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自从五十年代初Blaxter开始大西洋鲜鱼精巢短期冷冻保存研究以来，国外的鱼类精子超低温冷冻保存研究已取得了很大进展，正在从最初的基础理论研究和方法探索向实用技术研究转变。但是，鱼类的卵子和胚胎研究进展就远不如精子。目前绝大部分工作都停留在解决冷冻过程中各技术环
Since the early 1950s, when Blaxter started the study on short-term cryopreservation of Atlantic fresh-caught fish, the research on cryopreservation of fish sperm foreign countries has made great strides and is shifting from the basic theoretical research and methodological exploration to practical technology research. However, the progress of fish eggs and embryos is far less advanced than that of sperm. At present, most of the work is still stuck in solving the technical problems in the freezing process