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鲤鱼人工繁殖技术,虽然早已普及,但在鱼苗从出膜至肠管形成期间,成活率很低,一般仅有30—40%。这是因为,鱼苗出膜到肠管形成这80多个小时内,需要经常依附鱼巢,若遇大风大雨,就会被冲离鱼巢下沉池底,造成大批死亡。因此,孵化鲤鱼苗最好使用0.1—0.3亩的小池,以便于采取措施加强管理。但是,这样小的水体,也容易引起水质恶化而致鱼苗死亡。另外,从孵化池向育种池搬运,操作中也会发生很多死亡。为了解决这些问题,我们采取
Artificial propagation of carp, although already widespread, but in the fry from the film to the bowel formation, the survival rate is very low, usually only 30-40%. This is because, fry out of the membrane to the bowel formation of more than 80 hours, often need to rely on the nest, in case of heavy rain, it will be washed away from the bottom of the nest sinking, resulting in a large number of deaths. Therefore, hatching carp fry the best use of 0.1-0.3 acres of small ponds in order to facilitate measures to strengthen management. However, such a small body of water, but also easily lead to deterioration of water quality caused fry death. In addition, there is also a lot of death in handling from the hatchery to the breeding pond. In order to solve these problems, we take