The present invention relates to a mixed feed for tuna, which satisfies the nutritional demand, and to a method for analyzing the growth of a tuna using the same. The mixed feed for tuna of the present invention has a composition ratio of 50 to 60% of the crude protein content, 15 to 20% of the crude lipid content, and 3 to 7% of the ash content, with respect to a dry matter.
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