近年来,随着甲鱼养殖技术的成熟,甲鱼养殖已成为人们致富奔小康的一条途径。但越冬死亡量并没有很好地得到控制。该病发生于11月份至次年的5月份,尤以4—5月份严重,死亡率高达20%。此病在全国各地均有发生,其致病的原因有以下几点:(1)、营养不良;(2)、冬眠前或冬眠中鳖体受伤或 In recent years, with the mature turtle farming technology, turtle farming has become a way to become well-to-do people. However, the amount of winter deaths is not well controlled. The disease occurred in November to the following May, especially in April-May, with a mortality rate of up to 20%. The disease occurs in all parts of the country, the reasons for the disease are the following: (1), malnutrition; (2) before or during hibernation turtle body injury or