マサバ幼魚の食餌利用に関する実験的研究(続報)

概要

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The young mackerel were reared in a tank, fed with the known amounts of the anchovy and Euphausia. The ration and the daily growth were obtained for each individual mackerel. (1) The relation between the ration and the daily growth can be expressed as a linear regression within the practical applications for the estimation of food consumption by the mackerel in nature. (2) Under nearly the same sizes and the same temperatures, the anabolic rates of the mackerel in the case of giving the anchovy for food showed 0.23 to 0.30 (or 0.41 to 0.54 on calorie base) and those in the euphausid 0.17 to 0.22 (or 0.34 to 0.44 on calorie base).Thus, the former were higher than the latter. (3) The decreasing rate of the anabolic rates in accordance with the unit growth of the mackerel was 0.0100 in the case of feed with the anchovy, while it was 0.0095 in the case of the euphausid. Therefore, the hypothesis used in the previous report2) that the decreasing rates of the anabolic rates are pararell between the two kinds of food, the anchovy and the euphausid, can be admitted.
公益社団法人日本水産学会の論文