周期性饥饿—再投喂对牙鲆幼鱼生长和饲料利用的影响  

The effects of the cyclic starvation-feeding on growth and food utilization in juvenile flounder Paralichthys olivaceus

作　　者：姜海波[1] 姜志强[1] 

机构地区：[1]大连水产学院农业部海洋水产增养殖学与生物技术重点开放实验室

出　　处：《大连水产学院学报》2007年第3期231-234,共4页Journal of Dalian Fisheries University

基　　金：国家科技部"十一五"支撑计划资助项目(2006BAD09A01)

摘　　要：于2003年5～6月，在（18±1）℃条件下对牙鲆Paralichthys olivaceus幼鱼（初始体重为4．21±0．28g）分别进行了周期性饥饿-再投喂的生长试验。对照组连续饱食投喂36d，处理组S2F4、S2F6、S4F8分别周期性饥饿2d再投喂4d，饥饿3d再投喂6d和饥饿4d再投喂8d。结果表明：S2F4组牙鲆幼鱼的终末体重、特定生长率、摄食率和饲料转化率均显著高于对照组（P〈0．05）；S3F6组牙鲆幼鱼的终末体重、特定生长率、摄食率和饲料转化率与对照组无显著差异（P〉0．05）；S4F8组牙鲆幼鱼的终末体重、特定生长率和摄食率显著低于对照组（P〈0．05），而饲料转化率与对照组无显著差异（P〉0．05）。试验结束时，各处理组鱼体生化组成与对照组没有显著差异（P〉0．05）。A 36 day multi - cycle growth experiment refeeding on growth and food utilization in juvenile was carried out to determine the effects of repeating starvation flounder Paralichthys olivaceus with initial weight of （4.21 ± 0.28 ）g from May to June,2003. Fish were assigned to one of four treatments：deprived for 2 days and then re -fed for 4 days （S2 F4 ）, deprived for 3 days and then re -fed for 6 days （S3 F6 ） , deprived for 4 days and then re -fed for 8 days（ S4F8 ） ,or fed for 36 days without deprivation（ control group）. At the end of the experiment the mean body weight, specific growth rate,food consumption and food efficiency in the group S2F4 were significantly higher than those in the control group. The mean body weight, specific growth rate, food consumption rate, and food efficiency in group S3F6 and food efficiency of group S4F8 were similar to that of the control group. The others of group S4F8 were still significantly lower than that of the control group. After 36 days, there were no significant differences in body biochemical composition among four groups.

关 键 词：周期性饥饿-再投喂 牙鲆 生长 食物利用 

分 类 号：S917[农业科学—水产科学]