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| Registros recuperados: 14 | |
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| Dhert, Ph.; Lavens, P.; Dehasque, M.; Sorgeloos, P.. |
| The rotifer feeding regime for larval turbot could be improved by more regular feeding and adjusted food distributions as to prevent overfeeding and digestion problems. All tests were successfully run in clear-water conditions indicating that the administration of algae is not essential during the rotifer stage. Larval requirements with respect to (n-3) RUFA, and more specifically DRA and DRA/EPA ratio appeared to change according to the age of the larvae and the physiological condition at the different larval stages. As early as the first week the stress resistance of the larvae could be improved by feeding rotifers specifically enriched in DRA. However, the continuous feeding of these live preys did not result in the best larval output, indicating that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scophthalmus maximus (Linneaus; 1758). |
| Ano: 1995 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2553 |
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| Skjermo, J.; Defoort, T.; Dehasque, M.; Espevik, T.; Olsen, Y.; Skjåk-Bræk, G.; Sorgeloos, P.; Vadstein, O.. |
| In the present experiments we have demonstrated increased protection against a pathogenic bacterium in juvenile turbot (<i>Scophthalmus maximus L.</i>), after feeding the juveniles the live food organism <i>Artemia</i> enriched with a suspension of alginate micro-spheres containing an immunostimulant. Most likely the effect was due to stimulation of the non-specific defence of the juveniles. Poor control of the microbial conditions in the intensive rearing facilities may adversely affect the health of fish larvae, and is most likely one of the main factors restricting production of marine juveniles. Methods which help to control the microflora in the system or improve the resistance of the larvae against bacterial infection may... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artemia Scophthalmus maximus (Linneaus; 1758). |
| Ano: 1995 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2616 |
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| Daemen, E.; Volckaert, F.A.M.J.; Cross, T.F.; Ollevier, F.P.. |
| Clones (<i>Anguilla anguilla</i>) were obtained from a size-selected library (300-800 bp HaeIII, PvuII, EcoRV-digested inserts), by hybridization with gamma super(32)P-labelled (dG-dT) sub(15). The sequences of the loci Aan01, Aan02, Aan03 and Aan04 have been submitted to GenBank/EMBL (acc. nos U67163, U67164, U67165 and U67166). |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biomarkers Genetics Anguilla anguilla (Linnaeus; 1758). |
| Ano: 1997 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2930 |
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| Lein, I.; Gulbrandsen, J.; Holmefjord, I.; Refstie, T.; Bolla, S.; Olsen, Y.; Reitan, K.I.; Vadstein, O.; Øie, G.; Harboe, T.; Sorgeloos, P.. |
| The main goal of the project is to develop intensive industrial scale production systems for halibut fry. Halibut eggs were obtained from three brood stocks both by stripping and by natural spawning. Photoperiod manipulation is used to increase the spawning period, and spawning now takes place in the period February to June/July. The eggs are disinfected and incubated in up-stream conical tanks (8°C, darkness) and transferred to larval incubators after hatching. Two incubator-types are used; small glass bowls (3 liter), run stagnant or semi-stagnant, or large conical silos (0.7-15m³) run with continuous water flow (4-8°C, darkness). These different systems can be used to bring the yolk sac larvae of halibut up to the stage of first feeding. The yolk sac... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hippoglossus hippoglossus (Linneaus; 1758). |
| Ano: 1992 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2784 |
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| Peleteiro, J.B.; Lavens, P.; Rodríguez-Ojeja, G.; Iglesias, J.. |
| The paper presents the data relating to the spawning quality of 20 turbot females (<i>Scophthalmus maximus</i>L.) subjected to natural and controlled photoperiods and fed with two different types of food. A comparison is made between the data usually utilized in hatcheries for defining the spawning quality (number of viable eggs, fertilization and hatching rates, number of larvae produced) and the highly unsaturated fatty acid (HUFA) content of fertilized eggs at the two-cell stage. The results indicate that there is no correlation between the HUFA content of the eggs and any of the egg quality criteria examined. Nevertheless, significant differences (p<0,05) are found between the females fed with fresh trash fish (higher 18:3n-3, 20:4n-6,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scophthalmus maximus (Linneaus; 1758). |
| Ano: 1995 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2591 |
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| Merchie, G.; Lavens, P.; Storch, V.; Übel, U.; Nelis, H.; De Leenheer, A.P.; Sorgeloos, P.. |
| Stable forms of vitamin C were verified as dietary sources of ascorbic acid (AA) for the nursery stages of European sea bass and turbot. In a first experiment, various concentrations of ascorbyl palmitate (AP) and one level of AA 2-polyphosphate (ApP) were evaluated in a semi purified diet for European sea bass, <i>Dicentrarchus labrax</i>. A significantly lower AA concentration was detected in the fry fed the AP-supplemented diets compared to the ApP-fed group, providing evidence that AP is an inferior source of vitamin C for young stages of sea bass. ApP was subsequently selected for the determination of the AA requirements of both sea bass and turbot (<i>Scophthalmus maximus</i>) fry. The AA levels incorporated in the body... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dicentrarchus labrax (Linnaeus; 1758) [Bass] Scophthalmus maximus (Linneaus; 1758). |
| Ano: 1996 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3045 |
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| Geurden, I.; Bergot, P.; Schwarz, L.; Sorgeloos, P.. |
| A 28-day feeding trial was conducted for comparing the effect of different dietary phospholipid (PL) classes on the growth of post-larval turbot and on the incorporation of dietary neutral lipid fatty acids into their body lipids. Prior to the experiment the turbot were weaned for one week on a PL-free diet. The nine experimental diets were isolipidic and contained an equal amount of highly unsaturated fatty acids in the form of ethyl esters. They differed by their PL content (0.1 or 2%) and by the PL class composition of the added soybean PL fractions. Compared to the PL-free diet, diets enriched with phosphatidylcholine (PC) resulted in a better growth, a higher triglyceride content (% body dry matter) and increased levels of docosahexaenoic acid (%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scophthalmus maximus (Linneaus; 1758). |
| Ano: 1998 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=306 |
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| Registros recuperados: 14 | |
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