Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
Technical and economical feasibility of a rotifer recirculation system
Suantika, G.; Dhert, P.; Sweetman, E.; O'Brien, E.; Sorgeloos, P. (2003). Technical and economical feasibility of a rotifer recirculation system. Aquaculture 227(1-4): 173-189. dx.doi.org/10.1016/s0044-8486(03)00502-7
In: Aquaculture. Elsevier: Amsterdam; London; New York; Oxford; Tokyo. ISSN 0044-8486; e-ISSN 1873-5622
|  |
| Trefwoorden |
Fluids > Gases > Atmospheric gases > Ozone
Recirculation
Rotifers
Brachionus plicatilis Müller, 1786 [WoRMS]; Rotifera [WoRMS]
Marien/Kust |
| Author keywords |
Brachionus plicatilis; recirculation; rotifers; ozone; protein skimmer; operational cost |
| Auteurs | | Top |
- Suantika, G.
- Dhert, P.
- Sweetman, E.
|
- O'Brien, E.
- Sorgeloos, P.
|
|
| Abstract |
A feasibility study was performed on the use of a recirculation system for the mass culturing of rotifers at industrial level. Rotifer culture systems with a culture volume of 750 l were operated at three different stocking densities (3000, 5000 and 7000 individuals ml-1) in a completely closed recirculation system. At all operating rotifer densities, a reliable production of 2.2 billion rotifers could be obtained on a daily basis during 3 weeks. Excellent water quality was maintained by the use of protein skimmers, the use of ozone and a submerged biofilter. The microbial counts remained stable during the whole culture period (106 CFU ml-1 on marine agar and 104 CFU ml-1 on TCBS after 15 and 23 days, respectively). No difference in HUFA and protein content were obtained between rotifers harvested from the recirculation system or from a conventional batch culture system. Compared to a commercial batch culture system, the use of a recirculation system can contribute to a 43% saving on the capital investment and the annual operation cost. By using this system, capital investment cost is considerably reduced by 46%. Savings are also made on labour cost (65%) and feed cost (21%) during a 1-year production. In general terms, it can be stated that by using a simple recirculation system, a cost-effective technology and a reliable rotifer culture can be obtained. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
