Fig. 5

Photomicrograph of histological sections on the kidneys of Nile tilapia (Oreochromis niloticus). The kidneys of Oreochromis niloticus exposed to low concentration (5%) of JA-NE (a) and high concentration (10%) of JA-NE (b), showing peritubular hemorrhage and peritubular infiltration by mononuclear inflammatory cells (black arrow), some renal tubules showing necrobiotic changes (red arrow). Hematoxylin and Eosin stain, scale bar: 50 µm (X400).