摘要
滨海盐碱地盐度为34．89的咸井水，经沉淀、曝晒、充气、消毒。施用EDTA2～3～106络合重金属离子，再用淡水调成盐度12的半咸水，进行罗氏沼虾育苗试验。当卵子由淡黄变为浅灰时，移至半咸水中孵化，每天5：00用120目筛绢网将孵出的蚤状幼体捞入幼体培育池，布他密度8～12万尾／m3。幼体在动期前，每天投喂卤虫无节幼体2～3次，Z6期后改投蛋黄、蛋羹，口喂8次。4000尾亲虾在290m3水体中，育出虾苗571．9万尾，幼体成活率25％以上。专家鉴定认为，在同类研究中居国内领先水平。
An experiment was conducted on seed-rearing of Macrobrachium rosenbergiiwith the saline well water of salinity 34.89. The saline well water must be treated before usewith the method as follows: precipitate,expose under the sun,aerate with aerator,disinfect,complex the heavy metal ions with EDTA2～3×10（-6） and then gradually adjust the salinty ofthe saline well water to 12 with the fresh water. When the egg colour changed from yellowinto light grey,rernoved the eggs into the brackish water to hatch. Every day,dredged up thehatched Zoaea with a gauze sieve to remove into a nursery pond. The releasing density of theZoaea was 80～120 thousand individuals per cubic meter. The Zoaea before Z5 were fed onNauplius of Artemia salina 2～3 times a day,and after Z6 fed on yolk and egg custard 6 timesa day. 4000 parent shrirnps in the water body of 290 m3 produced juvenile shrimps of 571. 9million which survival rate was above 25%. The result,appraised by experts,was in the leadat home.
出处
《齐鲁渔业》
1999年第1期20-22,共3页
Shandong Fisheries
基金
东营市科技发展计划重点
关键词
罗氏沼虾
育苗
咸井水
配制半咸水
亲虾暂养
Macrobrachium rosenbergii
seed-rearing
saline well water
brackish water
rearing the juvenile shrimp
