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一、鳜鱼食欲减退或不摄食的主要原因１．长期不换水，水质恶化在养殖过程中，由于鳜鱼大量捕食饲料鱼，其排泄物对养殖水体的污染十分严重尤其在水体底部，但从表面来看水却很清。而且鳜鱼在饱食后对水质的要求比空腹时高，如水质不良将产生回食现象，在排除鳜鱼养殖病害
One, the main reason for the loss or loss of appetite of anchovy 1. Long-term do not change the water, deteriorating water quality In the breeding process, as a large number of catfish prey feeding fish, its excrement of aquaculture water pollution is very serious , especially in the bottom of the water , but from the surface water is very clear. And bream after feeding the water quality requirements than fasting, such as poor water quality will produce feeding phenomenon, in the exclusion of bream fish disease