Energetic contribution of carbohydrates during starvation in common octopus (Octopus vulgaris)

Morillo-Velarde, Piedad S.; Valverde, Jesús Cerezo; Llinares, Rosa Maria Serra; Garcı́a, Benjamı́n Garcı́a

doi:10.1093/mollus/eyr018

Cited by 16 publications

(13 citation statements)

References 10 publications

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“…In this case, it can be estimated that lipids provided 26% of the daily energy of the animals during short‐term starvation, the rest supplied by other sources, e.g. proteins (Lee ) or carbohydrates (Morillo‐Velarde, Cerezo Valverde, Serra Llinares & García García ). In S. officinalis lipids provided 39.8% of the energy from the digestive gland during prolonged starvation (Castro et al .…”

Section: Discussionmentioning

confidence: 99%

Changes in lipid composition of different tissues of common octopus (Octopus vulgaris) during short-term starvation

et al. 2012

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In this work, we study the variations in concentration (mg 100 g−1 dry weight) and total content (mg individual−1) of different lipid classes in muscle and the digestive gland of Octopus vulgaris during an 8‐day starvation period. In all the samples analysed, polar lipids (PL) predominated in muscle (267.3–337.2 mg 100 g−1) compared with neutral lipids (66.9–104.7 mg 100 g−1). A significant positive tendency was observed in muscle for the content and concentration of monoglycerides as a consequence of starvation (P < 0.05). Furthermore, a higher cholesterol (CHO) content was detected in this tissue after the fourth day of starvation compared with the fed animals (P < 0.05). Neutral lipids predominated in the digestive gland (12 958–14 151 mg 100 g−1) compared with PL (3157–6517 mg 100 g−1), with triglycerides, free fatty acids and monoglycerides being the major lipid classes. The concentration of PL and monoglycerides showed a positive trend with starvation, while the triacylglycerol showed a negative tendency (P < 0.05). The results suggest that triglycerides and CHO are transported simultaneously from the digestive gland to the muscular tissues during starvation and the preferential use of PL and CHO during growth phases. It was estimated that lipids contributed 26% of the energy costs of the animals during starvation, mainly in the form of triglycerides from the digestive gland.

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Section: Discussionmentioning

confidence: 99%

Changes in lipid composition of different tissues of common octopus (Octopus vulgaris) during short-term starvation

et al. 2012

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“…There is a consensus that low values of DGI are related to malnourished or fasting animals (Castro, Garrido & Sotelo ; García‐Garrido et al . ; Morillo‐Velarde, Cerezo Valverde, Serra Llinares & García García ). However, in our study, there were animals with poor growth, but maintained a good DGI, regardless of dietary lipid level.These results rethink the usefulness of this index by itself and reinforce the need to accompany with digestive gland analysis.…”

Section: Discussionmentioning

confidence: 99%

Performance of formulated diets with different level of lipids and glutamate supplementation inOctopus vulgaris

et al. 2012

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Growth, feed efficiency and proximate and lipid class composition of subadults Octopus vulgaris (788 ± 133 g; 18.5°C) fed formulated diets of low lipid (LL: 8 g kg À1 ) and high lipid levels (HL: 84 g kg À1 ) and each one of these with three different levels of glutamate supplementation (0, 5 and 20 g kg À1 ) 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 weight day À1 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 20 g kg À1 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.

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“…The most recent research has focused on the development of an artificial diet, through understanding of nutritional needs (García-Garrido et al, 2010Morillo-Velarde et al, 2011, determining the nutritional information regarding total lipid and lipid classes (Cerezo Valverde et al, 2012) and protein and mineral content of marine species and meals intended for cephalopod feeding (Cerezo Valverde et al, 2013b. In this sense, various raw materials -other cephalopods Morillo-Velarde et al, 2012), fish (Estefanell et al, 2013; and crustacean species (Cerezo Valverde et al, 2008;Estefanell et al, 2013;Querol et al, 2014a); bindersalginate (Cerezo Valverde et al, 2008; and gelatin (Cerezo Valverde et al, 2008;Estefanell et al, 2013;; and raw material preparation -fresh (Cerezo Valverde et al, 2008); dried (Estefanell et al, 2013;Querol et al, 2013) or freezedried (Morillo-Velarde et al, 2012), were recently evaluated.…”

Section: Introductionmentioning

confidence: 99%

Performance of raw material thermal treatment on formulated feeds for common octopus (Octopus vulgaris) ongrowing

et al. 2015

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Energetic contribution of carbohydrates during starvation in common octopus (Octopus vulgaris)

Cited by 16 publications

References 10 publications

Changes in lipid composition of different tissues of common octopus (Octopus vulgaris) during short-term starvation

Changes in lipid composition of different tissues of common octopus (Octopus vulgaris) during short-term starvation

Performance of formulated diets with different level of lipids and glutamate supplementation inOctopus vulgaris

Performance of raw material thermal treatment on formulated feeds for common octopus (Octopus vulgaris) ongrowing

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