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虾病防治既要坚持“无病先防,有病早治”的原则,又要采取“对症下药,谨慎用药”的防治措施,严把对虾养殖的前、中、后期的病害防治关。现把对虾养殖期间部分药物施用的注意事项介绍给大家,以供参考。 一、虾苗放养前的虾池消毒注意事项 虾苗放养前施用漂白粉消毒虾池时应注意待药性全部消失后再放养虾苗。因为漂白粉的安全浓度范围比较小。超量使用,药性不易很快消失,虾苗会中毒死亡。所以,在使用前一定要测量好水体,算准亩用药量,虾池全面清池消毒用药浓度一般为10—20×10~(-6)(指有效氯浓度),如果在虾池中间消毒一般用1-4×10~(-6)(全药浓度)。并详见药品说明施用,保持良好的虾池水质。
Prevention and treatment of shrimp diseases should not only insist on the principle of “disease-free prevention and early treatment of sickness”, but also take the prevention and cure measures of “treating the disease rightly and prudently” and strictly control the prevention and control of the diseases before, during and after the shrimp farming. Now shrimp farming part of the drug administration precautions introduced to you for reference. First, before shrimp stocking shrimp pond disinfection precautions Before the stocking of shrimp vaccine bleach disinfection shrimp pond should pay attention to wait until after all the disappearance of drug-free stocking shrimp. Because of the safe range of bleaching powder is relatively small. Excessive use, the drug is not easy to disappear quickly, shrimp will be poisoned. Therefore, the use of water must be measured beforehand, considered the amount of medication, shrimp pond disinfection of the general pool concentration is generally 10-20 × 10 ~ (-6) (refers to the effective chlorine concentration), if disinfection in the middle of shrimp ponds Generally with 1-4 × 10 -6 (full drug concentration). And see the drug instructions for use, to maintain a good shrimp pond water quality.