Growth and Production of Resting Eggs of Freshwater Rotifer, Brachionus calyciflorus Pallas at the Different Temperatures

The specific growth rate and production of resting ega of the freshwater rotifer, Brachionus calyciflorus Pallas was investigated at the different temperatures (). 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 . The production of resting egg with temperature was showed decrease on the basis on . The highest number of resting egg per ml and rotifer were 157 eggs and 810 eggs at , respectively. This result shows that the optimum temperature for mass culture and resting egg production of this freshwater rotifer were and , respectively.