소형 rotifer, Proales similis의 성장을 위한 최적 먹이종류 및 공급량

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이배익;김대중;김신권;이남실;;권오남;박흠기;박진철
LEE, Bae-Ik;KIM, Dae-Jung;KIM, Shin-Kwon;LEE, Nam-Sil;HAGIWARA, Atsushi;KWON, O-Nam;PARK, Heum-Gi;PARK, Jin-Chul

  • 투고 : 2015.10.30
  • 심사 : 2016.01.18
  • 발행 : 2016.04.30

초록

This study determined the optimum microalgae species and concentration for growth of small rotifer Proales similis, in community cultures by feeding it several different foods. Four single trials (Tetraselmis suecica, TET; Isochrysis galbana, ISO; Nannochloropsis oculata, NAN; freshwater Chlorella vulgaris, CHL) were conducted at 5 psu and $25^{\circ}C$. The maximum density and specific growth rate (SRG) were highest for rotifer fed CHL reaching 1,075 individuals (inds.)/mL and 0.83 respectively. By contrast, other foods of ISO, NAN and TET resulted in poor growth rates and maximum density. In the freshwater C. vulgaris experiments examining a range of 0.05 to $8.8mg/10^4rotifers$, the growth of rotifer tended to decrease with the amount of supplement. The maximum density and SGR of females was highest at 910 inds./mL and 0.55 respectively, at $0.05mg/10^4rotifers$. These results suggest that the best microalgae species for the culture of P. similis is freshwater C. vulgaris and the optimum concentration is $0.05mg/10^4rotifers$.

키워드

Small rotifer;Proales similis;Maximum density;Food;Concentration

참고문헌

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