限食(含饥饿)以及再充分投喂对鲻鱼生理参数的影响  

Effects of Ration Restriction and Refeeding on Blood Biochemical Indices in Mullet(Mugil cephalus Linnaeus)

作　　者：殷帅文[1] 林学群[2] 陈洁辉[2] 

机构地区：[1]井冈山学院生命科学学院,江西吉安343009 [2]汕头大学海洋生物实验室,广东汕头515063

出　　处：《水产科学》2007年第7期373-376,共4页Fisheries Science

基　　金：国家自然科学基金资助项目(30070592);井冈山学院校级课题资助项目

摘　　要：在水温19—24℃条件下对鲻鱼[初始体重：（204．42±23．13）g]进行不同时间的限食处理后再充分投喂的恢复生长试验。试验设定3种方式，对照组（饱食组）在试验期间一直投喂；半饱食组在限食期投喂量为饱食组的1／2，重喂期则恢复投喂；饥饿组在限食期不投喂食物，重喂期恢复投喂。试验期为8周。取样在限食期的第0、1、2、4周和重喂期的第1、2、4周，每次6条鱼。结果表明：限食状态下，鲻鱼半饱组和饥饿组肌肉（白肌）糖原和脂肪含量均显著降低，而肌肉水含量和肌肉蛋白含量变化均不显著；比肝重亦显著降低；体重下降但差异不显著。再充分投喂后，各生理参数均恢复到对照组水平。鲻鱼在恢复生长过程中产生了显著的补偿效应。Compensatory growth of mullet （Mugil cephalus Linnaeus） with initial body weight of 204.42 ± 23.13 g, following a period ration restriction, were studied at 19 ±24 ℃ at Nan＇ ao Marine Biology Station, between December 2001 and March 2002. In the control group, the fish was fed to satiation during the 8-week experimental period. The fish in treatment groups were restricted from food for 4 weeks and then were fed to satiation for another 4 weeks. The blood were sampled from six fish at weeks 0, 1, 2, and 4 in the period of ration restriction and at weeks 1,2, 4 in the period of re-feeding, respectively. The results showed that the concentrations of blood glucose, plasma lipid and plasma protein all significantly- decreased during ration restriction. After the fish were refed, all blood biochemical indices were recovered to the levels in the controls. The results suggest that the mullet have a completely compensatory growth during refeeding.

关 键 词：鲻鱼 限食 再投喂 生理参数 

分 类 号：S956.221[农业科学—水产养殖]