A feeding trial was carried out to evaluate the effects of dietary on growth of juvenile sea cucum‐ber A postichopus j aponicus .Juvenile sea cucumber weighing 2 .5 g to 3 .5 g was stocked into 70 L plastic tanks for 60 days and fed sea weeds Sargassum thunbergii ,Sargassum pallidum ,Enteromorpha prolif‐ra ,Purslane herb ,Sargassum f usiforme(Harv .) setch ,Ulva lactucal ,Thallus laminariae ,and a com‐mercial feed . The best artificial ingredients of these plants were defined by the body length , specific growth ratios (SGR) ,weight growth(WG) ,apparent protein digestibility (ADC) and food conversation ratio (FCR) after feeding sea cucumber .The results showed that the order of body length of juvenile sea cucumber was expressed as :S .thunbergii > kelp > 200 mesh E .prolif ra> S .pallidum > P .herb >U .lactuca > 400 mesh E .prolifra (without mud ) > S . fusiforme(Harv .) Setch .> 400 mesh E . prolifra,difference of some groups were very significant (P< 0 .01).The better growth‐promoting effects of these plants to sea cucumber were S .thunbergii ,U .lactucaand E .prolif ra ,according to these different promoting indicators like SGR ,WG ,ADC and FCR .These values were significant (P <0 .05) . S .thunbergii had the best apparent protein digestibility ,the worst S .fusiforme(Harv .) Setch .There‐fore ,S .thunbergii ,S .pallidum ,E .prolifra,and U .lactucawere more beneficial to the growth of sea cucumber ,w hich can be used for the preparation of artificial juvenile sea cucumber feed .%使用鼠尾藻、亨氏马尾藻、石莼、浒苔、马齿苋、羊栖菜、海带等7种植物源单独投喂仿刺参幼参，一种商品饲料作为对照组，各试验设3个平行，每平行20头幼参（体质量2．5～3．5g／头），试验周期60 d ，之后通过对比体长、特定生长率、质量平均增加率、蛋白质表观消化率、存活率、饲养水质等指标，得出可能适宜作为幼参人工配合饵料的配料成分。试验结果表明，以体长为考核指标，各种植物源对其影响依次为：马尾藻＞海带＞200目浒苔粉＞鼠尾藻＞马齿苋＞石莼粉＞400目浒苔粉＞羊栖菜＞添加海泥400目浒苔，部分组别之间差异极显著（ P＜0．01）；以幼参特定生长率、质量平均增加率、表观消化率、饵料系数为考核指标时，鼠尾藻、马尾藻、石莼、浒苔各项数值优于其他植物源，差异显著（P＜0．05）；马尾藻的蛋白质表观消化率高于其他植物源，羊栖菜的表观消化率值最低；浒苔、石莼、鼠尾藻、马尾藻较其他植物源更有利于幼参生长，可作为幼参人工配合饲料组分。
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