지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 1997.8
- 수록면
- 281 - 288 (8page)
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We investigated the optimal concentration of ethyl-p-aminobenzoate for the exfoliation and recovery of young abalone, Haliotis discus hannai in according to different water temperatures, for the purpose of preventing the damage of shell and muscle to exfoliated from shelter.
In the 14℃ water temperature, young abalones were exfoliated after 16, 35, 35 and 35 minutes in 150, 100, 75 and 50ppm concentration of ethyl-p-aminobenzoate, and were recovered after 100, 60, 30 and 30 minutes, respectively. Exfoliation rate of abalone were 100% except for 50 ppm (80%) and recovery rate were 100% of all concentration.
In the 18℃ water temperature, young abalones were exfoliated after 4, 4, 6, 8, 8 and 12 minutes in 300, 200, 150, 100, 75 and 50ppm concentration of ethyl-p-aminobenzoate, and were recovered after 210, 180, 90, 60, 30, 20 and 20 minutes, respectively. Exfoliation rate of abalone were 100%, and recovery rate were 100% except for 200 and 300 ppm (90%).
In the 24℃ water temperature, young abalones were exfoliated after 8, 10, 10 and 12 minutes in 150, 100, 75 and 50ppm concentration of ethyl-p-aminobenzoate, and were recovered after 70, 50, 30 and 20 minutes, respectively. Exfoliation and recovery rate of abalone were 100%.
In the 18℃ water temperature, exfoliation rate that treated with freshwater during 20 minute were 80, 50, 30 and 5% in 100, 75, 50 and 25% of fresh water, and recovered after 60, 15, 10 and 2 minutes, respectively and recovery rate were 100% except for 100% freshwater.
In this study, we suggest the results that the exfoliation and recovery by ethyl-p-aminobenzoate were more effected in 18℃ and 24℃ of sea water temperature than those of 14℃. The optimal concentration of ethyl-p-aminobenzoate was 50ppm at those water temperatures.
We raised 20 individual of young abalones at water temperature of 16℃ in the lℓ of tank and checked the variation of dissolved oxygen (DO) by respiration of abalones that treated with 75ppm of ethyl-p-aminobenzoate. Before anesthetizion, DO were 6.17~6.20 ㎎/ℓ and slowly decreased. But after 60 minutes, DO decreasing were stopped in 5.42~5.46 ㎎/ℓ. On the other hand, the control was continuously decreased and 5.27 ㎎/ℓ after 60 minutes.
The heartbeats of abalones were 33~45/minute in the water temperature of 18℃, but that treated with 100 ppm concentration of ethyl-p-aminobenzoate during 60 minutes, was 0/minute. And heartbeats of recovered abalones from anesthetizion were 29-43/minute.
In the 14℃ water temperature, young abalones were exfoliated after 16, 35, 35 and 35 minutes in 150, 100, 75 and 50ppm concentration of ethyl-p-aminobenzoate, and were recovered after 100, 60, 30 and 30 minutes, respectively. Exfoliation rate of abalone were 100% except for 50 ppm (80%) and recovery rate were 100% of all concentration.
In the 18℃ water temperature, young abalones were exfoliated after 4, 4, 6, 8, 8 and 12 minutes in 300, 200, 150, 100, 75 and 50ppm concentration of ethyl-p-aminobenzoate, and were recovered after 210, 180, 90, 60, 30, 20 and 20 minutes, respectively. Exfoliation rate of abalone were 100%, and recovery rate were 100% except for 200 and 300 ppm (90%).
In the 24℃ water temperature, young abalones were exfoliated after 8, 10, 10 and 12 minutes in 150, 100, 75 and 50ppm concentration of ethyl-p-aminobenzoate, and were recovered after 70, 50, 30 and 20 minutes, respectively. Exfoliation and recovery rate of abalone were 100%.
In the 18℃ water temperature, exfoliation rate that treated with freshwater during 20 minute were 80, 50, 30 and 5% in 100, 75, 50 and 25% of fresh water, and recovered after 60, 15, 10 and 2 minutes, respectively and recovery rate were 100% except for 100% freshwater.
In this study, we suggest the results that the exfoliation and recovery by ethyl-p-aminobenzoate were more effected in 18℃ and 24℃ of sea water temperature than those of 14℃. The optimal concentration of ethyl-p-aminobenzoate was 50ppm at those water temperatures.
We raised 20 individual of young abalones at water temperature of 16℃ in the lℓ of tank and checked the variation of dissolved oxygen (DO) by respiration of abalones that treated with 75ppm of ethyl-p-aminobenzoate. Before anesthetizion, DO were 6.17~6.20 ㎎/ℓ and slowly decreased. But after 60 minutes, DO decreasing were stopped in 5.42~5.46 ㎎/ℓ. On the other hand, the control was continuously decreased and 5.27 ㎎/ℓ after 60 minutes.
The heartbeats of abalones were 33~45/minute in the water temperature of 18℃, but that treated with 100 ppm concentration of ethyl-p-aminobenzoate during 60 minutes, was 0/minute. And heartbeats of recovered abalones from anesthetizion were 29-43/minute.
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