首页> 外文OA文献 >Optimal Dose of Total Residual Oxidants for Hybrid Tilapia (Oreochromis mossambicus x O. niloticus) and Whiteleg Shrimp (Litopenaeus vannamei) in Ozone-Treated Sea Water
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Optimal Dose of Total Residual Oxidants for Hybrid Tilapia (Oreochromis mossambicus x O. niloticus) and Whiteleg Shrimp (Litopenaeus vannamei) in Ozone-Treated Sea Water

机译:臭氧处理过的海水中罗非鱼(Oreochromis mossambicus x O. niloticus)和白腿虾(Litopenaeus vannamei)的总残留氧化剂的最佳剂量

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摘要

The purpose of this study was to use total residual oxidants (TRO) as an indicator for determining the optimal ozone dosage needed to control water quality and thereby enhance survival of cultivated aquatic organisms. When the TRO concentration was maintained at 0.16 mg/l for two hours, the total bacteria plate count dropped from 7.7 x 103 CFU/ml in the untreated sea water to less than 10 CFU/ml in the ozone-treated sea water. The TRO con- centration in the ozone-treated water was well below the 96-h LC50 for hybrid tilapia (Oreochromis mossambicus x O. niloticus) and whiteleg shrimp (Litopenaeus vannamei) determined in this study. Hence, adjust- ment of the ozone concentration in aquacultural sea water is a viable option that simultaneously kills the majority of harmful bacteria in the water and enhances survival of cultivated aquatic organisms.
机译:这项研究的目的是使用总残留氧化剂(TRO)作为确定控制水质并由此提高养殖水生生物生存所需的最佳臭氧剂量的指标。当TRO浓度保持在0.16 mg / l达两个小时时,细菌总数从未处理海水中的7.7 x 103 CFU / ml降至在臭氧处理海水中的10 CFU / ml以下。在这项研究中确定的混合罗非鱼(罗非鱼(Oreochromis mossambicus x O. niloticus))和白腿虾(南美对虾)的臭氧处理水中的TRO浓度远低于96小时LC50。因此,调节水产养殖海水中的臭氧浓度是一种可行的选择,它可以同时杀死水中的大多数有害细菌并提高养殖水生生物的存活率。

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