Protective Effects of Sanyar Prebiotic on Immunity and Tissue Changes of Common Carp (Cyprinus carpio) Exposed to CuSO₄ Stress

Figure 4

Tissue section prepared from fish liver exposed to copper sulfate (H&E, bar = 40 μm, ×400). C1: control group fed basal diet and arrowheads: normal hepatocytes (a) and central vein (b). C2: P2 treatment fed with Sanyar supplement and arrowheads: normal hepatocytes (a) and central vein (b).