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首页> 外文期刊>Aquaculture Research >Performance of formulated diets with different level of lipids and glutamate supplementation in Octopus vulgaris
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Performance of formulated diets with different level of lipids and glutamate supplementation in Octopus vulgaris

机译：章鱼不同脂质和谷氨酸水平的配方饮食的性能

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摘要

Growth, feed efficiency and proximate and lipid class composition of subadults Octopus vulgaris (788 +/- 133g; 18.5 degrees C) fed formulated diets of low lipid (LL: 8gkg(-1)) and high lipid levels (HL: 84gkg(-1)) and each one of these with three different levels of glutamate supplementation (0, 5 and 20gkg(-1)) were compared. All the animals accepted the diets with a survival of 100%. The addition of glutamate did not stimulate feeding rates in any of the assays (2.48-2.64 and 1.86-2.01%Body weightday(-1) for LL and HL, respectively; P>0.05). The best growth, feed efficiency and protein productive value were observed in the groups fed 5 or 20gkg(-1) glutamate supplementation at both lipid levels, with significant differences for LL diet (P<0.05). A better feed efficiency was achieved with the HL diet (14.6-27.5% vs. 2.5-19.2% for LL diet). There were no significant differences in the proximate composition of carcass (animal excluding the digestive gland). However, a substantial amount of lipids accumulated in the digestive gland, mainly triglycerides, was detected as a consequence of higher lipid ingestion or glutamate supplementation. It was notable the lower percentages of phosphatidylethanolamine and phosphatidylcholine in the digestive gland of animals with best growth.
机译：饲喂低脂（LL：8gkg（-1））和高脂水平（HL：84gkg（-）的日粮的寻常成年章鱼（788 +/- 133g; 18.5摄氏度） 1）），并分别比较了三种不同水平的谷氨酸补充剂（0、5和20gkg（-1））。所有的动物都接受饮食，存活率为100％。在任何试验中，添加谷氨酸盐均不会刺激进食率（LL和HL分别为2.48-2.64和1.86-2.01％Body weightday（-1）; P> 0.05）。在两个脂质水平下补充5或20gkg（-1）谷氨酸补充的组中观察到最佳的生长，饲料效率和蛋白质生产价值，LL日粮具有显着差异（P <0.05）。 HL日粮具有更好的饲料利用率（14.6-27.5％，而LL日粮为2.5-19.2％）。 car体（不包括消化腺的动物）附近的组成没有显着差异。然而，由于较高的脂质摄入或补充谷氨酸，在消化腺中积累了大量的脂质，主要是甘油三酸酯。值得注意的是，具有最佳生长的动物的消化腺中磷脂酰乙醇胺和磷脂酰胆碱的百分比较低。

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