Flanders Marine Institute

Platform for marine research

In:

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
report an error in this recordbasket (1): add | show Printer-friendly version

one publication added to basket [2987]
The effect of dietary n-3 HUFA and 22:6n-3/20:5n-3 ratio on white shrimp larvae and postlarvae
Wouters, R.; Van Hauwaert, A.; Naessens, E.; Ramos, X.; Pedrazzoli, A.; Lavens, P. (1997). The effect of dietary n-3 HUFA and 22:6n-3/20:5n-3 ratio on white shrimp larvae and postlarvae. Aquacult. Int. 5: 113-126
In: Aquaculture International. Springer: London. ISSN 0967-6120, more
Peer reviewed article

Also published as
  • Wouters, R.; Van Hauwaert, A.; Naessens, E.; Ramos, X.; Pedrazzoli, A.; Lavens, P. (1997). The effect of dietary n-3 HUFA and 22:6n-3/20:5n-3 ratio on white shrimp larvae and postlarvae, in: (1997). IZWO Coll. Rep. 27(1997). IZWO Collected Reprints, 27: pp. chapter 32, more

Available in Authors 
    VLIZ: Open Repository 2987 [ OMA ]

Keywords
    Marine; Brackish water; Fresh water

Authors  Top 
  • Wouters, R.
  • Van Hauwaert, A.
  • Naessens, E.
  • Ramos, X.
  • Pedrazzoli, A.
  • Lavens, P., more

Abstract
    The influence of varying dietary n-3 HUFA concentrations and ratios of 22:6n-3/20:5n-3 (DHA/EPA) on culture performance and fatty acid composition of white shrimp (Penaeus vannamei) larvae and postlarvae was verified in two experiments. In a first experiment, shrimp (zoea 2-postlarvae 11) were fed rotifers (Brachionus plicatilis) and Artemia spp. nauplii that were enriched with different self-emulsifying concentrates: one HUFA-free coconut oil (T1), and three iso-HUFA concentrates with DHA/EPA ratios of 0.6 (T2), 2 (T3) and 4 (T4), respectively. In a second experiment, postlarvae were fed for 25 days (starting from postlarvae 10) on isolipidic semi-purified diets: one HUFA-free control (TA), and four iso-HUFA diets with DHA/EPA ratios of 0.6 (TB), 0.9 (TC), 1.8 (TD) and 3.64 (TE), respectively. Experiment 1 revealed no significant differences in production characteristics, except that resistance to a counter-current stress in postlarvae 11 was significantly lower in T1 than in T2 and T3 (p<0.05). In experiment 2, postlarvae of TA had a significantly lower dry weight than the other treatments at the end of the trial. The effect of the DHA/EPA ratio within the experimental limits could not be demonstrated. Analysis of the fatty acid composition of the shrimp showed notable changes of n-3 HUFA concentrations during the metamorphosis from mysis to postlarvae, and a different response to the dietary concentrations of DHA compared to EPA.

 Top | Authors