Tuna cultured fish and its use, and production method of tuna cultured fish

摘要

Provided are a tuna cultured fish having a low selenium content and a method for raising the same, a processed food for a tuna cultured fish having a low selenium content, and a method for producing the same. Tuna cultured fish, processed heat food containing the edible part and edible part, having either one of muscle having a selenium content of 90 μg or less per 100 g and a liver having a selenium content of 1400 μg or less per 100 g A fish meal composed of 30% by weight or more of sardine fish meal, and an encapsulant containing fats and oils, and an outer skin that encloses the encapsulate and is composed of at least one substance selected from the group consisting of proteins and polysaccharides; A breeding method comprising continuously feeding the compounded feed comprising at least 30 days.