農業部水產試驗所全球資訊網

為了解養殖池水經施用沸石粉後對白蝦成長、活存的影響，於溫室內八口底面積一米平方之FRP水槽(養殖水槽的水深為0.75米)各放養經中間育成，平均體重3公克之白蝦幼蝦64尾(即密度64尾/米平方)，分四組採雙重複試驗，每組投放飼料時各添加沸石粉0、1.33、2.67、4 ppm每天兩次，常溫下鹽分維持在25 ppt，放養後每15天隨機採樣15尾測定體重，養殖62天後收成，蝦體重介於7-8公克之間，各組無明顯差異(P ＞ 0.05)。活存率除對照組外，其餘三組皆達96 %以上。由氨-氮及亞硝酸-氮的測定，可以看出沸石粉確實能改善水質，另施放沸石粉會增加水中濁度。以每日4 ppm連續投放62天僅達45 ntu，尚不足以構成威脅。

摘要abstract(英) To investigate how zeolited pond water effected on the growth and survival of Litopenaeus vannamei, the experiment was processed in the greenhouse with 8 FRP tanks. Each tank was 1 m2 and with 0.75 m water depth. The 3 g young shrimp for experiment were reared in these tanks (each tank 64 pcs), and divided into 4 duplicate groups. The tanks water was controlled in normal temperature and 25 ppt salinity. These groups were fed twice a day, with 0, 1.33, 2.67 and 4 ppm zeolited diets, separately. In the experiment duration, 15 shrimp were random sampled for weighing every 15 days. On the 62th day, it was found at harvest that each group not obviously differed in shrimp body weight. As to the survival rate, all groups were above 96% but the contol. However, the value determination of ammonium-N and nitrite-N showed that zeolite made the water quality better, though it caused water turbid. The turbidity was merely 45 ntu, when 4 ppm zeolite had been added into shrimp diets 64 days in succession. It was harmless for shrimp.