배양온도, 먹이생물의 종류에 따라 rotifer 의 성장과 세포크기변화를 알아본 결과 다음과 같다. Large-type rotifer 의 최대세포수는 온도 $36^{\circ}C$, 먹이생물 $\omega$-yeast를 공급한 것에서 배양 7일후 1,420 ind./ml, small-type rotifer에서는 온도 $34^{\circ}C$, 먹이생물 $\omega$- yeast를 공급한 것에서 배양 7일후 1,669 ind./ml로 최고의 성장을 보였다. Rotifer의 크기변화에서는 large-type의 경우 온도 $34^{\circ}C$, 먹이생물 C. ellipsoidea를 공급한 실험구에서 $112.1\mu m$까지 감소되었다 (실험시작시 $202.0\mu m$. Small-type rotifer의 경우는 $320^{\circ}C$, $\omega$-yeast를 먹이로 공급한 것이 배양시작 5일후 $201.3\mu m$까지 증가되었다 (실험시작시 $157.0\mu m$. 크기의 변화가 큰 rotifer에 온도 변화를 다시 주었을 때 처음 실험 시작 때의 rotifer 크기로 회복되었다.
배양온도, 먹이생물의 종류에 따라 rotifer 의 성장과 세포크기변화를 알아본 결과 다음과 같다. Large-type rotifer 의 최대세포수는 온도 $36^{\circ}C$, 먹이생물 $\omega$-yeast를 공급한 것에서 배양 7일후 1,420 ind./ml, small-type rotifer에서는 온도 $34^{\circ}C$, 먹이생물 $\omega$- yeast를 공급한 것에서 배양 7일후 1,669 ind./ml로 최고의 성장을 보였다. Rotifer의 크기변화에서는 large-type의 경우 온도 $34^{\circ}C$, 먹이생물 C. ellipsoidea를 공급한 실험구에서 $112.1\mu m$까지 감소되었다 (실험시작시 $202.0\mu m$. Small-type rotifer의 경우는 $320^{\circ}C$, $\omega$-yeast를 먹이로 공급한 것이 배양시작 5일후 $201.3\mu m$까지 증가되었다 (실험시작시 $157.0\mu m$. 크기의 변화가 큰 rotifer에 온도 변화를 다시 주었을 때 처음 실험 시작 때의 rotifer 크기로 회복되었다.
The growth and size variation of rotifer (Brachionus plicatils) were examined at the various water temepratures ranging form 18 to $36^{\circ}C$, and under continuous light condition. Either Chlorella ellipsoidea or $\omega$-yeast were fed to rotifer as a food organism. Compare...
The growth and size variation of rotifer (Brachionus plicatils) were examined at the various water temepratures ranging form 18 to $36^{\circ}C$, and under continuous light condition. Either Chlorella ellipsoidea or $\omega$-yeast were fed to rotifer as a food organism. Compared to large-type rotifer fed of $\omega$-yeast, those fed on C. ellipsoildea generally showed higher growth at 7th after starting culture under the water temperaure of less than $30^{\circ}C$. Above such temperature, the large-type rotifer fed on $\omega$-yeast showed higher growth rather than those fed on C. ellipsoidea and the maximum cell number reached 1,420 ind./m$\ell$ at $36^{\circ}C$, whereas when the small-type rotifer was fed on $\omega$-teast, its maximum cell number was to be 1,669 ind./m$\ell$at $34^{\circ}C$. The striking decrease in size was found in large-type rotifer which was to be $112.1\mu m$m(initial : 202.0${\mu}{\textrm}{m}$) when they were fed on C. ellipsoidea at $34^{\circ}C$ for 5 days after starting culture. A great increase in size from the initial of 157.0 to $201.3\mu m$mwas show in small-type rotifer fed on $\omega$-yeast at $20^{\circ}C$,for 5 days. The present results demonstrated that size variation of rotifer could be controlled by changing culture temperature.
The growth and size variation of rotifer (Brachionus plicatils) were examined at the various water temepratures ranging form 18 to $36^{\circ}C$, and under continuous light condition. Either Chlorella ellipsoidea or $\omega$-yeast were fed to rotifer as a food organism. Compared to large-type rotifer fed of $\omega$-yeast, those fed on C. ellipsoildea generally showed higher growth at 7th after starting culture under the water temperaure of less than $30^{\circ}C$. Above such temperature, the large-type rotifer fed on $\omega$-yeast showed higher growth rather than those fed on C. ellipsoidea and the maximum cell number reached 1,420 ind./m$\ell$ at $36^{\circ}C$, whereas when the small-type rotifer was fed on $\omega$-teast, its maximum cell number was to be 1,669 ind./m$\ell$at $34^{\circ}C$. The striking decrease in size was found in large-type rotifer which was to be $112.1\mu m$m(initial : 202.0${\mu}{\textrm}{m}$) when they were fed on C. ellipsoidea at $34^{\circ}C$ for 5 days after starting culture. A great increase in size from the initial of 157.0 to $201.3\mu m$mwas show in small-type rotifer fed on $\omega$-yeast at $20^{\circ}C$,for 5 days. The present results demonstrated that size variation of rotifer could be controlled by changing culture temperature.
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