鲤是我国北方水产养殖中养殖区域最广、面积最大、总产量最高的传统当家品种,但目前市场上现有的鲤苗种质量参差不齐,品种杂,性状退化。而且因为气候及品种的适温性问题,早繁苗种的供应一直是困扰天津地区渔业生产的问题之一。由于缺乏早繁苗种,天津地区一直从南方调运,因路途遥远,不但长途运输费用高,成活率低,而且容易将外地病菌带入,给本地的渔 Common carp is the most widely cultivated area in northern China aquaculture, the largest area, the highest total yield of the traditional varieties, but the current market carp seed quality uneven, variety miscellaneous, traits degradation. And because of the climatic and climate adaptability, the supply of early-bloomer seedling has been one of the problems plaguing the fishery production in Tianjin. Due to the lack of early-blooded seedlings, the Tianjin area has been transported from the southern part of the country. Due to long distances, not only long-distance transportation costs are high but survival rates are low. Moreover, it is easy to bring in foreign germs and give local fishing