洞庭青鲫作为人工选育的养殖新品种,抗病力强是其主要优良性状之一。在多年的养殖试验和大面积推广生产过程中,尚未发生过洞庭青鲫因感染某种鱼病而大量死亡。实践证明,洞庭青鲫对各种疾病感染率极低,即使有少部分感染疾病,其成活率也不会受到太大的影响。但是洞庭青鲫在高密度 Dongting green crucian carp as artificial breeding new breed, disease resistance is one of its main fine traits. In many years of breeding experiments and a large area to promote the production process, there have been no Dongtingqing crucian carp infected with a fish disease and a large number of deaths. Practice has proved that Dongting green crucian carp a very low rate of infection of various diseases, even if a small number of infectious diseases, its survival rate will not be affected too much. But Dongting green crucian carp in high density