鲤鱼生活在水中，周围环境存在着不少导致肝病的因素，如病毒、细菌及亚硝酸盐、氨氮等，尤其在集约化养殖情况下，这种感染机会更多；其次，人工配合饲料由于保管不当，如脂肪氧化、饲料发霉变质以及饲料中矿物质与维生素配比、动植物蛋白配比不合理，或者饲料中长期添加某些 Carp live in water, there are many environmental factors that lead to liver disease, such as viruses, bacteria and nitrite, ammonia nitrogen, etc., especially in intensive farming, the chance of infection more; secondly, due to custody of artificial feed Improper, such as fat oxidation, mildew mold feed and feed the ratio of minerals and vitamins, animal and plant protein ratio is not reasonable, or feed some of the long-term