F.3.0 | Protocols and Tables (Enrichment) : Feed Combinations

Choosing Enrichment Feed / Grow-out Feed Combinations that Best Fit the Needs of Your Hatchery

How you choose to grow and enrich your rotifers depends on the level of enrichment that is needed and the enrichment constraints of your hatchery. Most hatcheries feed twice a day, in the morning and in the evening. Some hatcheries feed throughout the day and night with warm stored or cold stored rotifers.

The choices for enrichment are so varied that it is impossible to present them all. Below are a few grow-out and enrichment scenarios that are used including how RotiGrow feeds should be used.

  1. Harvest at night and enrich throughout the night for fully enriched rotifers for use the next day
    • Grow with RotiGrow Nanno or Nanno 3600 and enrich with N-Rich (Nanno) for 2-3 hours (to get initial DHA boost) followed by N-Rich Extend at enrichment levels.
    • Or, Grow with RotiGrow Plus and enrich with N-Rich Plus for 1-2 hours (to get additional HUFA boost) followed by N-Rich Extend at enrichment levels.
  2. Harvest in the morning and quickly enrich rotifers. Use some of the rotifers for morning feeding and cold bank the remaining rotifers for evening feeding.
    • Grow with RotiGrow Plus and enrich with N-Rich Plus for 1-2 hours (to get additional HUFA boost) followed by N-Rich Extend at Cold storage levels.
    • Grow with RotiGrow Nanno or Nanno 3600 and enrich with N-Rich (Nanno) for 2-3 hours (to get initial DHA boost) followed by N-Rich Extend at enrichment levels
  3. Harvest in the morning and quickly (1 hr) enrich the morning rotifers continue enrichment for high HUFA rotifers for the evening feeding.

    • Grow with RotiGrow Plus and enrich with N-Rich Plus for 1-2 hours (to get additional HUFA boost) followed by N-Rich Extend at Cold storage levels.
  4. Harvest in the Morning, feed enriched rotifers throughout the day, feed rotifers from the grow-out tank through the evening and night.


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