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1.选购优质鱼苗。要到诚实守信的场家购买鱼苗,买苗时要多次打样以缩小误差值,保证鱼苗数量足、质量优。同时,运输途中要加强管理,发现问题及时处理。远距离运输,装袋时每袋可溶入青霉素40万单位,以抑制袋里的鱼苗耗氧和代谢,确保运输成活率。最好选择孵出4～5天后、鱼膘充气游泳能力强、规格整齐的优质鱼种放养。
1. Buy high-quality fry. To be honest and trustworthy field house to buy fry, when to buy seedlings to proofing several times to reduce the error, to ensure that the number of fish fry enough, excellent quality. At the same time, we should strengthen management during the transportation and find out the problems are dealt with promptly. Long-distance transport, when bagged per bag can be injected into the penicillin 400,000 units, in order to inhibit the bag of oxygen consumption and metabolism fry, to ensure the survival rate of transport. The best choice to hatch 4 to 5 days after the fish 膘 inflatable swimming ability, neat specifications of high quality fish stocking.