池塘鱼类暴发性疾病与主要水化因子关系研究

Studies on the Relationship between Outbreaking Diseases and Aquatic Chemical Factors in Ponds

对33口塘主要水化因子测定结果表明:暴发性鱼病的消长与池塘水环境中无机三氮的变化有关,发病塘氨氮、亚硝酸盐氮含量显著高于未发病塘,硝酸盐氮却低于未发病塘。病愈后期氨氮、亚硝酸盐氮明显减少,硝酸盐氮增加。