Effect of an artificial diet on early spat growth of the Japanese pearl oyster Pinctada fucata martensii.
Effect of an artificial diet on early spat growth of the Japanese pearl oyster Pinctada fucata martensii.
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人工饲料对日本珍珠贝 Pinctada fucata martensii 早期卵生长的影响。
DOI：
10.1046/j.1444-2906.2002.00446.x
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发表时间：
2002
影响因子：
1.9
通讯作者：
K. Numaguchi
中科院分区：
文献类型：
--
作者：
K. Numaguchi
在低密度藻饲料中添加5¥ 103和2¥ 104粒/mL的微胶囊FISHERIES SCIENCE 695，可显著（P< 0.01）促进珍珠母贝的生长。但是，高浓度（1¥ 105粒/mL/d）的明胶-阿拉伯胶微胶囊对珠母贝的生长有抑制作用，说明在低浓度的海藻饵料中添加明胶-阿拉伯胶微胶囊对珠母贝的生长有促进作用。Numaguchi和Nell对悉尼岩牡蛎幼虫的生长速度也得到了类似的结果，这些牡蛎幼虫被喂食明胶-阿拉伯胶微胶囊和低密度藻类饲料。在他们的实验中，明胶-阿拉伯胶微胶囊含有鱼肝油，其富含不饱和脂肪酸（C22：6 n3和C20：5 n3）。14以前已经证明，长链不饱和脂肪酸是牡蛎幼虫和幼体生长的非常重要的必需脂肪酸。5，15，16本研究的结果表明，珍珠牡蛎的生长也需要不饱和脂肪酸。然而，观察到过量的明胶-阿拉伯胶微胶囊抑制珍珠牡蛎苗的生长。据认为，高浓度的明胶-阿拉伯胶微胶囊可能会抑制珍珠的摄入
Artificial diet of pearl oyster spat FISHERIES SCIENCE 695 of microcapsules at 5¥ 103 and 2¥ 104 particles/mL per day to the low-density algal diets produced a significant (P< 0.01) improvement in the growth of pearl oyster spat. However, the high-density supplementation of gelatin–acacia microcapsules (1¥ 105 particles/mL per day) inhibited the growth of the pearl oyster spat.These results show that supplementing the lowdensity algal diet with gelatin–acacia microcapsules enhances the growth of the pearl oyster spat. Numaguchi and Nell have obtained similar results for the growth rate of Sydney rock oyster larvae that were fed gelatin–acacia microcapsules with a low-density algal diet. 14 In their experiment, the gelatin–acacia microcapsules contained cod liver oil, which is rich in unsaturated fatty acids (C22: 6n3 and C20: 5n3). 14 It has been demonstrated previously that longchain unsaturated fatty acids are very important essential fatty acids for the growth of oyster larvae and spat. 5, 15, 16 The results of the present study indicate that pearl oyster spat also require unsaturated fatty acids for their growth. However, it was observed that excess gelatin–acacia microcapsules inhibited the growth of the pearl oyster spat. It is thought that high concentrations of gelatin–acacia microcapsules may inhibit ingestion by the pearl