Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
| one publication added to basket [2922] |
Dietary phosphatidylcholine requirements in larval and postlarval Penaeus japonicus Bate
In: Aquaculture Nutrition. Blackwell Science: Oxford. ISSN 1353-5773; e-ISSN 1365-2095, meer
|  |
| Trefwoorden |
Penaeus japonicus Spence Bate, 1888 [WoRMS]
Marien/Kust |
| Auteurs | | Top |
- Camara, M.R.
- Coutteau, P., meer
- Sorgeloos, P., meer
|
|
|
| Abstract |
Three nutritional experiments were carried out to investigate the effect of dietary phosphatidylcholine (PC) on the growth (length, weight, and metamorphosis) and survival (rearing and stress) of larval and postlarval Penaeus japonicus Bate. Purified soybean phosphatidylcholine (SPC, 95% purity), hen-egg PC (EPC, 94% purity), and de-oiled soybean lecithin (DSL, PC 23% purity) were used as sources of dietary PC. The results indicated that optimal metamorphosis in larval P. japonicus was obtained at levels of 15-30 g kg-1 of dietary SPC. Feeding trials with postlarval P. japonicus showed that low levels of dietary SPC (15 g kg-1) were more beneficial than higher levels of SPC (30 g kg-1) or DSL (65 g kg-1), although early postlarvae (<3 mg dry weight) presented a higher requirement for PC than later stages. Shrimp fed the 150 g kg-1 PC-supplemented diets exhibited significantly better resistance to salinity stress than those fed a PC-deficient diet. A high level of dietary soybean lecithin (65 g kg-1 DSL), providing 15 g kg-1 of dietary PC, was no more effective for young postlarvae of P. japonicus than 15 g kg-1 of purified PC alone, which suggested that the other phospholipids (mainly phosphatidylethanolamine and phosphatidylinositol) in the soybean lecithin are not required for postlarval shrimp, at least when there is already an adequate source of PC. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
