INTRODUCTIONWith more than 30,000 known animal species, fish form the biggest group in the animal kingdom that is used for the production of animal-based foods. Only about 1000 of these species are commercially fished and used for food production. Fish is consumed as fresh fish or as frozen, salted, dried, smoked, or canned products (1). It constitute an important source of protein for many people throughout the world )2(.
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