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近年来,随着海养业的不断扩大和发展,鱼虾单位面积产量逐年提高。其中,以梭鱼增产较显著,其因素除加强管理,合理放养外,也取决于养殖方法的改进。进行梭鱼越冬,养殖越龄梭就能克服我场历来当年养当年收低产传统习惯。 76年以来,我场曾多次进行过海水自然越冬试验,由于我省受北方寒流袭击频繁,海水冰点低,梭鱼难于抗耐低温而每年越冬成活率很不稳定,一般在40％左右,遇大寒年份往往全部冻死。1981年吸取以往经验教训后,利用当地地下机井水,并采取积极有
In recent years, with the continuous expansion and development of the aquaculture industry, the output of fish and shrimp has been increasing year by year. Among them, the barracuda production more significant, in addition to strengthening its management, reasonable stocking, but also depends on the improvement of farming methods. Barracuda overwintering breeding more young shuttle will be able to overcome my field has been the year to support low-yielding traditions. Since 76 years, my field has conducted many natural overwintering trials of seawater. Since our province is subjected to frequent cold spells in the north and low freezing point of seawater, it is difficult for barracuda to resist low temperature and the annual survival rate of overwintering is very unstable, generally about 40% In the case of large cold are often all frozen to death. Drawing lessons from past experiences in 1981, make use of local underground well water and take positive action