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
The effects of experimental starter diets with different levels of soybean or menhaden oil on red drum (Sciaenops ocellatus)
Tucker Jr., J.W.; Lellis, W.A.; Vermeer, G.K.; Roberts, D.E.; Woodward, P.N. (1997). The effects of experimental starter diets with different levels of soybean or menhaden oil on red drum (Sciaenops ocellatus). Aquaculture 149(3-4): 323-339. https://dx.doi.org/10.1016/S0044-8486(96)01448-2
In: Aquaculture. Elsevier: Amsterdam; London; New York; Oxford; Tokyo. ISSN 0044-8486; e-ISSN 1873-5622
|  |
| Trefwoorden |
Additives > Food additives
Chemical compounds > Organic compounds > Lipids
Cultures > Fish culture
Diets
Feed efficiency
Feeding experiments
Nutrition > Animal nutrition
Secretory organs > Glands > Exocrine glands > Digestive system > Digestive glands > Liver
Sciaenops ocellatus (Linnaeus, 1766) [WoRMS]
Marien/Kust; Brak water |
| Auteurs | | Top |
- Tucker Jr., J.W.
- Lellis, W.A.
- Vermeer, G.K.
|
- Roberts, D.E.
- Woodward, P.N.
|
|
| Abstract |
Red drum (Sciaenops ocellatus) reared from captive-spawned eggs were used in a 2x4 factorial experiment comparing eight diets with soybean oil (SBO) or menhaden oil (MHO) added to a basal diet (about 3.4% lipid from practical ingredients) at 1.5, 5.2, 9.0, or 12.7%. Triplicate groups of 20 early juveniles (mean 0.4 g) were stocked in 1000 litre fiberglass tanks supplied with filtered estuarine water (17-26° C, mean 22° C; 15-35ppt) and hand fed twice a day to apparent satiation for 56 days. The fish (range 0.3-9.4 g) appeared to utilize up to 1.5-5.2% dietary SBO (in 5.4-8.7% total lipid). With 0.67% EPA+DHA (eicosapentaenoic and docosahexaenoic acids) in the basal diet, no EFA-deficiency signs were observed. Dietary MHO was utilized up to 12.7%, but fish fed diets with more than 1.5% SBO had lower growth rates and increased feed conversion ratios (especially with 9.0 and 12.7% SBO). Diets containing 1.5% SBO or MHO produced the leanest fish (70.5-71.6% protein, 13.0-13.1% lipid, of whole body). Diets containing 9.0 and 12.7% MHO produced the fattest fish (64.5-66.0% protein and 19.1-19.9% lipid). Percent liver lipid (wet) was highest for fish fed diets containing 5.2% SBO (41.4%), 9.0% MHO (36.5%), and 12.7% MHO (35.4%), and lowest with 1.5% MHO (24.0%). Considering the good survival, absence of disease, and excellent general health, this fatty liver condition did not appear to have short-term adverse effects. All fish in the study had fatty livers to some degree, and their liver histological features differed from those of wild fish. Liver lipid reserves might confer some survival advantage to fish released for stock enhancement if the reserves are used during their transition from cultured to wild status. However, if the hepatocyte changes we observed are not reversible, long-term detrimental effects on liver function are possible. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
