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要环节。秋冬季节是性细胞处于生长的时期,这阶段的饲养管理工作,直接影响亲鱼性腺的成熟,翌年的健产效果以及鱼卵的受精率和孵化率,所以必须予以重视。1 亲鱼池的条件和清整 培育亲鱼的鱼池,既要靠近产卵池又要有良好的水源条件且灌排水方便。鲢、鳙亲鱼池底淤泥约为20cm,青、草亲鱼池底则应少些或无淤泥。一般面积为0.20～0.33hm~3,水深1.5m左右。在放养前要清整亲鱼池,挖去过多的淤泥,维修塘埂,割除杂草,并用生石灰或漂白
To link. Autumn and winter is the period in which the sex cells are growing. The feeding and management work at this stage has a direct impact on the maturation of broodstock gonads, the health-giving effect of the following year and the fertilization rate and hatching rate of roe deer eggs. Therefore, attention must be paid to this. 1 The conditions of parent fish ponds and fish ponds to cultivate broodstock should both be close to the spawning ponds and have good water conditions and convenient irrigation and drainage. Silver carp, bighead carp pond bottom silt is about 20cm, green, grass broodstock bottom should be less or no silt. The general area of 0.20 ~ 0.33hm ~ 3, water depth of about 1.5m. Before stocking to clear the broodstock pond, dredged too much mud, maintenance ponds, cut off weeds, and use quick lime or bleach