African catfish Clarias gariepinus

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Determining the safety and suitability of fluorescein dye for characterization of skin ulcerations in cultured Nile tilapia (Oreochromis niloticus) and African sharptooth catfish (Clarias gariepinus)

There is a need to identify the presence of lesions in fish skin as soon as they erupt. Fish skin lesions are either macroscopic (can be visualized by the naked eye) or microscopic (difficult to detect with the naked eye). Skin wounds resulting in loss of the epithelium (superficial or deep ulcers) are serious as they may interfere with osmoregulation and open portals for opportunistic pathogens. Herein, we report on the use of a fluorescein dye for the detection of skin ulcers that cannot be seen by the naked eye.

6p kethamoi1 20-11-2019 20 0 Download

Experimental exposure of African catfish Clarias Gariepinus (Burchell, 1822) to phenol: Clinical evaluation, tissue alterations and residue assessment

There is lack of information regarding; the toxicological and pathological consequences of phenol stressed Clarias gariepinus; as well as; the susceptibility of the stressed fish to disease occurrence. Static renewal bioassay was experimentally conducted to evaluate the toxic effects of phenol on the African catfish C. gariepinus. Ninety-six-hour acute toxicity tests revealed that the median lethal concentration of phenol (LC50) is 35 mg/L by immersion.

7p kethamoi1 17-11-2019 9 1 Download