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在鱼苗生产过程中,往往遇到正在孵化的正常鱼卵突然发生大批提早溶膜的现象。湘阴东湖渔场水科队是一个年产近亿尾“湘鲫”和家鱼苗的孵化场,近年陆续出现鱼卵大批提前溶膜而造成孵化失败的情况,仅1985年一次就因此损失“湘鲫”和其它家鱼苗近千万尾。类似的情况在我省其他地区的一些家孵场所常有发生。一、正常鱼卵提前溶膜成因的探讨为了解决提前溶膜这一家孵生产的难题,我们对历次出现提早溶膜现象的孵化水质,水温,溶氧等理化因子进行了详细的测试,并对有关催产亲鱼体质,鱼卵质量,孵化工具及操作技术各方面原因作了
In the production process of fry, often encounter a large number of normal hatching eggs sudden dissolution of a large number of early film phenomenon. The Xiangke Donghu Fishery Aquatic Team is a hatchery with an annual output of nearly 100 million “Xiang Carassius auratus” and domestic fish fry. In recent years, a large number of fish eggs have been gradually dissolved and caused hatching failure. In 1985, Crucian carp "and other fish fry nearly 10 million. A similar situation often occurs in some hatcheries in other parts of the province. First, the discussion of the causes of the formation of normal fish eggs in advance dissolution In order to solve the problem of early hatching of a hatching, we have carried out a detailed test on the physicochemical properties such as hatching water quality, water temperature and dissolved oxygen, The reasons for oxytocin broodstock quality, quality of roe, hatching tools and operating techniques