Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling FK9 4LA, United Kingdom; Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Shantou University, Shantou 515063, China.
Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling FK9 4LA, United Kingdom.
Food Chem. 2024 Oct 30;456:139414. doi: 10.1016/j.foodchem.2024.139414. Epub 2024 Apr 22.
Atlantic salmon were fed either a diet reflecting current commercial feeds with added oil supplied by a blend of fish oil and rapeseed oil (COM), or a diet formulated with oil from transgenic Camelina sativa containing 20% EPA + DHA (TCO). Salmon were grown from smolt to market size (>3 kg) in sea pens under semi-commercial conditions. There were no differences in growth, feed efficiency or survival between fish fed the TCO or COM diets at the end of the trial. Levels of EPA + DHA in flesh of salmon fed TCO were significantly higher than in fish fed COM. A 140 g fillet from TCO-fed salmon delivered 2.3 g of EPA + DHA, 67% of the weekly requirement level recommended by many health agencies, and 1.5-fold more than the 1.5 g of EPA + DHA for COM-fed fish. Oil from transgenic Camelina supported growth and improved the nutritional quality of farmed salmon in terms of increased "omega-3" supply for human consumers.
大西洋鲑鱼被喂食了两种饲料，一种是反映当前商业饲料的配方，添加了鱼油和菜籽油的混合物（COM），另一种是用含有 20% EPA+DHA 的转基因荠蓝油（TCO）配制的饲料。鲑鱼在半商业条件下的海笼中从幼鱼养殖到市场规模（>3 公斤）。在试验结束时，食用 TCO 或 COM 饲料的鱼在生长、饲料效率或存活率方面没有差异。食用 TCO 的鲑鱼肉中的 EPA+DHA 水平明显高于食用 COM 的鱼。从 TCO 喂养的鲑鱼的 140 克鱼片可提供 2.3 克 EPA+DHA，这是许多健康机构推荐的每周需求量的 67%，比食用 COM 喂养的鱼的 1.5 克 EPA+DHA 多 1.5 倍。转基因荠蓝油支持生长，并提高了养殖鲑鱼的营养质量，为人类消费者增加了“欧米伽 3”的供应。
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