The protective role of iodine and MS-222 against stress response and bacterial infections during Nile tilapia (Oreochromis niloticus) transportation

Abstract Fish transportation is a regular farming and experimental practice that mainly results in stress conditions may extend to induce high mortality rate. In the present simulation, Oreochromis niloticus were transported for 2 h maintained another 6 containers assess effect of tranquilization with tricaine methanesulfonate (MS-222) and/or addition iodine on rate restoring normal physiological functions. Experimental fish divided into four groups: group 1 (control) was farm water without MS-222 or iodine, (2) supplemented 40 mg/L MS-222, (3) + 10 ppm (4) containing iodine. Blood samples collected determination serum cortisol glucose, while skin mucus assaying lysozyme, peroxidase antibacterial activity; cumulative rate; food reflexes which assessed at 0 h, 48 7 days 14 post transportation. The indicated treatment mitigated condition associated accelerate restoration immunological status. So, it recommended use as tranquillizer together an antiseptic during O. .