半滑舌鳎受精卵、卵黄囊仔鱼和开口仔鱼氨基酸及脂肪酸的变化

被引：15

作者：

常青 ^{[1
]}

梁萌青 ^{[1
]}

陈四清 ^{[1
]}

张汉华 ^{[2
]}

王家林 ^{[1
]}

张秀梅 ^{[3
]}

机构：

[1] 中国水产科学研究院黄海水产研究所农业部海洋渔业资源可持续利用重点开放实验室

[2] 中国水产科学研究院水产种质资源与养殖技术重点开放实验室

[3] 中国海洋大学生命科学与技术学部

来源：

水生生物学报 | 2007年 / 06期

关键词：

半滑舌鳎; 氨基酸组成; 脂肪酸组成; 卵; 仔鱼;

D O I：

暂无

中图分类号：

S917.4 [水产动物学];

学科分类号：

摘要：

采用气相色谱仪和氨基酸分析仪测定了半滑舌鳎(Cynoglossus semilaevis)受精卵、卵黄囊仔鱼和开口仔鱼的氨基酸与脂肪酸组成的变化。结果表明:总氨基酸组成在受精卵和卵黄囊仔鱼之间变化明显,但是在卵黄囊仔鱼和开口仔鱼之间只有细微的变化。开口仔鱼与其摄食的轮虫的总必需氨基酸组成相关。受精卵、卵黄囊仔鱼、开口仔鱼的游离氨基酸含量分别为139 mg/g、3.6 mg/g和2.5 mg/g,占总氨基酸含量的22.3%、3.6%和2.5%。饱和脂肪酸的总量从受精卵到卵黄囊仔鱼明显下降,但是发育到开口仔鱼含量无显著变化。单不饱和脂肪酸和多不饱和脂肪酸的总量在不同发育阶段无显著变化,而EPA和DHA的含量从卵黄囊仔鱼到开口仔鱼有明显下降。这表明在早期发育阶段半滑舌鳎主要利用饱和脂肪酸作为能量代谢的基质,对饱和脂肪酸的利用程度大于单不饱和脂肪酸和多不饱和脂肪酸。半滑舌鳎似乎需要长链的多不饱和脂肪酸如EPA、DHA和ARA。

引用

页码：767 / 773

页数：7

共 46 条

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