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首页> 外文期刊>Aquaculture Research >Growth, food intake, protein retention and fatty acid profile in Octopus vulgaris (Cuvier, 1797) fed agglutinated moist diets containing fresh and dry raw materials based on aquaculture by-products.
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Growth, food intake, protein retention and fatty acid profile in Octopus vulgaris (Cuvier, 1797) fed agglutinated moist diets containing fresh and dry raw materials based on aquaculture by-products.

机译：章鱼（Cuvier，1797年）的凝集，潮湿饮食含有水产养殖副产品的新鲜和干燥原料，其生长，食物摄入，蛋白质保留和脂肪酸谱。

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The lack of specific compound diets for cephalopods is limiting the industrial development of some species. In this study, four agglutinated moist diets were tested in individually reared Octopus vulgaris (979+or-151 g) for 8 weeks. All diets were based on bogue Boops boops, accidentally reared in fish farms (aquaculture by-product), and agglutinated with alginate and calcium. One diet was based exclusively on bogue fillets, two on bogue fillets complemented with meat from two crab species (Portunus pelagicus, Grapsus grapsus) and the last one on bogue and G. grapsus meals. As a control diet, bogue and P. pelagicus were supplied fresh on alternate days. All diets induced similar feed intake (2.1-2.6% day-1). However, the meal-based diet induced negative growth in comparison with the control and the other agglutinated diets (0.80-0.85% day-1). Higher lipid content in agglutinated diets (28-30% dw) in comparison with the control diet (16% dw) led to higher protein retention in muscle. These results underline the inadequacy of traditional meals in diets for cephalopods and that the inclusion of crab meat did not increase feeding rates and growth in O. vulgaris. The dietary fatty acid, with high levels of oleic and linoleic acid and low levels of ARA, clearly reflected in digestive gland, while only decreasing ARA and increasing EPA levels were observed in muscle, with no apparent negative effect on growth.
机译：头足类动物缺乏特定的复合饮食限制了某些物种的工业发展。在这项研究中，在单独饲养的八达通（979+或-151 g）中测试了四种凝集的潮湿饮食，持续8周。所有饮食均以牛油B为基础，意外地在养鱼场饲养（水产养殖副产品），并用藻酸盐和钙进行凝集。一种饮食仅以博格鱼片为基础，两种以博格鱼片为食，辅以两种蟹类（Portunus pelagicus，Grapsus grapsus）的肉，最后一种以博格和G. grapsus餐食为主。作为对照饮食，每天隔几天新鲜供应博格和远洋疟原虫。所有日粮诱导的采食量相似（每天 -1 为2.1-2.6％）。然而，与对照和其他凝集日粮相比（0.80-0.85％day -1 ），基于膳食的日粮诱导了负增长。与对照饮食（16％dw）相比，凝集饮食（28-30％dw）中较高的脂质含量导致肌肉中蛋白质保留更高。这些结果强调了头足类食物中传统膳食的不足，蟹肉的添加并没有增加寻常型油菜的摄食率和生长。日粮中脂肪酸含量高，油酸和亚油酸含量高，ARA含量低，在消化腺中明显反映出来，而肌肉中仅观察到ARA降低和EPA含量升高，而对生长没有明显的负面影响。

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