饥饿及再投喂对日本囊对虾糖代谢的影响  

Effects of starvation and re-feeding on carbohydrate metabolism of Marsupenaeus japonicus

作　　者：刘璐[1] 吴立新[1] 张伟光[1] 吴垠[1] 刘瑜[1] 邓宏相[1] 

机构地区：[1]大连水产学院辽宁省省级高校水生生物学重点实验室,辽宁大连116023

出　　处：《应用生态学报》2007年第3期697-700,共4页Chinese Journal of Applied Ecology

基　　金：辽宁省博士科研启动基金项目(20021049);留学回国人员科研启动基金(2005-383号);辽宁省教育厅高等学校科学研究计划(A类)资助项目(202132030).

摘　　要：研究了日本囊对虾在饥饿和再投喂下血糖、肝胰脏糖原和肌糖原含量的变化．结果表明：在饥饿状态下，日本囊对虾肝胰脏糖原含量和血糖浓度在饥饿开始时迅速下降，肌糖原含量在饥饿10d时下降到最低值，在饥饿10～15d时通过糖原异生作用又恢复至最初水平，但随着饥饿时间的延长，糖原含量持续下降．恢复投喂后，肝胰脏糖原含量和肌糖原含量均能得到较好恢复，饥饿10d和15d组的血糖浓度在恢复投喂10d后显著高于对照组，但饥饿25d组的血糖浓度始终显著低于对照．表明饥饿时间过长，对血糖浓度的恢复有较大影响．This paper studied the variations of glucose concentration in haemolymph and glycogen concentration in hepatopancreas and muscle of Marsupenaeus japonicus under starvation and re-feeding. Groups C, S1, S2 and S3 were deprived of food for 0, 10, 15 and 25 days, respectively, and then re-fed for 10 days. Under starvation, the glucose concentration in haemolymph and glycogen concentration in hepatopancreas decreased rapidly at the beginning, and the glycogen concentration in muscle was the lowest after 10-day fasting. In the following 5 days, the glucose concentration in haemolymph and glycogen concentration in hepatopancreas and muscle recovered to their initial levels due to gluconeogenesis,but the glycogen concentration kept declining with fasting. After refeeding, the glycogen concentration in hepatopancreas and muscle recovered well, and the glucose concentration in haemolymph had a sharper increase in groups S1 and S2 than in group C, but was markedly less in group S3 than in group C. These results indicated that long-term starvation had a greater effect on the glucose concentration in haemolymph.

关 键 词：日本囊对虾 饥饿 再投喂 糖代谢 

分 类 号：S917.4[农业科学—水产科学]