Seasonally changing metabolism in Atlantic salmon (Salmo salar L.) II –β‐oxidation capacity and fatty acid composition in muscle tissues and plasma lipoproteins
Seasonally changing metabolism in Atlantic salmon (Salmo salar L.) II –β‐oxidation capacity and fatty acid composition in muscle tissues and plasma lipoproteins
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大西洋鲑鱼（Salmo salar L.）II -β-氧化能力和肌肉组织和血浆脂蛋白中的脂肪酸组成的季节性变化
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
G. Hemre
中科院分区：
文献类型：
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作者：
U. Nordgarden;B. Torstensen;L. Frøyland;T. Hansen;G. Hemre
为了阐明未成熟大西洋鲑（萨尔莫salar L.）在海水中，一组在模拟自然光下饲养，而一组在连续光下饲养。血浆脂蛋白中的脂肪酸谱在实验期间没有变化，而β-氧化能力在春季随着温度的降低而增加。同时，肌肉组织中单不饱和脂肪酸（MUFA）的相对水平下降（42-36%）。肌肉中饱和脂肪酸的含量在早春低（19%），但随后缓慢增加，而肌肉中多不饱和脂肪酸的含量在春季增加（从36%增加到39%）。有人建议，增加春季生长和随之而来的能量需求得到满足，增加脂质氧化，其中单不饱和脂肪酸作为能源基板的首选。
With the aim of elucidating seasonally changing lipid metabolism in immature Atlantic salmon (Salmo salar L.) in sea water, one group was reared under simulated natural light, while one group was reared under continuous light. Fatty acid profile in plasma lipoproteins did not vary during the experiment, while β-oxidation capacity increased during spring, concurrent with decreasing temperatures. Simultaneously, the relative level of monounsaturated fatty acids (MUFA) in muscle tissue decreased (42–36%). Muscle levels of saturated fatty acids were low during early spring (19%), but then increased slowly, and muscle levels of polyunsaturated fatty acids increased during spring (from 36% to 39%). It is suggested that increased spring growth and the concomitant energy demand was met by increased lipid oxidation, where MUFA were preferred as energy substrate.