農業部水產試驗所全球資訊網

本試驗係以6個0.3公頃的田間養殖池進行添加有益菌對草蝦養殖影響試驗。A組定期添加光合菌與硝化菌，B組定期添加酵母菌與乳酸菌，C組不添加任何菌種作為對照。12週養殖結果以A組成長最快，收成量與活存率也最好，每池平均收成量為572公斤、活存率為73%。而B組最差，每池平均收成量僅239公斤、活存率為58%。 在水質方面添加有益菌有助於pH值之穩定及降低含氮廢物加速淨化作用之效果，試驗期間水溫分佈在27.0-33.0℃之間，透明度在26-101 cm之間，pH在7.94-9.56之間，溶氧在4.72-8.44 mg/l之間，銨氮在0.05-3.81 mg/l之間，亞硝酸氮在0.004-1.185 mg/l之間，鹽度在20.5-40.5 ppt之間。結果顯示增加養蝦持的光合菌及硝化菌使其維持在103 CFU/ml以上，對增進草蝦成長，提高活存率可能有所助益。但B組池所用的酵母菌與乳酸菌菌種，因在養殖池無法存活，而且在養殖中期出現白點病變，造成池蝦死亡，以致池蝦成長率與活存率均低於對照組。

摘要abstract(英) Six 0.3 ha earthen ponds were divided into three groups. We regularly added photosynthetic bacteria and nitrifying bacteria to group A, and regularly added yeast and lactic acid bacteria to group B, but added nothing to group C which was served as control. Throughout 12 weeks culture period, group A got the best growth rate, the best yield of 572 kg/pond and the best survival rate of 73% at harvest. However, group B got the worst yield of 239 kg/pond and the worst survival rate of 58%. Water quality of the shrimp ponds have following features during experimental peried : 27.0-33.0°C water temperature, 26-101 cm transparency level, 7.94-9.56 pH level, containing 4.72-8.44 mg/l of dissolved oxygen, 0.05-3.81 mg/l of ammonium-N, 0.004-1.185 mg/l of nitrite-N, and a level of 20.5-40.5 ppt salinity. As to bacterial flora, the results showed we can see that photosynthetic bacteria and nitrifying bacteria can live well in Penaeus monodon ponds, but yeast and lactic acid bacteria can’t.