Growth and production of resting eggs of freshwater rotifer, Brachionus calyciflorus Pallas at the different temperatures

Park, Huem Gi

Journal of the Korean Fisheries Society 31(5): 779-784


Accession: 010726022

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The specific growth rate and production of resting egg of the freshwater rotifer, Brachionus calyciflorus Pallas was investigated at the different temperatures (20apprx30degreeC). The rotifer was cultured in 250 ml flask and fed on concentrated freshwater Chlorella. Specific growth rate of B. calyciflorus showed higher rate at higher temperature, but maximum density was observed higher at lower temperature, expect at 20degreeC. The production of resting egg with temperature was showed decrease on the basis on 26degreeC. The highest number of resting egg per ml and rotifer 104 were 157 eggs and 810 eggs at 26degreeC, respectively. This result shows that the, optimum temperature for mass culture and resting egg production of this freshwater rotifer were 30degreeC and 26degreeC, respectively.