定期对青虾塘加注新水,是保证池水中有较高溶氧,防止青虾浮头的有效措施。但是,应控制青虾塘每次的进水时间,一次进水时间不宜过长。青虾塘注水时,如果一次进水时间过长,势必使池中水位陡然增高,导致池水水温、pH值在短时间内变化幅度太大。引起青虾适应性降低,逆水乱窜乱游,甚 Regularly add fresh water shrimp pond, is to ensure that the pool has a higher dissolved oxygen to prevent freshwater shrimp floating head of effective measures. However, should control the freshwater shrimp pond water time, a water intake time should not be too long. Freshwater prawn pond water, if a long time into the water, is bound to make the water level suddenly increased pool, resulting in water temperature, pH value changes in a short period of time too much. Caused by the reduced adaptability of freshwater shrimp, chaotic water chaos swim, very