養殖ハマチの血清成分におよぼす取扱いの影響

概要

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Three types of handling and their respective effect on serum constituents in yellow-tail (Seriola quinqueradiata) fed on raw fish or a compounded diet were examined. Among the three types of handling, the angled and immediately examined fish had the largest relative spleen weight, the lowest levels of many of the serum constituents, with the least individual variations in those measurements. In the forced to exercise severely, the relative spleen weight reduced to about 50%, serum levels of glucose and magnesium increased to 280% and the levels of other serum constituents increased up to 120 to 130% when compared to those angled. In the transported type the levels of most of the serum constituents lay intermediate with the largest individual variations. The responses to handling of fish fed on a compounded diet were dull in con-trast with fish fed on raw fish. To obtain trustworthy values in such a sensitive fish as yellow-tail, it is desirable to sample the blood by severing the caudal artery as immediately as possible after angling.
日本水産學會の論文