Rotifers as food in aquaculture

E. Lubzens, A. Tandler, G. Minkoff

Research output: Contribution to journalArticlepeer-review

168 Scopus citations

Abstract

The rotifer Brachionus plicatilis (O.F. Muller) can be mass cultivated in large quantities and is an important live feed in aquaculture. This rotifer is commonly offered to larvae during the first 7-30 days of exogenous feeding. Variation in prey density affects larval fish feeding rates, rations, activity, evacuation time, growth rates and growth efficiencies. B. plicatilis can be supplied at the food concentrations required for meeting larval metabolic demands and yielding high survival rates. Live food may enhance the digestive processes of larval predators. A large range of genetically distinct B. plicatilis strains with a wide range of body size permit larval rearing of many fish species. Larvae are first fed on a small strain of rotifers, and as larvae increase in size, a larger strain of rotifers is introduced. Rotifers are regarded as living food capsules for transferring nutrients to fish larvae. These nutrients include highly unsaturated fatty acids (mainly 20: 5 n-3 and 22: 6 n-3) essential for survival of marine fish larvae. In addition, rotifers treated with antibiotics may promote higher survival rates. The possibility of preserving live rotifers at low temperatures or through their resting eggs has been investigated.

Original languageEnglish
Pages (from-to)387-400
Number of pages14
JournalHydrobiologia
Volume186-187
Issue number1
DOIs
StatePublished - 1 Dec 1989
Externally publishedYes

Keywords

  • marine larvae
  • nutrition
  • rotifers

ASJC Scopus subject areas

  • Aquatic Science

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