Figure 3. Gross examination of Nile tilapia infected with Columnaris disease, pre- and post-treatment with fucoidan. A) An infected fish showing an ulcerated and haemorrhagic external surface (1) and eroded tai-fin (2). B) An infected fish showing pale gills (3). C) An infected fish showing body stiffness/rigidity and eroded tai-fin (2). D) An infected treated fish showing normal external surface, body figure/elasticity, and fins

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Can Fucoidan Decrease the Mortalities Caused by Columnaris Disease in Nile Tilapia?

Hebatallah Ahmed Mahgoub

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