孙秀俊,李琪

• 1:中国海洋大学海水养殖教育部重点实验室

摘要(Abstract)：

分析了6个不同盐度和5个培育密度对中国刺参和日本红刺参(Apostichopus japonicus)杂交幼体的生长、存活和附着的影响。盐度实验结果显示,受精后第5天,30和35盐度组幼体成活率最高,分别为46.7%和40.0%。第2天至第5天,30盐度组耳状幼体的生长最快,到第5天平均体长达到最大值672.18μm;30盐度组的幼体附着率最高,为17.8%,而15和20盐度组中均没有出现附着的稚参。培育密度实验结果显示,受精后第5天,0.1个/mL密度组的幼体成活率最高,为66.7%,但各密度组的幼体成活率差异均不显著。0.5个/mL密度组幼体生长最快,到第10天达到最大平均体长,为801.38μm;在所有培育密度实验组中,0.5个/mL密度组的幼体附着率最高,为19.1%。因此,为实现单位水体的苗种产量最大化,刺参杂交幼体培育的最佳盐度为30,最适宜的培育密度为0.5个/mL。

关键词(KeyWords)： Apostichopus japonicus;杂交;盐度;培育密度;生长

Abstract:

Keywords:

基金项目(Foundation): 山东省科技发展计划项目(2009GG10005013);; 国家科技支撑计划项目(2011BAD13B03)资助

作者(Author): 孙秀俊,李琪

DOI: 10.16441/j.cnki.hdxb.2012.s1.008

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