Fig. 4From: Skin histopathological responses of Oreochromis niloticus (Nile tilapia) to transportation in water with and without saltPhotomicrograph of skin tissue section from O. niloticus control group (A magnified in B (A, selected square)) showed normal epidermal layer, the dominating goblet (mucous) cells (black arrows), basal lamina of epidermal layer (white arrow), and the fine CT fibers (star) were all stained positively with PAS. The bar size was indicated under picturesBack to article page