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題名 | Effect of Antifreeze Protein on Cold Tolerance in Juvenile Tilapia(Oreochromis mossambicus Peters)and Milkfish(Chanos chanos Forsskal)=抗凍蛋白對吳郭魚和虱目魚稚魚抗寒之影響 |
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作者 | 吳淑美; 黃鵬鵬; 丘才良; 吳金洌; Wu, Su-mei; Hwang, Pung-pung; Hew, Choy-leong; Wu, Jen-leih; |
期刊 | 動物研究學刊 |
出版日期 | 19980100 |
卷期 | 37:1 1998.01[民87.01] |
頁次 | 頁39-44 |
分類號 | 439.5 |
語文 | eng |
關鍵詞 | 抗凍蛋白; 抗寒; 吳郭魚; 虱目魚; Antifreeze protein; Cold tolerance; Tilapia; Milkfish; |
中文摘要 | 本試驗以抗凍蛋白(antifreeze protein)經由投餵與肛門注射方式,處理吳郭魚和虱目 魚稚魚,以了解它們在低溫下之抗寒效果。 吳郭魚稚魚(體重2.5~3.0 g),經由肛門注射抗凍蛋白0或20 μg/體重,每2天處理一次, 共注射6劑之後進行低溫忍受力測試;從26 ℃轉移到13 ℃24小時之後,吳郭魚稚魚之死 亡率對照組是53.3%,而處理組則為14.3%。虱目魚稚魚(0.9~1.1g) 經由肛門注射抗凍蛋白 100 μg/g 體重,牛血清蛋白100 μg/g體重或生理食鹽水,每2天注射一劑共注射6劑之後, 在4~5天之間由26 ℃逐漸轉移到16或13 ℃。其結果是對照組有66.7~100%之死亡率(包 括生理食鹽水及牛血清蛋白組),而抗凍蛋白處理組之死亡率則為13.3~33.3%。另外在投餵 實驗中,投餵鰻粉飼料含抗凍蛋白0 (對照組),100或1000 μg/g 予吳郭魚稚魚,投餵量是 體重之20%,共投餵12天;之後從26℃轉移至13℃,對照組有60%死亡率,100 μg/g抗 凍蛋白組死亡率41.9%,而1000 μg/g組其死亡率是3.4%。 這些結果顯示抗凍蛋白對吳郭魚及虱目雨稚魚之低溫忍受力有增強效果。 |
英文摘要 | Su-Mei Wu, Pung-Pung Hwang, Choy-Leong Hew and Jen-Leih Wu (1998) Effect of antifreeze protein on cold tolerance in juvenile tilapia (Oreochromis mossambicus Peters) and milkfish (Chanos chanos Forsskal). Zoological Studies 37 (1): 39-44. The effects of administration of antifreeze protein (AFP) via anal injection, or by feeding, on the mortalities of juvenile tilapia (Oreochromis mossambicus Peters) and milkfish (Chanos chanos Forsskal) exposed to low temperature were examined. Tilapia juveniles (1.5-3.0 g body weight) were administrated via anal injection 0 (control) or 20 μg AFP/g body weight every 2 d for 6 doses, and later were subjected to cold-tolerance test. The mortality of tilapia, 24 h afer the transfer from 26 ℃ to 13 ℃, was 53.3% in the control and 14.3% in the AFP group. Milkfish juveniles (0.9-1.1 g body weight) were given via anal injection 100 μg AFP/g body weight, 100μg BSA/g body weight or saline every 2 d for 6 doses. After injections, milkfish were treated by gradually decreasing temperature within 4-5 d from 26 ℃ to 16 or 13 ℃. At the end of the experiment the mortality of milkfish was 66.7%-100% in the controls (BSA and saline groups) and 13.3%-33.3% in the AFP group. In the feeding experiment artificial eel feed was given at a level of 0 (control), 100, or 1000 μg AFP/g body weight to feed tilapia juveniles (0.01- 0.02 g body weight) at a rate of 20% body weight per day for 12 d. The mortality at 24 h after the transfer to 13 ℃ was 60% in the control, 41.9% in the 100 μg/g AFP group and 3.4% in the 1000 μg/g AFP group. These results suggest that AFP is able to enhance the tolerance of tilapia and milkfish juveniles to exposure to low temperatures. |
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