饥饿对日本沼虾生长和部分免疫功能的影响  

The effects of starvation on growth and some immune function in the shrimp Macrobrachium nipponense

作　　者：李志华[1] 谢松[2] 王军霞[2] 陈大庆[1] 

机构地区：[1]中国水产科学研究院长江水产研究所,湖北荆州434000 [2]河北大学生命科学学院,河北保定071002

出　　处：《上海水产大学学报》2007年第1期16-21,共6页Journal of Shanghai Fisheries University

基　　金：国家自然科学基金重大和面上项目(30490234;30371105);世界自然基金项目(0523);河北省教育厅资助项目(No.2002273)

摘　　要：在25.0±1℃范围条件下,对日本沼虾进行了不同时间的饥饿处理后再投饵的恢复生长实验。对照组连续饱食投喂18d,处理组分别饥饿2、4、8d,再分别饱食投喂16,14,10d。实验结果如下:在恢复生长时期,处理组的特殊生长率、摄食率、食物转化率明显高于对照组,超氧阴离子是随着饥饿时间的延长而增加,而超氧化物歧化酶和过氧化氢酶的酶活力则是随着饥饿实验先稍微增加,后又下降。在恢复投饵后,超氧阴离子、超氧化物歧化酶和过氧化氢酶又恢复至对照组水平。实验结果表明,日本沼虾继饥饿后再恢复喂食出现完全或部分补偿生长效应不仅由于增加食欲,提高摄食水平,同时改善了食物转化率。因此,补偿生长是这两种生理因素共同作用的结果。In the condition of 25.0 ±1℃, the recovery growth experiment in the shrimp Macrobrachium nipponense following different periods of starvation was carried out. The experiment lasted for 18days for each test group. Group C, S2, S4 and S8 were deprived of food for 0 （control）, 2, 4 and 8 days, respectively. Then each group was fed during its rest experimental time. The indexes of specific growth rate, feeding rate and food conversion efficiency in terms of wet weight in each previously starved group were higher than those in group C. During the time of starvation, the quantity of ROS was rising too. While the activity of superoxide dismitase and catalase increased a little and then decreased significantly. At the end of the recovery growth, the indexes of the immune system of the shrimp in each group were similar with control group. The results indicated that there was completely-or-partially-compensatory effect in-the recovery growth in the Macrobrachium nipponense following starvation, and that the compensatory effect mainly resulted from significant increase of the feeding level and food conversion efficiency in the recovery growth. So, the compensatory growth in the shrimp Macrobrachium nipponense is the result of the two physiological factors working together.

关 键 词：日本沼虾 饥饿 补偿生长 免疫功能 

分 类 号：Q959.223[生物学—动物学] S917[农业科学—水产科学]