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Responses of GH, IGF-I, Glycogen Content and RNA/DNA Ratio of Juvenile Paralichthys olivaceus to Salinity Manipulation
Author(s): LIU Xu-jia, HUANG Guo-qiang, LI Jie, TANG Xia, ZHANG Ling-yan
Pages: 171-
175
Year: 2013
Issue:
2
Journal: Guangxi Sciences
Keyword: 褐牙鲆; 盐度操作; GH; IGF-I; STC;
Abstract: 对不同盐度胁迫10d后盐度调节至19后恢复期间褐牙鲆(Paralichthys olivaceus)幼鱼血浆生长激素(GH)、类胰岛素生长因子Ⅰ(IGF-I)、司登尼亚钙素(STC)及肌肉和肝脏中RNA/DNA比值和糖原含量变化进行实验监测.结果表明:血浆GH质量浓度在整个实验期间未出现明显差异.IGF-I质量浓度在高盐处理始终较低,只在实验结束时恢复至对照处理水平,而低盐胁迫处理的IGF-I质量浓度则在恢复期间明显高于对照处理.胁迫期间低盐处理STC质量浓度显著低于对照处理和高盐处理,但是在恢复期间恢复至对照组水平;而高盐胁迫处理则下降至显著低于其余两个处理水平.除在胁迫结束时低盐处理的肝脏RNA/DNA高于其余两个处理外,在其他时间肌肉和肝脏的RNA/DNA在不同处理间不存在显著差异.肝脏和肌肉糖原含量在所有时间上不同处理间均不存在显著差异.
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