S-type rotifers showed the same enrichment kinetics but had a plateau value at 40 mg/g DW. For both strains the DHA and EPA kinetics followed the n-3 HUFA saturation curve with a
fixed DHA/EPA>3 after 2 days of culture. Both strains reached 20 mg·g−
1 DW in 4 days of culture; this figure was maintained in the L-strain and increased up to 25 mg·g−1 DW in the S-strain at the end of the second cycle