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水库鱼类资源增殖的主要手段,一方面是搞好经济鱼类的繁殖保护、另一方面则是投放足够数量的鲢、鳙、草鱼、青鱼等大规格鱼种。在一些大型水库因受培育池面积、饲料等条件的限制,鱼种培育数量往往不能满足投放需要,致使水库的生产潜力不能充分发挥,鱼产量上不去。因此,利用水库本身来培育鱼种,扩大鱼种来源,在全国一些水库已引起相当的重视。因为,这不仅节约饲料、肥料,而且不与农业争地。从鱼苗到
The main means of proliferation of the reservoir fish resources, on the one hand is to do a good job of breeding and protection of economic fish, on the other hand is put a sufficient number of silver carp, bighead carp, grass carp, herring and other large size fish species. In some large reservoirs due to the area of incubation ponds, feed and other conditions, the cultivation of fish species often can not meet the needs of delivery, resulting in the potential of the reservoir can not give full play to the production of fish up. Therefore, using the reservoir itself to breed fish species and expand the source of fish species has drawn considerable attention in some reservoirs nationwide. Because this not only saves feed, fertilizer, but also not compete with agriculture. From fry to