Octopus vulgaris: Ongrowing

Sánchez, Francisco; Valverde, Jesús Cerezo; Garcı́a, Benjamı́n Garcı́a

doi:10.1007/978-94-017-8648-5_24

Cited by 14 publications

(14 citation statements)

References 62 publications

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“…In fact, no mortality was recorded in animals fed natural diets despite the neutral lipid predominance in the lipid profile compared with VEGENAT‐LS2 feed. Accordingly, high survival rates have been reported in ongrowing studies supplying diets containing different proportions of crustaceans and fish (García García & Cerezo Valverde, ) compared with diets based exclusively on fish (Sánchez, Cerezo Valverde, & García García, ). In the present study, when octopuses were lump together in a tank appeared hierarchical order defining strong or weak animals.…”

Section: Discussionmentioning

confidence: 99%

Soybean lecithin dietary supplementation inOctopus vulgarisformulated feeds: Growth, feed efficiency, digestibility and nutritional composition

Rodríguez-González¹,

Valverde²,

Garcı́a³

2018

Aquac Res

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Soybean lecithin dietary supplementation was tested on Octopus vulgaris performance in individual or grouped kept animals. Individually reared animals were fed two semi‐moist diets (N = 8) without (VEGENAT‐LS0) or with supplementation (VEGENAT‐LS2, substituting 20 g/kg of starch by lecithin). VEGENAT‐LS2 had higher polar and total lipid content (p < 0.05). Growth (1.1%–1.3%BW/day), feed intake (2.2%BW/day) and feed efficiency (48%–60%) were similar (p > 0.05). VEGENAT‐LS0 presented higher dry matter, protein and lipid digestibility (p < 0.05). VEGENAT‐LS2 increased lipids in carcass and whole animals (p < 0.05) but preserved lipid classes proportion. Group kept octopuses (N = 10) were fed a mixed natural diet (2BOGUE:1CRAB) or VEGENAT‐LS2. VEGENAT‐LS2 had lower protein but higher polar lipid content (p < 0.05). VEGENAT‐LS2 presented less growth (1.1% vs. 1.8%BW/day), feed intake (1.8% vs. 3.2%BW/day) and similar feed efficiency (53.5% vs. 59.9%). Dry matter and protein digestibility were similar while lipid digestibility was significantly lower in 2BOGUE:1CRAB (31.8% vs. 65.4%). VEGENAT‐LS2 digestive gland presented higher mineral and carbohydrate contents and lower triglycerides (p < 0.05), while a similar macronutrient composition was analysed in the carcass and whole animals. Individual or group keeping did not affect VEGENAT‐LS2 performance. In conclusion, dietary soybean lecithin supplementation did not promote a performance enhancement.

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Section: Discussionmentioning

confidence: 99%

Soybean lecithin dietary supplementation inOctopus vulgarisformulated feeds: Growth, feed efficiency, digestibility and nutritional composition

Rodríguez-González¹,

Valverde²,

Garcı́a³

2018

Aquac Res

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“…However, crustaceans are highly priced and its use would raise the price of produced octopus. Therefore, some fish species, such as bogue (Boops boops) rejected from aquaculture production, have been used in commercial ongrowing García García and Cerezo Valverde, 2006;Sánchez et al, 2014) and in octopus diet formulations Estefanell et al, 2013Estefanell et al, , 2014.…”

Section: Introductionmentioning

confidence: 99%

“…Nonetheless, the development of a sustainable artificial diet is still considered a bottleneck in O. vulgaris culture (Sánchez et al, 2014) and understanding the species physiology and nutrition will probably be the biggest challenge in developing the large scale culture of the species on a medium to long-term (Villanueva et al, 2014).…”

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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“…In the case of cephalopods, the making of formulated feeds is a main challenge towards the development of aquaculture of these species (Vaz‐Pires, Seixas & Barbosa ; Sánchez, Cerezo Valverde & García García ; Villanueva, Sykes, Vidal, Rosas, Nabhitabhata, Fuentes & Iglesias ). To date, most studies on formulated feeds have focused on species of interest for commercial purposes, including Sepia officinalis (Castro & Lee ; Domingues, Ferreira, Marquez, Andrade, López & Rosas ), Octopus maya (Domingues, López, Muñoz, Maldonado, Gaxiola & Rosas ; Rosas, Tut, Baeza, Sánchez, Sosa, Pascual, Arena, Domingues & Cuzon ) or Octopus vulgaris (Quintana, Domingues & Garcia ; García‐Garrido, Domingues, Navarro, Hachero‐Cruzado, Garrido & Rosas ; Estefanell, Roo, Guirao, Afonso, Fernández‐Palacios, Izquierdo & Socorro ; Morillo‐Velarde, Cerezo Valverde, Hernandez, Aguado‐Gimenez & García García ; Cerezo Valverde, Hernández, Aguado‐Giménez, Morillo‐Velarde & García García ; Morillo‐Velarde, Cerezo Valverde & García García ).…”

Section: Introductionmentioning

confidence: 99%

High feeding and growth rates in common octopus (Octopus vulgaris ) fed formulated feeds with an improved amino acid profile and mixture of binders

Valverde

Garcı́a

2016

Aquac Res

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Four semi‐moist formulated feeds were supplied to Octopus vulgaris subadults (664 ± 70 g; 18.4 ± 0.7°C) in two different experiments. In the experiment #1, two diets were prepared with a new mixture of binders (gelatine 150 g kg−1, starch 100 g kg−1 and gum 50 g kg−1). The GEL15‐Squid and GEL15‐Hake feeds included 100 g kg−1 freeze‐dried squid (Todarodes sagittatus) or hake (Merluccius sp.) respectively. Both feeds showed low water disintegration rates at 24 h (13.6–15.0% dry weight). The specific feeding rate was higher in animals fed GEL15‐Hake (2.7%BW day−1), but the growth and feed efficiency were significantly better in animals fed GEL15‐Squid (1.4%BW day−1 and 61.2% respectively; P < 0.05). The proximate composition of the digestive gland, carcass and whole animals was similar. In the experiment #2, the GEL15‐Squid amino acid profile was improved by replacing 50 g kg−1 gelatine by 50 g kg−1 freeze‐dried squid (GEL10‐Squid) or freeze‐dried fish (GEL10‐Fish). These feeds showed higher water disintegration rates (31.7–36.3% dry weight). The feeding rates (2.2–2.3%BW day−1), growth (1.5%BW day−1) and feed efficiency were similar for both diets. Total lipids were higher in the digestive gland and whole animals fed GEL10‐Fish diet (P < 0.05). Future effort could be directed towards alternative binders that allow improve amino acid balance with a minimum gelatine content or even supplementation trials including essential amino acids.

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Octopus vulgaris: Ongrowing

Cited by 14 publications

References 62 publications

Soybean lecithin dietary supplementation inOctopus vulgarisformulated feeds: Growth, feed efficiency, digestibility and nutritional composition

Soybean lecithin dietary supplementation inOctopus vulgarisformulated feeds: Growth, feed efficiency, digestibility and nutritional composition

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

High feeding and growth rates in common octopus (Octopus vulgaris ) fed formulated feeds with an improved amino acid profile and mixture of binders

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