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首页> 外文期刊>Marine biology >Differential utilization of biochemical components during larval development of the spider crab Maja brachydactyla (Decapoda: Majidae)
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Differential utilization of biochemical components during larval development of the spider crab Maja brachydactyla (Decapoda: Majidae)

机译:蜘蛛蟹Maja brachydactyla(Decapoda:Majidae)幼体发育过程中生化成分的差异利用

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摘要

Changes in lipid class, fatty acid, fat-soluble vitamins, amino acid and minerals were studied during larval development of Maja brachydactyla Balss, 1922 in order to provide information of its ontogeny and evaluate possible dietary deficiencies and constraints. Four different batches were analyzed from hatching to metamorphosis using enriched Artemia as food. Cultured larvae were in a good nutritional condition as confirmed by the continuous lipid accumulation throughout ontogeny. A regulation of polyunsaturated fatty acids (PUFA) occurred during development in order to maintain adequate basal levels of ω-3 fatty acids (likely through a retro conversion of C_(20) and C_(22) into C_(18) PUFA). Variations in the tocopherol levels indicated its possible role in PUFA protection against oxidation. Essential amino acid balance during development was not correlated with the Artemia feeding regime, but rather reflected inherent variations of the own species ontogeny. Larval requirements in essential minerals were fully supplied by the enriched Artemia.
机译:为了研究Maja brachydactyla Balss幼体的发育过程,在1922年研究了脂质种类,脂肪酸,脂溶性维生素,氨基酸和矿物质的变化,以提供其个体发育的信息并评估可能的饮食缺陷和限制条件。使用丰富的卤虫气作为食物,分析了从孵化到变态的四个不同批次。培养的幼虫处于良好的营养状态,这一点已通过整个个体发育过程中脂质的持续积累得以证实。为了维持足够的基础水平的ω-3脂肪酸,在开发过程中对多不饱和脂肪酸(PUFA)进行了调节(可能通过将C_(20)和C_(22)逆向转化为C_(18)PUFA)。生育酚水平的变化表明其可能在PUFA抗氧化保护中发挥了作用。发育过程中必需氨基酸的平衡与卤虫的摄食机制无关,而是反映了自身物种个体发育的固有变异。丰富的卤虫充分满足了必需矿物质中的幼虫需求。

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  • 来源
    《Marine biology》 |2010年第10期|p.2329-2340|共12页
  • 作者单位

    IRTA Sant Carles de la Rapita, Ctra. Poble Nou Km, 5.5.,43540 Sant Carles de la Rapita, Tarragona, Spain;

    IRTA Sant Carles de la Rapita, Ctra. Poble Nou Km, 5.5.,43540 Sant Carles de la Rapita, Tarragona, Spain;

    Institute de Acuicultura de Torre de la Sal (CSIC),12595 Ribera de Cabanes, Castellon, Spain;

    IRTA Sant Carles de la Rapita, Ctra. Poble Nou Km, 5.5.,43540 Sant Carles de la Rapita, Tarragona, Spain;

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