The results showed in the soft water group of 1 . 50 mg / l cd2 + concentration , the fish were get serins contaminated and 33 % fish were died , the others were also get contaminated but no fish died 结果镉浓度为1 . 5mg l软水组7天内死亡率为33 ，而其它浓度的软水组和硬水组的草鱼均未出现死亡现象。
The results show that the contents of cadmium in grass carp tissues are visccra > gill > scales > fresh . the study shows that cd concentration in the viscera tissue gradually increased during exposure time 千”单独处理时， d ”在草鱼各组织中的蓄积比对照明显增加，肝脏中cdz ”的蓄积含量随时间的延长呈线性上升。
Indeed , groups of homozygous diploid mitogynogenetic fry of grass carp , which is very important for both the theoretical and practical research of genetic breeding , have been produced with this techniques based on the parameters 并得到了在遗传育种理论研究和生产应用上均有重要价值的基因纯合型的雌核发育草鱼。
Cytological genetic analysis revealed that the chromosome number of gynogenetic grass carp is 48 and the karyotype is 18m + 24sm + 6st , fundamental arm number ( nf ) is 90 , just as those of the common grass carp 此外，对雌核发育草鱼细胞遗传学分析证实所得雌核发育草鱼的染色体数目为48条，其核型公式为18m + 24sln + 6st ;臂数为哪习o 。
The developmental procedure of first cleavage of grass carp eggs activated by uv - irradiated common carp sperm were systematically observed by method of histological section 本文用组织切片方法系统地观察了用被紫外线照射的湘江野鲤( cyprinuscarpioxiangjiang )的精子作激活源启动草鱼( ctenopharyngodonidellus )卵子雌核发育的细胞学变化过程。
