Growth and digestibility of formulated diets based on dry and freeze-dried ingredients in the common octopus (Octopus vulgaris)

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

“…⁎ Significant for P b 0.05. ⁎⁎ Significant for P b 0.01. attractant by Morillo-Velarde et al (2012. Glucose was added to enhance protein utilization for growth , but a PPV increase was not observed in this study.…”

“…On the other hand, FDb presented a better feed efficiency (FE) than Mb, being higher than that obtained with crab, similar to that of FMK and bogue, but lower than fish meal and 3FMK (Table 2). Morillo-Velarde et al (2012) attained the best FCR ever in O. vulgaris (of ≈1) with a semi-moist formulation based on squid (diet S; Table 2). In the present study, either FDb or Mb presented a similar FCR than that obtained with crab by Cerezo Valverde et al (2008), but lower than that reported by Querol et al (2014a) while using fish meal.…”

“…In Table 2, a comparison regarding growth (AGR and SGR), ingestion (AFR and SFR) and feed efficiency (FE and FCR) indices obtained with FDb and Mb is made with the results obtained by Morillo-Velarde et al (2012), using a European flying squid freeze-dried based diet (S); by Querol et al (2013Querol et al ( , 2014a, with diets containing fish and krill meals in different proportions (FMK and 3FMK); as well as with natural diets, such as crab (Cerezo Valverde et al, 2008) and bogue . All these studies were performed in similar culture systems and with similar rearing temperatures (≈18.5°C).…”

“…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. However, results regarding the effects of thermal treatment applied to natural food for cuttlefish (Domingues et al, 2009) should not be overlooked because commercial meals are normally processed applying high temperature (≈100°C).…”

Relationships between spawn quality and biochemical composition of eggs and hatchlings of Octopus vulgaris under different parental diets

“…Its great demand throughout different regions of the world is nowadays covered by the commercial fisheries since massive production of captive common octopus juveniles has not been achieved. The major bottlenecks are the high mortality observed in the paralarval stage (Iglesias et al, 2007(Iglesias et al, , 2013, and the lack of an artificial diet that promotes acceptable growth and survival for this species or other cephalopods (Vaz-Pires et al, 2004;Quintana et al, 2008;Morillo-Velarde et al, 2012). Ongrowing and maintenance of juvenile and adult cephalopods are currently accomplished by feeding natural prey such as live, fresh or frozen fishes, crustaceans and/or molluscs.…”