三种常用化学消毒剂对牙鲆仔稚鱼的急性毒性研究

选用3种化学消毒剂对牙鲆仔稚鱼进行急性毒性试验。结果表明,高锰酸钾对牙鲆仔鱼的24 hLC504、8 h LC50和安全浓度分别为1.678×10-6、1.382×10-6和0.281×10-6,对牙鲆稚鱼的24 h LC50、48 hLC50和安全浓度分别为2.555×10-6、1.789×10-6和0.263×10-6;甲醛对牙鲆仔鱼的24 h LC50、48 h LC50和安全浓度分别为25.821×10-6、10.671×10-6和0.547×10-6,对牙鲆稚鱼的24 h LC50、48 h LC50和安全浓度分别为33.959×10-6、17.046×10-6和1.288×10-6;聚维酮碘对牙鲆仔鱼的24 h LC50、48 h LC50和安全浓度分别为15.744×10-6、8.163×10-6和0.658×10-6,对牙鲆稚鱼的24 h LC504、8 h LC50和安全浓度分别为25.802×10-6、21.286×10-6和4.346×10-6。牙鲆仔稚鱼对3种化学消毒剂的敏感性依次为:高锰酸钾>甲醛>聚维酮碘,并且牙鲆仔鱼分别对3种消毒剂的敏感性均大于牙鲆稚鱼分别对3种消毒剂的敏感性。最后依据本试验结果,作者对牙鲆疾病防治中消毒剂的使用进行了探讨。

Acute Toxicity Tests of Three Chemical Disinfectants on activity of Larval and juvenile Paralichthys olivaceus

A total of 3 kinds of chemical disinfectants were chosen to observe their effects on Larval and Juvenile Paralichthys olivaceus.The results showed that the 24 h LC50,48 h LC50 and the safe-concentration of Potassium permanganate for larval fish were 1.678×10-6、1.382×10-6 and 0.281×10-6 respectively;those for juvenile fish were 2.555×10-6、1.789×10-6 and 0.263×10-6;those of Formalin for larval fish were 25.821×10-6、10.671×10-6 and 0.547×10-6,those for juvenile fish were 33.959×10-6、17.046×10-6 and 1.288×10-6;those of PVP-I for larval fish were 15.744×10-6、8.163×10-6 and 0.658×10-6,those for juvenile fish were 25.802×10-6、21.286×10-6 and 4.346×10-6.According to the sensibility of Larval and Juvenile Paralichthys to three chemical disinfectants,the sensibility from high to low could be ordered as: Potassium Permanganate > Formalin > PVP-I.The sensibility of Juvenile fish to three chemical disinfectants were all high than those of Larval fish.Yet,use of disinfectants were discussed for prophylactic treatments and therapeutic treatments of diseases.