Abstract

Differences between factory and wild juvenile salmons (fingerlings at the 0+ age and 1+ parrs) in the content of physiologically significant fatty acids and their ratios are shown. Factory juveniles (age 0+ and 1+) have a very low content of physiologically significant 18:3n-3 and 20:4n-6 fatty acids when compared with wild individuals, whereas relatively high amounts of 22:6n-3 (age 0+) and 18:2n-6 fatty acids (age 1+) were noted. Simultaneously, the factory juveniles (age 0+ and 1+) differ from wild juveniles in a lower ratio of 18:3n-3/18:2n-6 essential fatty acids (by 7.9 and 6.4 times, respectively). The ratio of total polyunsaturated n-3/n-6 fatty acids is reliably equal in wild and factory fingerlings (age 0+), whereas it is 2 times lower in parrs than in factory fish. A relatively high content of oleic 18:1n-9 fatty acid and minor 20:1n-9, 22:1n-11 fatty acids are found in the factory juveniles, but the level of saturated fatty acids decreases due to 16:0 and 18:0. The high metabolic rate of fatty-acid metabolism in wild juveniles is evidenced by a higher ratio of 16:0/18:1n-9 compared to that in the factory fish (1.50 and 1.47 vs 0.84 and 0.46 for fingerlings (age 0+) and parrs (age 1+), respectively). The lower metabolic rate of fatty acid metabolism in factory juveniles, especially for parrs (age 1+), is accompanied by a high accumulation of their body mass (in fourfold) when compared with wild individuals of the same age.

中文翻译：

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大西洋鲑Salmo salar L的工厂和野生少年中脂质的脂肪酸组成比较特征。

摘要

显示了工厂化鲑鱼和野生鲑鱼（0岁以上和1岁以上的幼鱼）在生理上重要的脂肪酸含量及其比例之间的差异。与野生个体相比，工厂中的未成年人（0岁和1岁以上）具有非常低的生理上重要的18：3n-3和20：4n-6脂肪酸含量，而相对较高的22：6n-3（0岁年龄段）脂肪酸含量+）和18：2n-6脂肪酸（1岁以上）。同时，工厂中的少年（0岁和1岁以上）与野生少年的区别在于18：3n-3 / 18：2n-6必需脂肪酸的比率较低（分别为7.9和6.4倍）。野生和工厂鱼种（0岁以上）中总多不饱和n-3 / n-6脂肪酸的比率可靠地相等，而在幼鱼中则比工厂鱼低2倍。相对较高的油酸18：1n-9脂肪酸含量，次要的20：1n-9脂肪酸含量，工厂少年中发现22：1n-11脂肪酸，但是由于16：0和18：0，饱和脂肪酸的含量降低。与幼鱼（1.50和1.47相比，鱼种（0岁以上）为0.84和0.46）相比，野生少年中脂肪酸代谢的高代谢率由16：0/18：1n-9更高的比率证明。和pars（分别为1岁以上）。与同年龄的野生个体相比，工厂中幼鱼的脂肪酸代谢率较低，尤其是对幼龄者（1岁以上），其体重较高（四倍）。1n-9与工厂鱼相比（鱼种（0岁以上）和幼鱼（1岁以上）分别为1.50和1.47与0.84和0.46）。与同年龄的野生个体相比，工厂中幼鱼的脂肪酸代谢率较低，尤其是对幼龄者（1岁以上），其体重较高（四倍）。1n-9与工厂鱼相比（鱼种（0岁以上）和幼鱼（1岁以上）分别为1.50和1.47与0.84和0.46）。与同年龄的野生个体相比，工厂内幼鱼的脂肪酸代谢率较低，尤其是对幼龄（1岁以上）的幼年者，其体重较高（四倍）。