本文对常见几种淡水养殖鱼鲜度变化的特点作了研究。结果表明鲢、鳙、草鱼等几种淡水鱼在０℃贮藏下的ＴＶＢ－Ｎ变化，呈现的趋势大体相同。在０℃及－３℃低温下ＴＢＶ－Ｎ变化缓慢，且数量水平较低，在２０℃下则变化迅速，呈直线上升之势。实验结果也表明这几种淡水鱼在０℃下的Ｋ值变化速率随鱼种而异，其大小依次为鲢、鳙＞草鱼＞团头鲂＞鲫。文中根据对草鱼、团头鲂等淡水鱼在不同温度下Ｋ值变化的测定结果作了阿列纽斯图（Ａｒｒｈｅｎｉｕｓｐｉｏｔ），并得出其Ｋ值变化的动力学参数。 In this paper, several freshwater aquaculture fish freshness characteristics were studied. The results showed that the TVB-N changes of freshwater fish such as silver carp, bighead carp and grass carp stored at 0 ℃ showed the same trends. At 0 ℃ and -3 ℃ low temperature TBV-N changes slowly, and the lower the number of levels, the rapid change at 20 ℃, showed a straight line up trend. The experimental results also show that these Kinds of freshwater fish at 0 ℃ K value varies with different species, the size of the order of silver carp, 鳙> grass carp> bream> crucian carp. In this paper, Arrheniuspiot was made based on the determination of the change of K value of freshwater fish such as grass carp and bighead carp at different temperatures, and the kinetic parameters of K value were obtained.