Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Influence of natural diet on growth and biochemical composition of Octopus vulgaris Cuvier (1797) |
| Abstract | The influence of diet on growth and biochemical composition of cultured Octopus vulgaris was investigated. Octopuses were reared in a open recirculation seawater system and during the experiment were kept apart in cages. Experiment lasted 30 days. Three experimental dietary groups were established: group I (mixed diet: Carcinus mediterraneus, Boops boops and Mytilus galloprovincialis), group II (monodiet on B. boops) and group III (monodiet on M. galloprovincialis). The best results were obtained with the monodiet based on bogue that gave a weight gain of 390.65 ± 37.54, an absolute growth rate of 13.02 g day-1 and feed efficiency of 44.79 ± 0.96%. Regarding to biochemical composition, the mussel-fed and bogue-fed groups showed the highest protein content. Animals fed on bogue also showed the highest carbohydrate content, while the lowest value was observed in the mussels-fed group. The lipid content was found to be very low in all dietary groups. Saturated fatty acids were the most abundant fatty acid class, ranging from 58.22% in wild octopuses to 46.83% in bogues-fed octopuses. Polyunsaturated fatty acids (PUFAs) were the second most abundant fatty acids class in all dietary treatments (25.65-37.00% as a per cent of total FAs) except in octopuses fed with mussels. MUFAs ranged from 11.44 to 26.93% of total FAs. Although it is empirically known that a varied diet better covers the nutritional requirements than a monodiet, the results of this study reveal that a monodiet of B. boops may be used. |
| Source | Aquaculture international 18, pp. 1163–1175 |
| Keywords | Octopus vulgarisFeedingGrowthNatural dietFatty acid |
| Journal | Aquaculture international |
| Editor | Chapman & Hall,, London, Regno Unito |
| Year | 2010 |
| Type | Articolo in rivista |
| DOI | 10.1007/s10499-010-9331-x |
| Authors | Biandolino F., Portacci G., Prato E. |
| Text | 6877 2010 10.1007/s10499 010 9331 x ISI Web of Science WOS 000282316700015 Octopus vulgaris Feeding Growth Natural diet Fatty acid Influence of natural diet on growth and biochemical composition of Octopus vulgaris Cuvier 1797 Biandolino F., Portacci G., Prato E. CNR IAMC UOS Taranto CNR IAMC UOS Taranto CNR IAMC UOS Taranto The influence of diet on growth and biochemical composition of cultured Octopus vulgaris was investigated. Octopuses were reared in a open recirculation seawater system and during the experiment were kept apart in cages. Experiment lasted 30 days. Three experimental dietary groups were established group I mixed diet Carcinus mediterraneus, Boops boops and Mytilus galloprovincialis , group II monodiet on B. boops and group III monodiet on M. galloprovincialis . The best results were obtained with the monodiet based on bogue that gave a weight gain of 390.65 ± 37.54, an absolute growth rate of 13.02 g day 1 and feed efficiency of 44.79 ± 0.96%. Regarding to biochemical composition, the mussel fed and bogue fed groups showed the highest protein content. Animals fed on bogue also showed the highest carbohydrate content, while the lowest value was observed in the mussels fed group. The lipid content was found to be very low in all dietary groups. Saturated fatty acids were the most abundant fatty acid class, ranging from 58.22% in wild octopuses to 46.83% in bogues fed octopuses. Polyunsaturated fatty acids PUFAs were the second most abundant fatty acids class in all dietary treatments 25.65 37.00% as a per cent of total FAs except in octopuses fed with mussels. MUFAs ranged from 11.44 to 26.93% of total FAs. Although it is empirically known that a varied diet better covers the nutritional requirements than a monodiet, the results of this study reveal that a monodiet of B. boops may be used. 18 Articolo pubblicato Biandolino_et_al_2010_Aq_Int_.pdf Articolo in rivista Chapman Hall, 0967 6120 Aquaculture international Aquaculture international Aquac. int. Aquaculture international francesca.biandolino BIANDOLINO FRANCESCA giuseppe.portacci PORTACCI GIUSEPPE ermelinda.prato PRATO ERMELINDA TA.P04.029.001 Estrazione di sostanze attive da organismi marini e valutazione delle risposte alla esposizione di contaminanti di tipo chimico sugli esseri viventi |