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Effects of Cd on some hormone activities and concentration of plasma electrolytes in common carp
Author(s): 
Pages: 88-91
Year: Issue:  2
Journal: JOURNAL OF FISHERY SCIENCES OF CHINA

Keyword:  血浆电解质血浆渗透压催乳素皮质醇;
Abstract: 鲤暴露于质量浓度20 μg/L的镉溶液中2周时,其相对生长率比对照组有增加的趋势;暴露30 d后鲤生长速度低于对照组;暴露3~7 d,鲤血浆渗透压急剧下降,Ca2+、Na+浓度降低而Mg2+浓度升高。电镜观察显示,鲤脑垂体催乳素细胞分泌量增加,血浆中肾上腺皮质醇质量浓度明显增高。其离子水平及激素水平的改变均是暂时的,暴露14 d后恢复至正常水平。镉在短时期内导致低钙并对鲤有短期促生长效应,这可能与脑垂体催乳素分泌有关,而皮质醇含量的增高可能是鲤对镉刺激的应激反应。
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