鱼种规格大小与体质好坏,直接影响其越冬成活率。生长实践证明,鱼种规格越小,越冬成活率越低。进入秋季,气温水温逐渐下降,鱼种的生长由增加体长转入增加体重、大量积蓄营养物质,以备越冬消耗所需。因此,必须抓好鱼种的秋季培育管理特别是对规格尚小的鱼种应采取强化培育措施,使之尽快增加体长体重,保证安全越冬。 Species size and physical quality, directly affect the survival rate of overwintering. Growth practice has proved that the smaller the size of fish species, the lower the survival rate of winter. Into the fall, the temperature of water temperature gradually decreased, the growth of fish species by increasing body length into increased weight, a large number of nutrients, in preparation for winter consumption required. Therefore, it is necessary to do a good job in autumn fostering management of fingerlings, especially for fingerlings of small size, so as to increase body weight and body weight as soon as possible so as to ensure the safety and wintering.