Abstract
Effect of dietary Spirulina against cadmium chloride (CdCl2 ) on the kidney of the exposed catfish, Clarias batrachus was elucidated during sixty day experimewnt using 120 fishes with 5 treatment groups viz. T0 (control), T1 and T2 (4 mg 1-1 CdCl2 exposed), T3 and T4 (8 mg 1-1 CdCl2 exposed). . T0 , T1 and T3 were fed with normal diet, while T2 and T4 with 10% Spirulina platensis supplemented diet. Loosening of haemopoietic tissue, clustering of cells, necrosis of uriniferous tubules, vacuolated cytoplasm, expansion of Bowman’s Space, loss of original appearance of uriniferous tubules along with narrowing of the tubular lumen and damaged glomeruli were observed in T1 and T3 , while these were less severe in case of Spirulina supplemented fishes. Key words: Cadmium chloride, Clarias batrachus, histopathology, Spirulina platensis.
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