水产养殖动物经常受到病毒、细菌、寄生虫、真菌等生物入侵者的危害。这些入侵者自发地或在养殖过程中受到诱导而产生毒害作用。人们普遍认为,疾病问题是随着动物养殖技术的发展而产生的。如果将水产养殖中鱼类的健康问题同控制疾病的方法联系起来考虑,则水产养殖动 Aquaculture animals are often endangered by biological invaders such as viruses, bacteria, parasites, fungi and the like. These intruders are poisoned spontaneously or during breeding. It is generally believed that the disease problem is with the development of animal breeding technology. If fish health concerns in aquaculture are to be considered in conjunction with disease control methods, aquaculture activities