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在鱼类越冬期间(12月至翌年1月),要切实做好预防越冬成鱼(鱼种)死亡的工作,现将其死亡原因及预防措施介绍如下,以供参考。1、死亡原因(1)水体严重缺氧。到了冬季,因干旱缺乏水源补充,水中浮游植物量减少,光合作用弱,产氧量少,造成供求失衡,产氧量小于氧气消耗量;水体由于塘头猪
During the wintering period of fish (December to January of the following year), we must earnestly do a good job in preventing the death of overwintering adult fish (fish species), and we hereby give a brief introduction on the cause of death and preventive measures as follows. 1, the cause of death (1) a serious water shortage of oxygen. In winter, due to lack of water supply due to drought, the amount of phytoplankton in the water decreases, photosynthesis is weak, and oxygen production is low, resulting in an imbalance between supply and demand with oxygen production less than oxygen consumption.