Fish in group II were exposed to 0.65 mg L−1 of CdCl2. The experiments were conducted in plastic tanks containing 100 L of test water, which was renewed daily. The physicochemical parameters were maintained within normal range (pH 6.9–7.3, dissolved oxygen 6.2–7.3 mg L−1, and temperature 25 ± 2 °C) [21]. Experimental Cd exposure was carried out for 28 days.