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Rotifer Culture & Pre-enrichment

Obtain the highest growth rates for your rotifers

Proviron Prime microalgae result in healthy, vigorous rotifers ready for the enrichment phase at high densities. The product contains freeze dried microalgae ensuring stable rotifer production (high fecundity) with high nutritional value (fatty acids, proteins, sterols, etc.) and inhibiting Vibrio spp. in the rotifer tanks. The product is ideal for rotifer batch, semi-continuous and continuous production.

Rotifers cultivated on NannoPrime exhibit high EPA and high vitamin levels. These nutrients are not lost while harvesting and feeding to fish larvae. Using this rotifer culturing diet will save on costs and space, eliminating the algal production in the hatchery and are very easy to use.

Complementation of a NannoPrime diet with IsoPrime at ratios up to 20% can give an extra boost to their growth. Note: The use of IsoPrime is not advised as a sole diet for the cultivation of rotifers.

Rotifers cultured on Proviron Prime microalgae have:

  • A high nutritional value (poly-unsaturated fatty acids (EPA/DHA), minerals, vitamins, phytosterols) for marine fish larvae production
  • A low bacterial load
  • A high daily egg ratio

High production efficiency

  • NannoPrime or the NannoPrime/IsoPrime combination can be used for low and high density rotifers
  • NannoPrime or the NannoPrime/IsoPrime combination can be used in batch culture systems, semi-continuous and continuous culture systems

Main benefits:

  • Ready and easy-to-use algae
  • High stability of culture performance
  • Ensure consistent premium nutritional quality
  • Increase production capacity

Feeding strategy:

Depending on the quantities of rotifers required, it is possible to choose a strategy that will meet the demands of one’s system.

Starter rotifers should be clean, in good nutritional condition and have an egg-ratio of 20%.

The rotifer numbers illustrated in this feeding regime are indicative for Brachionus plicatilis clade L (‘L-type’) rotifers. Results can vary according to your culture conditions. Culture medium should be cloudy, very clear water may be an indication for underfeeding.

Rotifer culture manual:

For detailed instructions and experimental results consult our Rotifer Culture Manual here

Feeding regime:

Day # rotifers/ml g/106 rotifers
0 350 0,385
1 600 0,385
2 1100 0,385
3 1600 0,385
4 2200 0,385



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