五、水质条件对牙鲆养殖的影响工厂化养殖牙鲆,除每天测定鱼池水温外,要配有专职化验员,每天定时定池检测养鱼池的溶解氧、pH值、氨氮,应注意的是溶解氧的含量及氨氮浓度对鱼的生长有重大影响。生产上主要通过调节换水量来达到维持池水的水质,换水量的大小又与水温高低成正比。 Fifth, the impact of water quality conditions on Japanese flounder farming Paralichthys olivaceus factory farming, in addition to the daily determination of fish pond water temperature, with a full-time laboratory technician, daily scheduled pool detection of fish pond dissolved oxygen, pH, ammonia nitrogen should be noted It is the dissolved oxygen content and ammonia concentration that have a significant effect on fish growth. Mainly through the adjustment of water production to maintain the water quality of the pool water, the amount of water change in turn is proportional to the level of water temperature.