Kidneys are the major parts of excretion in the body of fish (animals). Some pathogens like Aeromonas hydrophila affect kidney and destroy the cells of kidney and the normal colour of the kidney. Rohu fish grown in biofloc for 120 days were dissected to observe the changes in the kidneys, after infecting with Aeromonas hydrophila. The dissected kidneys were collected observed for abnormalities in the affected kidneys of rohu. Void spaces, attrophy, inflammation, tubular infection, glomerular abnormality and heavy infiltration of bacteria of have been observed. Higher concentration of bacteria shown more infection and death of rohu fish.
Keywords: Aeromonas hydrophila, Bacteria, Infiltration, Rohu, kidney cells, pathogen
