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有关螯虾的生产因素很多,这里概括几种螯虾生产的不同管理措施。 在欧洲,由于螯虾疾病,大批螯虾死亡,这促使放流计划的形成。要生产健康的螯虾幼体就需要发展孵化系统。这些系统已经成立,并在集约式条件下生产了数量可观的螯虾苗种。 反之,南美螯虾养殖场就没有采用集约式孵化和育苗。他们采用泛养,精养法培育螯虾幼体不见得经济效益高。 澳大利亚螯虾养殖还处于发展阶段,有些地方以经验丰富的孵化场为准。 螯虾养殖,怀卵雌体或幼体的集约式生产被认为是不必要的,该品种的繁殖季节长,可延续6个
There are many factors related to the production of crawfish, and several different management measures for the production of crawfish are summarized here. In Europe, a large number of crayfish died due to crayfish disease, prompting the formation of a discharge plan. To produce healthy crayfish larvae requires the development of hatching systems. These systems have been established and produce a significant number of crawfish species under intensive conditions. Conversely, the South American crawfish farms do not use intensive hatching and nursery. They use pan-raising, intensive cultivation of crayfish larvae are not necessarily high economic efficiency. Crawfish farming in Australia is still at a developmental stage, with some areas based on experienced hatcheries. Crawfish breeding, pregnant females or larvae intensive production is considered unnecessary, the breeding season of the breed, can be extended 6