鱼种是渔业生产高产高效的关键,鱼种的规格大小与膘体肥瘦,直接关系其越冬成活率。秋季是鱼种培育的关键时期,必须切实抓好如下几项工作:1、改善水体环境,促进鱼种生长。进入秋季,随着鱼种的生长、摄食量增大,水中饵料生物减少,池中有害物质积累增多,水质老化,溶氧降低,对鱼种? Fish species is the key to high yield and high efficiency of fishery production. The size and size of fish species are directly related to the survival rate of overwintering. Autumn is a critical period of fishes breeding, we must effectively grasp the following tasks: 1, to improve the water environment, promote the growth of fingerlings. Into the fall, with the growth of fish species, food intake increases, the biological reduction of water bait, the accumulation of harmful substances in the pool increased water quality aging, dissolved oxygen decreased, the species?