intestine contained degeneration and fatality of epithelial cells of covering layer, aggregation of inflammatory containers in submucosa and destruction of muscularis. Skeletal powers exhibited various stages of degeneration, disintegration, necrosis and infiltration of angering cells. The difficult metals accumulated in the internal organs of Oreochromis niloticus (L.) and caused many pathological lesions. So, we approve treatment of seepage water before its entrance into chum farms.

Author(s) Details:

Amal M. Yacoub,
National Institute of Oceanography and Fisheries, Fish Research Station- El Kanater El Khairya, Cairo, Egypt and Biology Department, Faculty of Scienc, Taif University, Saudi Arabia.

Soad A. Mahmoud,
National Institute of Oceanography and Fisheries, Fish Research Station- El Kanater El Khairya, Cairo, Egypt and Biology Department, Faculty of Scienc, Taif University, Saudi Arabia.

Safaa I. Tayel,
National Institute of Oceanography and Fisheries, Fish Research Station- El Kanater El Khairya, Cairo, Egypt and Biology Department, Faculty of Scienc, Taif University, Saudi Arabia.

Please see the link here: https://stm.bookpi.org/EIAS-V7/article/view/11846