Blue and Red Light Color Combinations Can Enhance Certain Aspects of Digestive and Anabolic Performance in Juvenile Steelhead Trout Oncorhynchus mykiss
Blue and Red Light Color Combinations Can Enhance Certain Aspects of Digestive and Anabolic Performance in Juvenile Steelhead Trout Oncorhynchus mykiss
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蓝色和红色光的颜色组合可以增强虹鳟幼鱼消化和合成代谢性能的某些方面
DOI：
10.3389/fmars.2022.853327
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发表时间：
2022-05
影响因子：
3.7
通讯作者：
Shuanglin Dong
中科院分区：
文献类型：
--
作者：
Xueweijie Chen;Yangen Zhou;Jinze Huang;Dong An;Li Li;Yunwei Dong;Qinfeng Gao;Shuanglin Dong
光谱随着太阳高度的变化而变化，在清澈的水中呈现出不同的光色。在本研究中，我们旨在研究幼年硬头鳟Oncorhynchus mykiss（初始重量34.67 ± 2.69 g）在不同光色条件下的反应。在 16 周内评估了不同蓝光和红光组合对鳟鱼血浆生化参数、消化酶活性和 RNA/DNA 比率的影响。 6 个处理被随机分配到 24 个水箱中，每个处理有 4 个重复：150 lx 的恒定光强度：12 小时白光，然后 12 小时黑暗（12W）； 12 小时蓝光，然后 12 小时黑暗 (12B)； 12 小时红灯，然后 12 小时暗（12R）； 1.5小时蓝光，9小时红光，1.5小时蓝光，然后12小时黑暗（3B9R）； 3小时蓝光，6小时红光，3小时蓝光，然后12小时黑暗（6B6R）；蓝光和红光照射 12 小时，然后黑暗 12 小时 (T12BR)。暴露在3B9R光环境下的鱼血浆总蛋白（TP）水平显着升高，中肠脂肪酶、胰蛋白酶和胃脂肪酶活性增强；与其他处理中的鱼相比，肝脏和肌肉组织中的 RNA 含量增加，以促进蛋白质合成效率，从而改善消化和合成代谢性能。这表明硬头鳟鱼在长期进化过程中已经很好地适应了这种变化的光照条件。相比之下，暴露在6B6R光环境下的鳟鱼血浆葡萄糖、TP和甘油三酯水平显着降低，胃肠道消化酶活性降低，肌肉和肝脏的蛋白质合成能力降低，导致消化和合成代谢性能减弱。此外，尽管暴露在12R光环境下的鱼的RNA含量和RNA/DNA比率较高，但观察到相对较高的血浆胆固醇和甘油三酯水平，这可能表明氧化应激。因此，这种光不适合长期栽培。总之，3B9R处理是测试的最佳光照条件，可用于改善硬头鳟鱼的消化和合成代谢性能。
The light spectrum varies with the altitude of the sun and shows different light colors in clear water. In this study, we aimed to investigate the response of juvenile steelhead trout Oncorhynchus mykiss (34.67 ± 2.69 g initial weight) under different light color conditions. The effects of different blue and red light combinations on plasma biochemical parameters, digestive enzyme activity, and RNA/DNA ratio were assessed in trout over 16 weeks. Six treatments were randomly assigned to 24 tanks with four replicates per treatment: a constant light intensity of 150 lx: 12 h white light then 12 h dark (12W); 12 h blue light then 12 h dark (12B); 12 h red light then 12 h dark (12R); 1.5 h blue light, 9 h red light, 1.5 h blue light, then 12 h dark (3B9R); 3 h blue light, 6 h red light, 3 h blue light, then 12 h dark (6B6R); and 12 h of both blue and red light then 12 h dark (T12BR). Fish exposed to the 3B9R light environment showed significantly increased plasma levels of total protein (TP), enhanced activities of midgut lipase, trypsin, and gastric lipase; and increased RNA content in the liver and muscle tissue to promote protein synthesis efficiency, thereby improving digestive and anabolic performance compared to fish in the other treatments. This indicates that steelhead trout have adapted well to such variable light conditions during long-term evolution. In contrast, trout exposed to the 6B6R light environment showed significant reductions in plasma glucose, TP, and triglyceride levels, decreased activity of gastrointestinal digestive enzymes, and reduced protein synthesis capacity in the muscle and liver, resulting in weakened digestive and anabolic performance. Furthermore, despite the high RNA content and RNA/DNA ratio in fish exposed to a 12R light environment, relatively high plasma cholesterol and triglycerides levels were observed, which might indicate oxidative stress. Therefore, this light is not considered suitable for long-term cultivation. In conclusion, the 3B9R treatment was the optimal light condition tested and can be used to improve the digestive and anabolic performance of steelhead trout.
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影响因子：
4.3
作者：
Mertens KL;Kalsbeek A;Soeters MR;Eggink HM
通讯作者：
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影响因子：
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