摘要水产养殖在中国非常普遍，水产养殖常用的消毒剂就有高锰酸钾（Potassium permanganate），其溶液具有较强的消毒，杀菌和防腐的作用。既能消毒杀菌又能促进植物生长。因此，高锰酸钾是一种肥药兼用的杀菌剂。71689

据了解，该药品各地药店均有销售，且价格便宜，采购也比较方便。因此，高锰酸钾在我们的生活中较为常见。然而，高锰酸钾使用不当也会给很多水产动物造成危害。

本文以中华新米虾(Neocaridina denticulata sinensis)为研究对象，主要探究高锰酸溶液对中华新米虾的毒性作用。主要实验方法是将中华新米虾成虾放置在浓度为3mg/L-12mg/L的1L高锰酸钾溶液中。设置两个平行组，每个浓度每组里面放置6只中华新米虾。实验期间配置好溶液并将中华新米虾放入容器后，将实验室窗帘拉上。尽量避免光照对高锰酸钾的影响。分别记录24h、48h、72h以及96h后，不同浓度高锰酸钾溶液对虾的致死个数，从而计算出不同时间的致死率。然后通过excel工具得到一元方程式。计算出24h、48h、72h、96h的半致死浓度分别为8.24mg/L、6.76mg/L、5.94mg/L和5.32mg/L。

结果表明:高锰酸钾溶液浓度高于5.32mg/L时会严重影响中华新米虾的健康。

该论文有图1幅，表3个，参考文献10篇。

毕业论文关键词：中华新米虾  高锰酸钾  半致死浓度   

Study on Potassium Permanganate Neocaridina denticulata sinensis Tolerance

Abstract Aquaculture in China is very common, there are aquatic commonly used disinfectant potassium permanganate (Potassium permanganate), potassium permanganate is a strong oxidant, its solution has the effect of a strong disinfection, sterilization and preservation. At the same time, it contains potassium and manganese plant required two elements, both sterilization and promote plant growth. Therefore, potassium permanganate is a drug used along with fertilizer fungicide.

It is understood that the drugs are sold over the pharmacy, and the price is cheaper, more convenient purchase. Thus, potassium permanganate in our lives more common. However, improper use of potassium permanganate also to many aquatic animals harm.

In this paper, the Neocaridina denticulata sinensis (Neocaridina denticulata sinensis) for the study, to explore a high manganese toxicity acid solution for the Neocaridina denticulata sinensis. The main experimental method is to place the Neocaridina denticulata sinensis into shrimp at a concentration of 3mg / L-12mg / L of potassium permanganate solution 1L. Set up two parallel groups, each concentration is placed inside each six Neocaridina denticulata sinensis. Configuring a good solution during the experiment and after the Neocaridina denticulata sinensis into a container, the laboratory curtains. Minimize the impact of light on potassium permanganate. Were recorded 24h, 48h, 72h and 96h, the number of lethal potassium permanganate solution with different concentrations of shrimp to calculate the mortality rates at different times. Then one-variable equations obtained by excel tool. Calculated 24h, 48h, 72h, 96h were lethal concentration of 8.24mg / L, 6.76mg / L, 5.94mg / L and 5.32mg / L.

The results suggest: It will seriously affect the health of Neocaridina denticulata sinensis when potassium permanganate solution concentration is higher than 5.32mg / L.

Key Words: Neocaridina denticulata sinensis  Potassium permanganate  Lethal concentration.

目  录

摘  要 I

Abstract II

目  录 IV

图清单 V

表清单 V

变量注释表