论文部分内容阅读
为研究哈氏仿对虾人工育苗技术,对从浙江近海捕获的性腺发育成熟的野生哈氏仿对虾进行了人工海水繁育试验。试验期间水温处于自然温度下,盐度控制在21～28,投喂生物饵料,亲本经过驯化和强化培育后顺利产卵,共计获得受精卵约40.88万粒;孵化出无节幼体30.2万尾,孵化率为73.9%;经过25d的培育,获得体长1.5 cm的虾苗20.1万尾,苗种培育成活率为66.56%。
In order to study the artificially raised seedlings of imitative shrimp Habitat, Artificial seawater breeding experiments were carried out on the wild Hamster shrimp, which was gonadally developed from the Zhejiang coast. During the experiment, the water temperature was at the natural temperature and the salinity was controlled at 21-28. After feeding the biological bait, the parents spawned after acclimation and intensive breeding, obtaining a total of about 408,800 fertilized eggs; hatching out 302,000 nauplii, The hatching rate was 73.9%. After 25 days of cultivation, the number of shrimp seedlings with body length 1.5 cm was 201,000, and the survival rate of seedling cultivation was 66.56%.