지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 1993.8
- 수록면
- 159 - 171 (13page)
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초록· 키워드
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The effects of environmental factors (density, light, temperature) and live food on growth and survival rate of zoea and mysis of fleshy shrimp, Penaeus chinensis, were examined.
The percent survival rates at the culture densities of 200 and 300 larvae per liter were significantly higher than that of 500 larvae per liter (p<0.05). The percent survival rates at the culture densities of 100, 200, 300 and 500 larvae per liter were 90.3^(ab), 95.2^a, 94.3^a and 86.7^b%(p<0.05).
The effects of light conditions with diatom premix diet showed that continuous light was the best for the survival rate, 96.5%. Natural light and continuous darkness showed the survival rates 79.0% and 4.3%, respectively.
On the rearing temperature, the survival rates were 97.3% at 19℃ and 96.7% at 22℃ with little difference but the higher temperature resulted in faster growth. The survival rate was 51.6% at 25℃ thus showing significant decrease compared to 19℃ and 22℃. At this temperature the growth was also suffered.
With regard to dietary value of live food, both the best survival rate and the fastest growth were obtained when 6 mixed species of diatom (A. normaii, C. simplex, N. closterium, P. tricornutum, S. costatum and T. weissflogii) were provided. When single species was supplied the best survival rate (82.1%) was obtained with S. costatum, but the other species resulted in much inferior survival rates (below 80.0%) and poor growth.
The percent survival rates at the culture densities of 200 and 300 larvae per liter were significantly higher than that of 500 larvae per liter (p<0.05). The percent survival rates at the culture densities of 100, 200, 300 and 500 larvae per liter were 90.3^(ab), 95.2^a, 94.3^a and 86.7^b%(p<0.05).
The effects of light conditions with diatom premix diet showed that continuous light was the best for the survival rate, 96.5%. Natural light and continuous darkness showed the survival rates 79.0% and 4.3%, respectively.
On the rearing temperature, the survival rates were 97.3% at 19℃ and 96.7% at 22℃ with little difference but the higher temperature resulted in faster growth. The survival rate was 51.6% at 25℃ thus showing significant decrease compared to 19℃ and 22℃. At this temperature the growth was also suffered.
With regard to dietary value of live food, both the best survival rate and the fastest growth were obtained when 6 mixed species of diatom (A. normaii, C. simplex, N. closterium, P. tricornutum, S. costatum and T. weissflogii) were provided. When single species was supplied the best survival rate (82.1%) was obtained with S. costatum, but the other species resulted in much inferior survival rates (below 80.0%) and poor growth.
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UCI(KEPA) : I410-ECN-0101-2009-529-015329154