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Nutritional requirement that helps the immune system of the fish.

Sagot :

Answer:

Oily fish like salmon, king mackerel, cod, tuna are good sources of vitamin A. B Vitamins – B vitamins such as B2, B6 and B12 all help keep the immune system working properly by regulating inflammation while promoting red and white blood cell development to keep the oxygen flowing while fighting against disease

Explanation: