Not AvailableLitopenaeus vannamei, is an ideal animal for studying the histological alterations caused
by the exposure of different dietary levels of K+ Mg2+ in two types of waters namely raw
IGSW and 100% K+ Mg2+ fortified IGSW at par with sea water at constant salinity of 10
ppt. Experiment was conducted for a period of 60 days. Three diets were formulated using commercial shrimp feed with varied K+ and Mg2+ levels (K+ = 5 g/kg, Mg2+ = 150 mg/kg; K + = 10 g/kg, Mg2+= 300 mg/kg; K+ = 15g/kg, Mg2+ = 450 mg/kg) and the same commercial feed as control diet. Histological alterations were observed such as loss of Rcells, B-cells and tubular structural damages of hepatopancreas in shrimps reared in raw IGSW. The potassium through feed helped in the maintenance of cellular structure of gills. In the first, second and third abdominal segments of the gut, increase in the height of epithelial cells was observed in shrimps grown in raw IGSW. On the intervention of potassium in the water, the histological architecture best recovered in treatments. However, the study indicated that histological structures are shown superior in the fortified water with fortified feed.Not Availabl
