Florescu Gune Iulia Elena, Georgescu Sergiu Emil, Dudu Andreea, Balaș Mihaela, Voicu Sorina, Grecu Iulia, Dediu Lorena, Dinischiotu Anca, Costache Marieta
Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 050095 Bucharest, Romania.
Department of Aquaculture, Environmental Sciences and Cadastre, Faculty of Environmental Science and Biotechnology, "Lower Danube" University of Galați, 800201 Galați, Romania.
Animals (Basel). 2021 Jan 4;11(1):76. doi: 10.3390/ani11010076.
is a critically endangered species due to the anthropic influence. It has been intensively captured for decades because of its high economic value, its roe being used in the caviar industry. Therefore, is intensively raised in fish farms for both conservation and economical purposes. Aquaculture aims to optimize the feeding regime of juveniles in order to improve its profitability. The purpose of this study was to investigate if can adapt to a starvation/refeeding regime by assessing the effects of this regime on oxidative stress biomarkers and antioxidant defense mechanisms in juveniles raised under aquaculture conditions. The juveniles were subjected to two regimes: a 7-day starvation period followed by 21 days of refeeding, respectively a 14-day starvation period followed by 21 days of refeeding. The results showed that both starvation/refeeding regimes induced an enhancement of antioxidant enzymes activities in the intestine of the juveniles. The oxidative damage was counteracted at the protein level. However, lipid peroxidation was significantly induced in the intestine of the juveniles subjected to 14/21-day starvation/refeeding regime. The 7/21-day starvation/refeeding regime proved to be more suitable for and therefore, it could be useful to optimize the feeding practice in aquaculture production.
由于人为影响，它是一种极度濒危物种。几十年来，由于其经济价值高，其鱼卵被用于鱼子酱产业，它一直被大量捕捞。因此，为了保护和经济目的，它在养鱼场中被密集养殖。水产养殖旨在优化幼鱼的投喂方式以提高其盈利能力。本研究的目的是通过评估这种饥饿/再投喂方式对水产养殖条件下幼鱼氧化应激生物标志物和抗氧化防御机制的影响，来调查[物种名称]是否能适应饥饿/再投喂方式。幼鱼被分为两种处理方式：分别是7天饥饿期后再投喂21天，以及14天饥饿期后再投喂21天。结果表明，两种饥饿/再投喂方式均诱导幼鱼肠道中抗氧化酶活性增强。在蛋白质水平上，氧化损伤得到了抵消。然而，在经历14/21天饥饿/再投喂处理的幼鱼肠道中，脂质过氧化显著增加。7/21天饥饿/再投喂方式被证明更适合[物种名称]，因此，它可能有助于优化水产养殖生产中的投喂实践。
