论文部分内容阅读
冬季,由于光照弱,气温较低,致使池塘水温底层高于表层。而且冬季鱼类已基本停止摄食、大多数集聚在鱼塘底部,若在水质差,鱼体弱、管不善等情况下,很可能造成水中缺氧,影响了鱼类越冬和生长。为了减少死亡,提高鱼产量,提供几点增氧措施,供渔户参考: 1.加换新水。鱼在越冬期间除持最高水位保暖外,还应经常加注新水,增加水中溶氧,改善鱼类生活环境条件,一般每20天注水一
Winter, due to weak light, the temperature is low, resulting in the bottom of the pond water temperature above the surface. And winter fish has basically stopped feeding, most of the concentration in the bottom of the pond, if the poor water quality, poor body, tube and other circumstances, it is likely to cause water hypoxia, affecting the winter fish and growth. In order to reduce deaths and increase fish production, provide some oxygenation measures for the fishery reference: 1. Add new water. In addition to the fish during the winter to maintain the highest level of warm, but also often filled with fresh water, increase dissolved oxygen in water to improve the living conditions of fish, usually every 20 days a water