印染污水对银鲫卵黄蛋白原和金属硫蛋白水平的影响

分析了不同浓度印染污水对银鲫(Carassius auratus)的生殖相关指标和金属硫蛋白(MT)的影响.设计1个对照组和2个试验组,对照组采用天然的水库水,试验组分别用浓度为0.1％和0.2％的印染污水养殖银鲫,每组3个平行,每个平行随机放入50尾银鲫,试验期为4周.结果表明,养殖4周后,0.1％印染污水组银鲫的肝体指数和血清卵黄蛋白原(VTG)水平显著上升(P＜0.05),0.2％印染污水组银鲫的血清VTG水平显著低于对照组(P＜0.05),印染污水对银鲫性腺指数没有影响.0.1％印染污水组银鲫在第2、3、4周,肝脏MT水平均显著高于对照组(P＜0.05),0.2％印染污水组银鲫肝脏MT水平在第3周时显著升高(P＜0.05),印染污水对银鲫肾脏MT水平没有影响(P＞0.05)；表明印染污水能够影响银鲫繁殖功能和组织MT的水平.

Effect of Printing-dying Sewage on Vitellogenin and Metallothionein Level of Carassius auratus

The effect of printing-dying sewage on reproduction indexes and metallothionein (MT) level in carassius aurctlus was examed. Gibel carps were randomly divided into 2 groups (three eplicates for each group, 50 fish per eplicate), Control group was cultivated in pool water ,and treatment groups were cultivated in pool water with printing-dying sewage at concentration of 0.1%, 0.2% respectively. The test lasted for 40d. The result was obtained that vitellogenin (VTG) content and liver somatic index(LSI) of 0.1% group were significantly higher than that of control group (p<0.05), VTG content of 0.2% group was significantly lower than that of control group (p<0.05) after 4 weeks. The printing-dying sewage had no significant effect on gonado-gomatic index(GSI). The MT concentration in liver of 0.1% group was significantly higher than that of control group at 2, 3, 4 weeks respectively, and that of 0.2% group was higher than that of control group at 3 weeks. The printing-dying sewage had no significant effect on the MT concentration in kidney. These results showed that printing-dying sewage could affect breeding characteristics and the MT level of tissues in gibel carp.