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為瞭解微泡供氧機的效果，以前年度之氧氣錐供氧系統為對照組，於室內 40 m2之A、B二池做比較，A池為對照池，B 池為試驗池。放養平均體重2.0 g草蝦，密度 100 尾/平方公尺，即 4,000 尾/池的放養量。 試驗期間，自 7 月 7 日至 9 月 4 日止，共經 4 次的測定，結果摘要如下：使用微泡機的 B 池，在養殖期間雖可將大分部的殘留雜物借微泡的附著而浮在表面加以收集，而且溶氧可大幅提高，但就單位生產量及活存率觀之，微泡供氧機在本次試驗結果並不比氧氣錐優異。 B 池活存率僅64%， 低於對照之95%。餌料效益 B 池亦低於對照池，其 FCR 值為 2.86， 高於對照之 2.40。試驗結束清池時， B 池大型蝦僅佔29.6%， 低於A池之31.7%。單位面積生產量，B池為0.47 kg/m2，亦低於對照池之 0.75 kg/m2。 B池共收集滴乾重150 kg的有機雜物，DO平均8.0 ppm，高於，A池，pH值平均8.26高於A池，氨-氮及亞硝酸-氮為0.94 ppm及0.36 ppm高於 A 池，透明度 B 池均保持在 20 - 25 cm 的綠水，而A池保持大於 100 cm 的見底程度。收成的蝦体色及觸鬚正常，而對照的A池則出現体色黑變且短鬚的異常現象，此為微泡供氧機的效果在本試驗中所得到較可注目的結果。

　　This study aimed to compare the effect between two different oxygen supply installations, circulating oxygen-water mixing tank and micro-bubbles oxygen supplier for indoor culture, the former supplied oxygen indirectly to pond A by means of mixing oxygen and water in a tank first then pumped the treated water into the pond, the latter using a oxygen producer to supply oxygen directly to pond B by a micro-bubble pump which was installed in the water and in the center area of pond. Pond A & B, 40 m2 in size respectively, were kept 80 cm of water depth with a stocking density of 100 pcs/ m2, i.e. 4,000 pcs/pond, the observation period was from July 7 to September 4 in 1997. The results are summarized as follows:
1. In the observation period, the water of pond B was kept in green with a stable transparency ranging from 20 cm to 25 cm, the bottom of pond A could be seen with a transparency higher than water depth of 80 cm. Except water transparency , DO, pH, ammonia-N, and nitrite-N of Pond B was higher than those of Pond A.
2. FCR of pond A and B were 2.40 and 2.86 respectively.
3. The unit production of pond A was 0.47 kg/m2 which was higher than that of pond B.
4. The shell color of the entire shrimp of pond B harvested turned to be in black instead of normal blue-yellowish color and the antenna flagellum was also abnormally short. We recognized that the abnormal phenomenon mentioned above was impacted by high transparency companion with dirty pond bottom.
5. In spite of survival rate, the growth trend of pond A and B were almost the same. The relationship between body weight (Y) in g and time elapsed (A and B) in day was Y = 0.0849 A+1.822, R2 =0.9565 for shrimp of pond A, and was Y=0.0921B+1.57, R2 =0.959 for pond B.
6. Survival rate of pond A and pond B were 95% and 64% respectively. The lower survival rate obtained in Pond B was caused by a good quantity of larva shrimp were sucked by the micro-bubble pump in the earlier days of stocking. In the other hand, too high DO sometimes as high as 10-14 ppm may caused stress or "gas-bubble" disease especial for larva shrimp in the earlier period of stocking was also discussed in this paper.Lin, M. N., B. S. Tzeng, C. Y. Yeh and Y. Y. Ting (1998) Comparison of the effect of circulating oxygen-water mixing tank and micro-bubbles oxygen supplier for indoor culture of Penaeus monodon. J. Taiwan Fish. Res., 6(1): 43-53.
Key words: DO, pH, Stocking density, Survival rate, Shell color, Antenna flagellum