摘要
对礼乐农场鱼苗孵化用水及其水源的水质调查研究、分析试验，发现水中溶解氧不足，是导致该场鱼苗大批死亡、孵化生产归于失败的主要原因。用降雨机增氧，能有效提高孵化用水的溶氧水平，改良水质，使孵化生产顺利进行。
A great deal of investigations and chemical analyses have been done on the farm Life's spawning water and its source. It had been fond that the cause of many fries's dead that leads to the failure of incubation was the dsficieny of dissolved oxygen in the water. Using rainmaking machine to increase the dissolved oxygen can effectively raise its level and improve the water quality, so that the incubation can go on well.
