Nucleic acids and fatty acids of the common octopus, Octopus vulgaris, in relation to the growth rate

Miliou, Helen; Fintikaki, Myrsini; Kountouris, Triantaphyllos; Tzitzinakis, Marios; Verriopoulos, G.

doi:10.1111/j.1365-2109.2006.01613.x

Cited by 8 publications

(4 citation statements)

References 45 publications

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“…Indeed, a decrease on lipid content associated to increasing size was also observed in wild and reared O. vulgaris (Navarro and Villanueva 2003; Biandolino et al 2010). Main fatty acids in octopus muscle are in agreement with previous data (Navarro and Villanueva 2003; Rosa et al 2004; Miliou et al 2007; Prato et al 2010). Decrease in ARA and DHA in octopus reared in Trial 1 may be related to higher demand of these fatty acids induce by high growth rates in comparison to specimens reared in Trial 2.…”

Section: Discussionsupporting

confidence: 92%

“…In this study, higher biomass increments and lower A‐FCR induced by the individual rearing system in both trials were related to higher survival than in group reared octopuses. These results underline the positive effect of individual rearing on octopus survival, also observed in O. vulgaris reared individually in tanks (Petza et al 2006; Miliou et al 2007; Cerezo Valverde et al 2008; García Garrido et al 2011) and in net cages inside tanks (Biandolino et al 2010; Estefanell et al 2009; Prato et al 2010). For this reason, the use of individual rearing is a common practice in other high price and highly cannibalistic farmed species, such as crab Portunus sanguinolentus and lobster, Homarus gammarus (Nicholson et al 2008; Perez et al 2010).…”

Section: Discussionsupporting

confidence: 59%

“…Particularly in O. vulgaris , mortality under rearing conditions is associated to hierarchical behavior, cannibalism, and reproductive processes (García García et al 2009; Estefanell et al 2010). In contrast, high survival rates were observed in octopuses reared in confinement in individual tanks (Petza et al 2006; García García and Cerezo Valverde 2006; Miliou et al 2007; García Garrido et al 2011) or in individual net cages placed inside tanks (400–1000 L) (Biandolino et al 2010; Estefanell et al 2009; Prato et al 2010).…”

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confidence: 99%

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Comparison Between Individual and Group Rearing Systems in Octopus vulgaris (Cuvier, 1797)

Estefanell¹,

Roo²,

Fernández‐Palacios³

et al. 2012

J World Aquaculture Soc

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Recently most research on cephalopod culture has focused on the development of new specific enrichments for paralarvae and compound feeds for juveniles and sub‐adults. However, little research has been conducted in order to test new rearing systems, specifically designed to meet the particularities of these species. This experiment was set to compare the biological performance of Octopus vulgaris reared under traditional group conditions in floating cages (5 m3) and individually in net cages (80 L), in two successive ongrowing trials. Octopuses (1565 ± 263 g) were fed a mixed diet containing crab and fish during 60 d. In general, higher mortality was observed in octopus reared under group conditions (28.1–36.7%) rather than individually (0–12.5%), related to breeding behavior and to weight dispersion along both trials. This led to highest biomass increment in octopus reared individually. However, the group rearing system had a positive effect on growth, reflecting in higher biomass increment and food conversion rates until 40–50 d of rearing. Accordingly, in order to maximize profitability of traditional group on growing, periodic grading and selection of males during the reproductive period are recommended. In addition, no difference in proximate composition and fatty acid profile was found in muscle regardless of rearing system.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 59%

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confidence: 99%

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Comparison Between Individual and Group Rearing Systems in Octopus vulgaris (Cuvier, 1797)

Estefanell¹,

Roo²,

Fernández‐Palacios³

et al. 2012

J World Aquaculture Soc

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“…Besides, other authors suggested that dietary lipids for cephalopods must be rich in phospholipids and cholesterol (Navarro & Villanueva ). Regarding fatty acid profile in octopods, several authors underlined the importance of polyunsaturated fatty acids (PUFA), especially EPA (20:5n‐3) and DHA (22:6n‐3) (Navarro & Villanueva , ; Miliou, Fintikaki, Tzitzinakis, Kountouris & Verriopoulos ; Miliou, Fintikaki, Kountouris, Tzitzinakis & Verriopoulos ; García Garrido, Domingues, Navarro, Hachero‐Cruzado, Garrido & Rosas ; García Garrido et al . ).…”

Section: Introductionmentioning

confidence: 99%

Efficient utilization of dietary lipids inOctopus vulgaris(Cuvier 1797) fed fresh and agglutinated moist diets based on aquaculture by-products and low price trash species

Estefanell

Roo

Guirao³

et al. 2011

Aquac Res

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The aim of this study was to evaluate growth, biochemical composition and dietary nutrients utilization in Octopus vulgaris fed on four diets based on bogue Boops boops, from different origin and in two presentations: fresh discarded bogue (aquaculture by‐product) (DB‐f), fresh wild bogue (low price trash species) (WB‐f), discarded bogue agglutinated moist diet (DB‐m) and wild bogue agglutinated moist diet (WB‐m). Diets based on DB showed higher lipid content (19–26% dw) than those based on WB (5–6% dw). Octopuses fed on DB‐based diets showed higher growth (1.5–1.9% day−1) and higher protein efficiency ratio (0.64–0.69) than those fed on WB‐based diet (1.1–1.5% day−1 and 0.36–0.37 respectively), which suggests good utilization of dietary lipids and also a possible protein sparing effect by lipids in O. vulgaris. Octopuses fed on diets presented fresh showed a higher growth (1.9–1.5% day−1) and a higher feed efficiency (62–65%) than those fed on agglutinated diets (1.1–1.5% and 52–60% day−1 respectively). Regarding fatty acids, the digestive gland clearly reflected dietary lipid and fatty acid profile, while muscle showed a more stable composition. Low dietary ARA content reflected in octopus tissues, especially in specimens fed on DB‐based diets, which did not seem to affect growth during the experimental period.

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Hepatic RNA:DNA ratio as a reliable indicator of the growth performance of juvenile Pelodiscus sinensis under nutritional stress

Xie

Liu

et al. 2017

Fish Sci

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Nucleic acids and fatty acids of the common octopus, Octopus vulgaris, in relation to the growth rate

Cited by 8 publications

References 45 publications

Comparison Between Individual and Group Rearing Systems in Octopus vulgaris (Cuvier, 1797)

Comparison Between Individual and Group Rearing Systems in Octopus vulgaris (Cuvier, 1797)

Efficient utilization of dietary lipids inOctopus vulgaris(Cuvier 1797) fed fresh and agglutinated moist diets based on aquaculture by-products and low price trash species

Hepatic RNA:DNA ratio as a reliable indicator of the growth performance of juvenile Pelodiscus sinensis under nutritional stress

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