氨对鱼类毒性的研究

The Research on Toxicity of Ammonia to Fish

本研究以鲤鱼、草鱼、鲢鱼为试验材料，做了不同浓度氨对鱼类急性、亚急性毒性试验、回避试验和血微核实验，测定了不同浓度氨对鱼类血液微核率，生理、生化等指标，对测定数据做了统计学分析。试验结果，三种鱼９６小时半致死浓度分别为１．４６０、１．３６３和０．７１２ｍｇ／ｌ，鲤鱼对氨的回避临界浓度范围在０，５～１．００ｍｇ／Ｌ之间。ｓＧＯＰ、ｓＧＯＴ值随着浓度的增加而增高。Ｈｂ和ＲＢＣ则随浓度增加而降低。在本试验浓度范围之内不产生微核反应。

Based on the experimental mat6rials of carp, grass carp and silver carp, the experiments were made on ammonia in different concentration to the fishes, acute, subacute, evasion and blood tiny core. It determined the indexes, of ammonia in.different concentration to the fishes' blood tiny core, physiology, biochemistry, It also gave the determined indexes the statistics analysis. The following is the experimental result: The concentration causing the death of the three kinds of fishes within 96 hours is 1.460. 1.363 aam 0.712mg/L. The critical ammonia conCentration of carps evnding is between 0.5-1.0mg/L,The value of sGOPand sGOT are increasing as the concentration is increasing. But Hb aam RBC are decreasing as the concentration is decreasing.There is no tiny core reaction within the normal experimental concentration environment.