Zinc bioaccumulation in Tenebrio molitor larva
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摘要: 在饲料中添加不同量的硫酸锌喂养黄粉虫(Tenebrio molitorL.)幼虫,测定幼虫的锌含量和体重变化,计算黄粉虫幼虫的特定生长率和幼虫对锌的生物积累系数,分析黄粉虫幼虫对锌的富集作用。结果表明,在硫酸锌含量为100 mgkg-1时,幼虫体内锌含量最高,干物质含量最高,对锌的积累系数最高,幼虫增重明显优于不添加硫酸锌的对照组;硫酸锌含量过高,幼虫的生长受到抑制。Abstract: Tenebrio molitor L.larvae were fed on a diet with varying amounts of zinc sulfide to study the zinc bioaccumulation in the insect.Weight of and zinc concentration in the larvae were determined.And,the special growth rate and zinc bioaccumulation factor(BAF) in the larvae were also calculated for the analysis.The result showed that,when the zinc concentration in the diet was 100 mgkg-1,the zinc concentration and BAF in larva were significantly higher than those in the other groups.The weight gain was also higher than the control.When the dietary zinc concentration was higher than 100 mgkg-1,normal larval growth was retarded.
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Key words:
- Tenebrio molitor L. /
- zinc /
- bioaccumulation /
- bioaccumulation coefficient
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