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首页> 外文期刊>Aquaculture International >Use of fresh vegetable discards as sea urchin diet: effect on gonad index and quality
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Use of fresh vegetable discards as sea urchin diet: effect on gonad index and quality

机译：使用新鲜蔬菜废弃物作为海胆饮食：对性腺指数和质量的影响

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摘要

This study evaluated the exploitation of unprocessed agricultural discards in the form of fresh vegetable leaves as a diet for the sea urchin Paracentrotus lividus through the assessment of their effects on gonad yield and quality. A stock of wild-caught P. lividus was fed on discarded leaves from three different species (Beta vulgaris, Brassica oleracea, and Lactuca sativa) and the macroalga Ulva lactuca for 3 months under controlled conditions. At the beginning and end of the experiment, total and gonad weight were measured, while gonad and diet total carbon (C%), nitrogen (N%), delta C-13, delta N-15, carbohydrates, lipids, and proteins were analyzed. The results showed that agricultural discards provided for the maintenance of gonad index and nutritional value (carbohydrate, lipid, and protein content) of initial specimens. L. sativa also improved gonadic color. The results of this study suggest that fresh vegetable discards may be successfully used in the preparation of more balanced diets for sea urchin aquaculture. The use of agricultural discards in prepared diets offers a number of advantages, including an abundant resource, the recycling of discards into new organic matter, and reduced pressure on marine organisms (i.e., macroalgae) in the production of food for cultured organisms.
机译：这项研究通过评估未加工的农业废料对性腺产量和品质的影响，评估了对未加工的农业废弃物以新鲜蔬菜叶的形式作为海胆Paracentrotus lividus饮食的开发。在受控条件下，将野生捕捞的野生豌豆的种群以三种不同物种（菜豆，芸苔和苜蓿）和大白花苜蓿的丢弃叶片上的叶片喂食3个月。在实验开始和结束时，测量了性腺总重量和性腺，而性腺和饮食中的总碳（C％），氮（N％），δC-13，δN-15，碳水化合物，脂质和蛋白质被测出分析。结果表明，农业丢弃物可维持初始标本的性腺指数和营养价值（碳水化合物，脂质和蛋白质含量）。紫苜蓿还改善了性腺颜色。这项研究的结果表明，丢弃的新鲜蔬菜可以成功地用于海胆水产养殖的更均衡日粮的制备。在准备好的饮食中使用农业废弃物具有许多优势，包括丰富的资源，将废弃物循环利用为新的有机物，以及在生产用于培养的生物的食物时减轻了海洋生物（即大型藻类）的压力。

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