三倍体不会降低驼背大麻哈鱼（Oncorhynchus gorbuscha）鱼片中欧米伽-3脂肪酸（二十碳五烯酸和二十二碳六烯酸）的含量。
Triploidy does not decrease contents of eicosapentaenoic and docosahexaenoic acids in filets of pink salmon Oncorhynchus gorbuscha.
作者信息
Gladyshev Michail I, Artamonova Valentina S, Makhrov Alexander A, Sushchik Nadezhda N, Kalachova Galina S, Dgebuadze Yury Y
机构信息
Institute of Biophysics of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russia; Siberian Federal University, Svobodny av. 79, Krasnoyarsk 660041, Russia.
A. N. Severtsov Institute of Ecology and Evolution of Russian Academy of Sciences, Leninsky Prospect, 33, Moscow 119071, Russia.
出版信息
Food Chem. 2017 Feb 1;216:66-9. doi: 10.1016/j.foodchem.2016.08.021. Epub 2016 Aug 9.
Triploid fish has become an important item of commercial aquaculture, but data on its fatty acid (FA) composition are still controversial, especially regarding essential polyunsaturated fatty acids, eicosapentaenoic acid (20:5n-3, EPA) and docosahexaenoic acid (22:6n-3, DHA). We studied FA composition and content of diploid and triploid pink salmon Oncorhynchus gorbuscha, reared in aquaculture in a bay of the White Sea (Russia). FA composition, measured as percentages of total FA of triploids and immature diploid females significantly differed from that of mature diploid fish. Specifically, mature diploids had higher percentage of EPA and DHA in their muscle tissue (filets) compared to that of triploids and immature diploid females. Nevertheless, the contents of EPA and DHA per mass of the filets in diploid and triploid specimens were similar. Thus, no special efforts are needed to improve EPA and DHA contents in filets of triploids.
三倍体鱼类已成为商业水产养殖的重要品种，但有关其脂肪酸（FA）组成的数据仍存在争议，尤其是在必需多不饱和脂肪酸、二十碳五烯酸（20:5n-3，EPA）和二十二碳六烯酸（22:6n-3，DHA）方面。我们研究了在俄罗斯白海一个海湾的水产养殖环境中饲养的二倍体和三倍体细鳞大麻哈鱼（Oncorhynchus gorbuscha）的脂肪酸组成和含量。三倍体和未成熟二倍体雌鱼的脂肪酸组成（以总脂肪酸的百分比衡量）与成熟二倍体鱼显著不同。具体而言，与三倍体和未成熟二倍体雌鱼相比，成熟二倍体鱼的肌肉组织（鱼片）中EPA和DHA的百分比更高。然而，二倍体和三倍体样本每质量鱼片的EPA和DHA含量相似。因此，无需特别努力来提高三倍体鱼片的EPA和DHA含量。
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