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Requirement of Japanese flounder for dietary calcium

机译：日本膳食钙的日本比目鱼要求

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摘要

Juvenile Japanese flounder, Paralichthys olivaceus, with initial mean body weight of 0.38g were fed semi-purified diets supplemented with different levels (0, 0.1, 0.25, 0.4, 0.6%) of calcium (Ca) for 10 weeks. Growth was lowest in the fish fed a Ca unsupplemented diet. Dietary Ca supplements of 0.1 and 0.25% significantly increased the growth. Further increment of a dietary Ca supplement up to 0.6% could not proportionally increase the growth and rather tended to decrease the growth. Feed efficiency and condition factor of the fish also:were significantly improved by a dietary Ca supplementation. Ca and phosphorus contents of the vertebrae were similar in all the treatment groups and did not appear to be suitable indicators of Ca requirement in this species. It appears that a Ca supplement of 0.1-0.25% in a semi-purified diet is necessary for juvenile Japanese flounder.
机译：少年日本比目鱼，Paralichthys Olivaceus，初始平均体重为0.38g，喂食分半纯化的饮食，其补充有不同水平的钙（0,0.1,0.25,0.4,0.6％）10周。 在喂养CA Unsplemented饮食中的鱼类中增长最低。 膳食CA补充剂为0.1和0.25％显着增加了增长。 膳食CA补充的进一步增量高达0.6％不能比例地增加生长，而且往往会降低增长。 鱼类的饲料效率和条件因子也通过膳食CA补充显着改善。 所有治疗组的椎骨的Ca和磷含量相似，并且在该物种中没有似乎是Ca要求的适当指标。 似乎在半纯化的饮食中的Ca补充剂为0.1-0.25％，对于少年日本比目鱼来说是必要的。

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