在特定条件的实验室内，采用驯化和科学养殖的方法。
Methods: the methods of taming and scientific breeding were used in the laboratory with specific conditions.
该读者来函节的用意是提供一个论坛，讨论的科学养殖产生的材料发表在杂志上。
The Letters to the Editor section is intended to provide a forum for discussion of aquacultural science emanating from material published in the journal.
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